pcre2test.c in PCRE2 10.23 allows remote attackers to cause a denial of service (heap-based buffer overflow) or possibly have unspecified other impact via a crafted regular expression.

The Rocky Linux 9.2 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ ciqsa-2026_1737 advisory.

    This advisory aggregates security fixes for the pcre2 SRPM in CIQ LTS 9.2. It addresses 6 CVEs:
    CVE-2026-89161, CVE-2016-3191, CVE-2017-8786, CVE-2026-86145, CVE-2017-7186, and 1 more.

Tenable has extracted the preceding description block directly from the CIQ 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 Rocky Linux 9.6 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ ciqsa-2026_1722 advisory.

    This advisory aggregates security fixes for the pcre2 SRPM in CIQ LTS 9.6. It addresses 4 CVEs:
    CVE-2016-3191, CVE-2017-8786, CVE-2026-86145, CVE-2026-89158.

Tenable has extracted the preceding description block directly from the CIQ 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 Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - pcre2test.c in PCRE2 10.23 allows remote attackers to cause a denial of service (heap-based buffer     overflow) or possibly have unspecified other impact via a crafted regular expression. (CVE-2017-8786)

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

According to the version of the pcre2 package installed, the EulerOS installation on the remote host is affected by the following vulnerability :

  - pcre2test.c in PCRE2 10.23 allows remote attackers to     cause a denial of service (heap-based buffer overflow)     or possibly have unspecified other impact via a crafted     regular expression.(CVE-2017-8786)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote host is affected by the vulnerability described in GLSA-201710-09 (PCRE2: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in PCRE2. Please review       the referenced CVE identifiers for details.
  Impact :

    A remote attacker could possibly execute arbitrary code with the       privileges of the process, cause a Denial of Service condition, or have       other unspecified impacts.
  Workaround :

    There is no known workaround at this time.

ID	Name	Product	Family	Type	Severity
374527	Rocky Linux 9.2 [CIQ] Security Update: pcre2 / pcre2-devel / pcre2-syntax / pcre2-utf16 / pcre2-utf32 Multiple Vulnerabilities (ciqsa-2026_1737)	Nessus	Rocky Linux Local Security Checks	Local	critical
372458	Rocky Linux 9.6 [CIQ] Security Update: pcre2 / pcre2-devel / pcre2-syntax / pcre2-tools / pcre2-utf16 / etc Multiple Vulnerabilities (ciqsa-2026_1722)	Nessus	Rocky Linux Local Security Checks	Local	critical
221539	Linux Distros Unpatched Vulnerability : CVE-2017-8786	Nessus	Misc.	Local	critical
129177	EulerOS 2.0 SP5 : pcre2 (EulerOS-SA-2019-1983)	Nessus	Huawei Local Security Checks	Local	critical
103727	GLSA-201710-09 : PCRE2: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	Local	critical

Detections

Analytics

CVE-2017-8786

critical

Tenable Plugins

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