RHEL 9 : gcc (RHSA-2026:98524)

medium Nessus Plugin ID 378855

Synopsis

The remote Red Hat host is missing one or more security updates for gcc.

Description

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:98524 advisory.

The gcc packages provide compilers for C, C++, Java, Fortran, Objective C, and Ada 95 GNU, as well as related support libraries.

Security Fix(es):

* gcc: Integer wrap in `std (CVE-2026-114691)

* gcc: Confirmed out-of-bounds read/write in libstdc++ parallel `std (CVE-2026-114690)

* gcc: Out-of-bounds read in std::from_chars (CVE-2026-115456)

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.

Solution

Update the RHEL gcc package based on the guidance in RHSA-2026:98524.

Plugin Details

Severity: Medium

ID: 378855

File Name: redhat-RHSA-2026-98524.nasl

Version: 1.1

Type: Local

Agent: unix

Family: Red Hat Local Security Checks

Published: 11/11/2026

Updated: 11/11/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.79

Vendor

Vendor Severity: Moderate

CVSS v2

Risk Factor: Medium

Base Score: 5.4

Temporal Score: 4

Vector: CVSS2#AV:N/AC:H/Au:N/C:N/I:N/A:C

CVSS Score Source: CVE-2026-114691

CVSS v3

Risk Factor: Medium

Base Score: 6.2

Temporal Score: 5.4

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS Score Source: CVE-2026-114690

Vulnerability Information

CPE: cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:redhat:enterprise_linux:cpp, p-cpe:/a:redhat:enterprise_linux:gcc-c%2b%2b, p-cpe:/a:redhat:enterprise_linux:gcc-gfortran, p-cpe:/a:redhat:enterprise_linux:gcc-offload-nvptx, p-cpe:/a:redhat:enterprise_linux:gcc-plugin-annobin, p-cpe:/a:redhat:enterprise_linux:gcc-plugin-devel, p-cpe:/a:redhat:enterprise_linux:gcc, p-cpe:/a:redhat:enterprise_linux:libasan, p-cpe:/a:redhat:enterprise_linux:libatomic, p-cpe:/a:redhat:enterprise_linux:libgcc, p-cpe:/a:redhat:enterprise_linux:libgccjit-devel, p-cpe:/a:redhat:enterprise_linux:libgccjit, p-cpe:/a:redhat:enterprise_linux:libgfortran-static, p-cpe:/a:redhat:enterprise_linux:libgfortran, p-cpe:/a:redhat:enterprise_linux:libgomp-offload-nvptx, p-cpe:/a:redhat:enterprise_linux:libgomp, p-cpe:/a:redhat:enterprise_linux:libitm-devel, p-cpe:/a:redhat:enterprise_linux:libitm, p-cpe:/a:redhat:enterprise_linux:liblsan, p-cpe:/a:redhat:enterprise_linux:libquadmath-devel, p-cpe:/a:redhat:enterprise_linux:libquadmath-static, p-cpe:/a:redhat:enterprise_linux:libquadmath, p-cpe:/a:redhat:enterprise_linux:libstdc%2b%2b-devel, p-cpe:/a:redhat:enterprise_linux:libstdc%2b%2b-docs, p-cpe:/a:redhat:enterprise_linux:libstdc%2b%2b-static, p-cpe:/a:redhat:enterprise_linux:libstdc%2b%2b, p-cpe:/a:redhat:enterprise_linux:libtsan, p-cpe:/a:redhat:enterprise_linux:libubsan

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Ease: No known exploits are available

Patch Publication Date: 11/11/2026

Vulnerability Publication Date: 10/30/2026

Reference Information

CVE: CVE-2026-114690, CVE-2026-114691, CVE-2026-115456

CWE: 125, 190, 787

RHSA: 2026:98524

Detections

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