In mutt and neomutt the In-Reply-To email header field is not protected by cryptographic signing which allows an attacker to reuse an unencrypted but signed email message to impersonate the original sender.

The AlmaLinux 9.2 host has a package installed that is affected by a vulnerability as referenced in the TuxCare ALMALINUX9.2:CLSA-2026:1783434809 advisory.

  - In mutt and neomutt the In-Reply-To email header field is not protected by cryptographic signing which     allows an attacker to reuse an unencrypted but signed email message to impersonate the original sender.
    (CVE-2024-49394)

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

The Rocky Linux 9.6 host has a package installed that is affected by a vulnerability as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1783436433 advisory.

  - In mutt and neomutt the In-Reply-To email header field is not protected by cryptographic signing which     allows an attacker to reuse an unencrypted but signed email message to impersonate the original sender.
    (CVE-2024-49394)

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

The AlmaLinux 9.6 host has a package installed that is affected by a vulnerability as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1783436433 advisory.

  - In mutt and neomutt the In-Reply-To email header field is not protected by cryptographic signing which     allows an attacker to reuse an unencrypted but signed email message to impersonate the original sender.
    (CVE-2024-49394)

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

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - In mutt and neomutt the In-Reply-To email header field is not protected by cryptographic signing which     allows an attacker to reuse an unencrypted but signed email message to impersonate the original sender.
    (CVE-2024-49394)

Note that Nessus relies on the presence of the package as reported by the vendor.

The remote Ubuntu 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-7204-1 advisory.

    Jeriko One discovered that NeoMutt incorrectly handled certain IMAP and POP3 responses. An attacker could     possibly use this issue to cause NeoMutt to crash, resulting in a denial of service, or the execution of     arbitrary code. This issue only affected Ubuntu 18.04 LTS. (CVE-2018-14349, CVE-2018-14350,     CVE-2018-14351, CVE-2018-14352, CVE-2018-14353, CVE-2018-14354, CVE-2018-14355, CVE-2018-14356,     CVE-2018-14357, CVE-2018-14358, CVE-2018-14359, CVE-2018-14362)

    Jeriko One discovered that NeoMutt incorrectly handled certain NNTP-related operations. An attacker could     possibly use this issue to cause NeoMutt to crash, resulting in denial of service, or the execution of     arbitrary code. This issue only affected Ubuntu 18.04 LTS. (CVE-2018-14360, CVE-2018-14361,     CVE-2018-14363)

    It was discovered that NeoMutt incorrectly processed additional data when communicating with mail servers.
    An attacker could possibly use this issue to access senstive information. This issue only affected Ubuntu     18.04 LTS and Ubuntu 20.04 LTS. (CVE-2020-14954, CVE-2020-28896)

    It was discovered that Neomutt incorrectly handled the IMAP QRSync setting. An attacker could possibly use     this issue to cause NeoMutt to crash, resulting in denial of service. This issue only affected Ubuntu     20.04 LTS. (CVE-2021-32055)

    Tavis Ormandy discovered that NeoMutt incorrectly parsed uuencoded text past the length of the string. An     attacker could possibly use this issue to enable the execution of arbitrary code. This issue only affected     Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, and Ubuntu 22.04 LTS. (CVE-2022-1328)

    It was discovered that NeoMutt did not properly encrypt email headers. An attacker could possibly use this     issue to receive emails that were not intended for them and access sensitive information. This     vulnerability was only fixed in Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, and Ubuntu 24.04 LTS. (CVE-2024-49393,     CVE-2024-49394)

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	Type	Severity
360161	AlmaLinux 9.2 [TuxCare] Security Update: mutt (ALMALINUX9.2:CLSA-2026:1783434809)	Nessus	Alma Linux Local Security Checks	Local	medium
353229	Rocky Linux 9.6 [TuxCare] Security Update: mutt (ALMALINUX9.6:CLSA-2026:1783436433)	Nessus	Rocky Linux Local Security Checks	Local	medium
353132	AlmaLinux 9.6 [TuxCare] Security Update: mutt (ALMALINUX9.6:CLSA-2026:1783436433)	Nessus	Alma Linux Local Security Checks	Local	medium
231427	Linux Distros Unpatched Vulnerability : CVE-2024-49394	Nessus	Misc.	Local	medium
214221	Ubuntu 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS : NeoMutt vulnerabilities (USN-7204-1)	Nessus	Ubuntu Local Security Checks	Local	critical

Detections

Analytics

CVE-2024-49394

medium

Tenable Plugins

medium

medium

medium

medium

critical