According to the versions of the httpd packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

    Encoding problem in mod_proxy in Apache HTTP Server 2.4.59 and earlier allows request URLs with incorrect     encoding to be sent to backend services, potentially bypassing authentication via crafted requests.
    Users are recommended to upgrade to version 2.4.60, which fixes this issue.(CVE-2024-38473)

    null pointer dereference in mod_proxy in Apache HTTP Server 2.4.59 and earlier allows an attacker to crash     the server via a malicious request.Users are recommended to upgrade to version 2.4.60, which fixes this     issue.(CVE-2024-38477)

    A regression in the core of Apache HTTP Server 2.4.60 ignores some use of the legacy content-type based     configuration of handlers. 'AddType' and similar configuration, under some circumstances where files     are requested indirectly, result in source code disclosure of local content. For example, PHP scripts may     be served instead of interpreted.Users are recommended to upgrade to version 2.4.61, which fixes this     issue.(CVE-2024-39884)

    Potential SSRF in mod_rewrite in Apache HTTP Server 2.4.59 and earlier allows an attacker to cause unsafe     RewriteRules to unexpectedly setup URL's to be handled by mod_proxy.Users are recommended to upgrade to     version 2.4.60, which fixes this issue.(CVE-2024-39573)

    Vulnerability in core of Apache HTTP Server 2.4.59 and earlier are vulnerably to information disclosure,     SSRF or local script execution viabackend applications whose response headers are malicious or     exploitable.Users are recommended to upgrade to version 2.4.60, which fixes this issue.(CVE-2024-38476)

    Substitution encoding issue in mod_rewrite in Apache HTTP Server 2.4.59 and earlier allows attacker to     execute scripts in directories permitted by the configuration but not directly reachable by anyURL or     source disclosure of scripts meant to only to be executed as CGI. Users are recommended to upgrade to     version 2.4.60, which fixes this issue.Some RewriteRules that capture and substitute unsafely will now     fail unless rewrite flag 'UnsafeAllow3F' is specified.(CVE-2024-38474)

    Improper escaping of output in mod_rewrite in Apache HTTP Server 2.4.59 and earlier allows an attacker to     map URLs to filesystem locations that arepermitted to be served by the server but are not     intentionally/directly reachable by any URL, resulting in code execution or source code disclosure.
    Substitutions inserver context that use a backreferences or variables as the first segment of the     substitution are affected. Some unsafe RewiteRules will be broken by this change and the rewrite flag     'UnsafePrefixStat' can be used to opt back in once ensuring the substitution is appropriately     constrained.(CVE-2024-38475)

Tenable has extracted the preceding description block directly from the EulerOS httpd security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

According to the versions of the httpd packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

    Encoding problem in mod_proxy in Apache HTTP Server 2.4.59 and earlier allows request URLs with incorrect     encoding to be sent to backend services, potentially bypassing authentication via crafted requests.
    Users are recommended to upgrade to version 2.4.60, which fixes this issue.(CVE-2024-38473)

    null pointer dereference in mod_proxy in Apache HTTP Server 2.4.59 and earlier allows an attacker to crash     the server via a malicious request.Users are recommended to upgrade to version 2.4.60, which fixes this     issue.(CVE-2024-38477)

    A regression in the core of Apache HTTP Server 2.4.60 ignores some use of the legacy content-type based     configuration of handlers. 'AddType' and similar configuration, under some circumstances where files     are requested indirectly, result in source code disclosure of local content. For example, PHP scripts may     be served instead of interpreted.Users are recommended to upgrade to version 2.4.61, which fixes this     issue.(CVE-2024-39884)

    Potential SSRF in mod_rewrite in Apache HTTP Server 2.4.59 and earlier allows an attacker to cause unsafe     RewriteRules to unexpectedly setup URL's to be handled by mod_proxy.Users are recommended to upgrade to     version 2.4.60, which fixes this issue.(CVE-2024-39573)

    Vulnerability in core of Apache HTTP Server 2.4.59 and earlier are vulnerably to information disclosure,     SSRF or local script execution viabackend applications whose response headers are malicious or     exploitable.Users are recommended to upgrade to version 2.4.60, which fixes this issue.(CVE-2024-38476)

    Substitution encoding issue in mod_rewrite in Apache HTTP Server 2.4.59 and earlier allows attacker to     execute scripts in directories permitted by the configuration but not directly reachable by anyURL or     source disclosure of scripts meant to only to be executed as CGI. Users are recommended to upgrade to     version 2.4.60, which fixes this issue.Some RewriteRules that capture and substitute unsafely will now     fail unless rewrite flag 'UnsafeAllow3F' is specified.(CVE-2024-38474)

    Improper escaping of output in mod_rewrite in Apache HTTP Server 2.4.59 and earlier allows an attacker to     map URLs to filesystem locations that arepermitted to be served by the server but are not     intentionally/directly reachable by any URL, resulting in code execution or source code disclosure.
    Substitutions inserver context that use a backreferences or variables as the first segment of the     substitution are affected. Some unsafe RewiteRules will be broken by this change and the rewrite flag     'UnsafePrefixStat' can be used to opt back in once ensuring the substitution is appropriately     constrained.(CVE-2024-38475)

Tenable has extracted the preceding description block directly from the EulerOS Virtualization httpd security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote host is running a version of macOS / Mac OS X that is 15.x prior to 15.1. It is, therefore, affected by multiple vulnerabilities:

  - The issue was addressed with improved bounds checks. This issue is fixed in iOS 18.1 and iPadOS 18.1. An     attacker may be able to cause unexpected system termination or arbitrary code execution in DCP firmware.
    (CVE-2024-44241, CVE-2024-44242, CVE-2024-44299)

  - Vulnerability in core of Apache HTTP Server 2.4.59 and earlier are vulnerably to information disclosure,     SSRF or local script execution via backend applications whose response headers are malicious or     exploitable. Users are recommended to upgrade to version 2.4.60, which fixes this issue. (CVE-2024-38476)

  - null pointer dereference in mod_proxy in Apache HTTP Server 2.4.59 and earlier allows an attacker to crash     the server via a malicious request. Users are recommended to upgrade to version 2.4.60, which fixes this     issue. (CVE-2024-38477)

  - Potential SSRF in mod_rewrite in Apache HTTP Server 2.4.59 and earlier allows an attacker to cause unsafe     RewriteRules to unexpectedly setup URL's to be handled by mod_proxy. Users are recommended to upgrade to     version 2.4.60, which fixes this issue. (CVE-2024-39573)

  - A memory initialization issue was addressed with improved memory handling. This issue is fixed in iOS 18.1     and iPadOS 18.1, iOS 17.7.1 and iPadOS 17.7.1, macOS Sonoma 14.7.1, macOS Ventura 13.7.1. An app may be     able to cause unexpected system termination. (CVE-2024-40854)

Note that Nessus has not tested for these issues but has instead relied only on the operating system's self-reported version number.

The remote Ubuntu 16.04 LTS / 18.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-6885-3 advisory.

    USN-6885-1 fixed several vulnerabilities in Apache. This update provides the corresponding update for     Ubuntu 16.04 LTS and Ubuntu 18.04 LTS.



Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2024:4726 advisory.

    The httpd packages provide the Apache HTTP Server, a powerful, efficient, and extensible web server.

    Security Fix(es):

    * httpd: Improper escaping of output in mod_rewrite (CVE-2024-38475)

    * httpd: Substitution encoding issue in mod_rewrite (CVE-2024-38474)

    * httpd: null pointer dereference in mod_proxy (CVE-2024-38477)

    * httpd: Potential SSRF in mod_rewrite (CVE-2024-39573)

    * httpd: Encoding problem in mod_proxy (CVE-2024-38473)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Fedora 39 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2024-e7e73befad advisory.

    - version update
    - security update

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2024:4938 advisory.

    The httpd packages provide the Apache HTTP Server, a powerful, efficient, and extensible web server.

    Security Fix(es):

    * httpd: Substitution encoding issue in mod_rewrite (CVE-2024-38474)

    * httpd: Improper escaping of output in mod_rewrite (CVE-2024-38475)

    * httpd: NULL pointer dereference in mod_proxy (CVE-2024-38477)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:2686-1 advisory.

    This update for apache2 fixes the following issues

    - CVE-2026-23918: http2: double free and possible RCE on early reset (bsc#1263957).
    - CVE-2026-24072: mod_rewrite elevation of privileges via ap_expr (bsc#1263935).
    - CVE-2026-28780: heap buffer overflow in `mod_proxy_ajp` via `ajp_msg_check_header()` (bsc#1264163).
    - CVE-2026-29167: mod_ldap per-dir use-after-free (bsc#1267976).
    - CVE-2026-29168: allocation of resources without limits in `mod_md` via OCSP response (bsc#1264150).
    - CVE-2026-29169: NULL pointer dereference in `mod_dav_lock` allows server crash via malicious requests     (bsc#1263956).
    - CVE-2026-29170: mod_proxy_ftp XSS (bsc#1267977).
    - CVE-2026-33006: `mod_auth_digest` timing attack allows bypass of Digest authentication (bsc#1263955).
    - CVE-2026-33007: NULL pointer dereference in `mod_authn_socache` allows unauthenticated remote user to     crash a child       processes (bsc#1263954).
    - CVE-2026-33523: HTTP response splitting forwarding malicious status line (bsc#1263953).
    - CVE-2026-33857: off-by-one OOB reads in AJP getter functions (bsc#1263952).
    - CVE-2026-34032: heap buffer overread in `mod_proxy_ajp` due to missing null-termination check     (bsc#1263951).
    - CVE-2026-34059: heap buffer overread and memory disclosure via `ajp_parse_data()` (bsc#1263950).
    - CVE-2026-34355: mod_proxy_html buffer overflow (bsc#1267978).
    - CVE-2026-34356: malicious backend servers can lead to a heap-based buffer overflow (bsc#1267955).
    - CVE-2026-42535: malicious path manipulation can lead to child process crashes (bsc#1267956).
    - CVE-2026-42536: processing untrusted content can lead to a heap-based buffer overflow (bsc#1267962).
    - CVE-2026-43951: out-of-bound read in `merge_response_headers` can cause crash (bsc#1267963).
    - CVE-2026-44119: improper privilege management can lead to an unauthorized read (bsc#1267965).
    - CVE-2026-44185: Stack Buffer Over-Read in mod_ssl OCSP `send_request` (bsc#1267969).
    - CVE-2026-44186: responses from an attacker-controlled FTP backend can lead to resource exhaustion and a     denial of       service (bsc#1267970).
    - CVE-2026-44631: crafted regular expression can lead to a buffer underwrite (bsc#1267971).
    - CVE-2026-48913: file handle exhaustion during request processing in mod_http2 can lead to a use-after-     free       (bsc#1267972).
    - CVE-2026-49975: Fix cookie header accounting against LimitRequestFields (bsc#1267503).

    Non security issue:

    - Update to 2.4.66 (jsc#PED-16334).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS / 20.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-8338-1 advisory.

    It was discovered that Apache HTTP Server incorrectly handled certain response headers. An attacker could     possibly use this issue to perform HTTP response splitting attacks. This issue only affected Ubuntu 14.04     LTS. (CVE-2023-38709)

    Will Dormann and David Warren discovered that Apache HTTP Server's HTTP/2 implementation did not properly     reclaim memory when streams were reset by clients. A remote attacker could possibly use this issue to     cause Apache HTTP Server to consume resources, leading to a denial of service. This issue only affected     Ubuntu 18.04 LTS. (CVE-2023-45802)

    Keran Mu and Jianjun Chen discovered that Apache HTTP Server incorrectly handled certain response headers.
    An attacker could possibly use this issue to perform HTTP response splitting attacks. This issue only     affected Ubuntu 14.04 LTS. (CVE-2024-24795)

    Orange Tsai discovered that Apache HTTP Server mod_proxy incorrectly handled URL encoding. A remote     attacker could possibly use this issue to bypass authentication via crafted requests. This issue only     affected Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. (CVE-2024-38473)

    Orange Tsai discovered that Apache HTTP Server could be caused to perform server-side request forgery     (SSRF) via malicious backend response headers. A remote attacker could possibly use this issue to conduct     SSRF attacks or disclose sensitive information. This issue only affected Ubuntu 14.04 LTS.
    (CVE-2024-38476)

    Orange Tsai discovered that Apache HTTP Server mod_proxy did not properly handle certain null pointer     conditions. A remote attacker could possibly use this issue to cause Apache HTTP Server to crash,     resulting in a denial of service. This issue only affected Ubuntu 14.04 LTS. (CVE-2024-38477)

    Orange Tsai discovered that Apache HTTP Server mod_rewrite could be made to perform server-side request     forgery (SSRF) via unsafe RewriteRules. A remote attacker could possibly use this issue to conduct SSRF     attacks. This issue only affected Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. (CVE-2024-39573)

    It was discovered that Apache HTTP Server incorrectly handled certain response headers. An attacker could     possibly use this issue to perform HTTP response splitting attacks. This issue only affected Ubuntu 14.04     LTS. (CVE-2024-42516)

    It was discovered that Apache HTTP Server could be caused to perform server-side request forgery (SSRF)     via mod_headers modifying Content-Type headers. A remote attacker could possibly use this issue to conduct     SSRF attacks. This issue only affected Ubuntu 14.04 LTS. (CVE-2024-43204)

    John Runyon discovered that Apache HTTP Server mod_ssl did not properly escape user-supplied data before     writing log entries. A remote attacker could possibly use this issue to insert escape sequences into log     files. This issue only affected Ubuntu 14.04 LTS. (CVE-2024-47252)

    Robert Merget discovered that Apache HTTP Server with SSLEngine optional was vulnerable to HTTP     desynchronisation attacks. An attacker in a privileged network position could possibly use this issue to     hijack HTTP sessions. This issue only affected Ubuntu 14.04 LTS. (CVE-2025-49812)

    It was discovered that Apache HTTP Server mod_md had an integer overflow in the ACME certificate renewal     backoff timer. An attacker could possibly use this issue to cause excessive certificate renewal requests.
    This issue only affected Ubuntu 20.04 LTS. (CVE-2025-55753)

    Anthony Parfenov discovered that Apache HTTP Server with SSI enabled and mod_cgid passed shell-escaped     query strings to #exec cmd directives. A remote attacker could possibly use this issue to perform command     injection. (CVE-2025-58098)

    Mattias sander discovered that Apache HTTP Server incorrectly gave precedence to environment variables     from HTTP headers over server-calculated CGI variables. A remote attacker could possibly use this issue to     influence the environment of CGI programs. (CVE-2025-65082)

    Mattias sander discovered that Apache HTTP Server mod_userdir with suexec could be caused to run CGI     scripts under an unexpected user ID via RequestHeader directives in .htaccess files. An attacker with     .htaccess write access could possibly use this issue to bypass suexec user restrictions. (CVE-2025-66200)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Published	Updated	Severity
208321	EulerOS 2.0 SP12 : httpd (EulerOS-SA-2024-2529)	Nessus	Huawei Local Security Checks	10/9/2024	5/2/2025	critical
209763	EulerOS Virtualization 2.12.1 : httpd (EulerOS-SA-2024-2751)	Nessus	Huawei Local Security Checks	10/27/2024	5/2/2025	critical
209779	EulerOS Virtualization 2.12.0 : httpd (EulerOS-SA-2024-2769)	Nessus	Huawei Local Security Checks	10/27/2024	5/2/2025	critical
211696	macOS 15.x < 15.1 Multiple Vulnerabilities (121564)	Nessus	MacOS X Local Security Checks	11/21/2024	1/19/2026	critical
207382	Ubuntu 16.04 LTS / 18.04 LTS : Apache HTTP Server vulnerabilities (USN-6885-3)	Nessus	Ubuntu Local Security Checks	9/18/2024	5/2/2025	critical
203134	RHEL 9 : httpd (RHSA-2024:4726)	Nessus	Red Hat Local Security Checks	7/23/2024	5/2/2025	critical
204703	Fedora 39 : httpd (2024-e7e73befad)	Nessus	Fedora Local Security Checks	7/25/2024	5/2/2025	critical
204874	RHEL 7 : httpd (RHSA-2024:4938)	Nessus	Red Hat Local Security Checks	7/31/2024	5/2/2025	critical
324047	SUSE SLES15: apache2 / apache2-devel / apache2-doc / apache2-prefork / etc (SUSE-SU-2026:2686-1)	Nessus	SuSE Local Security Checks	7/1/2026	7/1/2026	high
320481	Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS / 20.04 LTS : Apache HTTP Server vulnerabilities (USN-8338-1)	Nessus	Ubuntu Local Security Checks	6/11/2026	6/11/2026	critical

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