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No exploitation reportedFix availableAwaiting NVD analysis

CVE-2026-114691

Gcc: integer wrap in `std

No exploitation reported by the sources we read.

  • Published2026-10-30
  • WeaknessCWE-190

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

A flaw was found in the libstdc++ component of GCC. An attacker who can provide an excessively large element count to a boolean vector (std::vector<bool>) constructor can trigger an integer wrap during internal memory calculations. This issue leaves the container in an inconsistent state, leading to out-of-bounds memory access and resulting in an application crash or a Denial of Service (DoS) during subsequent operations.

Timeline

dates in UTC
  1. 2026-10-3007:13CVE publishedCNA

Versions per branch

Products declared by the CNA59 products

As redhat, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

53 more products in the CVE record.

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2026-11-06

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • gccAzure Linux:3all versions · no fixed version listed
  • gcc-11Ubuntu:26.10all versions · no fixed version listedand 16 other packages
  • gcc-11Ubuntu:26.04:LTSall versions · no fixed version listedand 16 other packages
  • gcc-11Debian:12all versions · no fixed version listedand 1 other package
  • gcc-12Echoall versions · fixed in 12.5.0-11+e2
  • gcc-12Debian:14all versions · no fixed version listedand 4 other packages
  • gcc-12Debian:13all versions · no fixed version listedand 2 other packages
  • gcc-14Echoall versions · fixed in 14.2.0-19+e4

14 more package ranges on OSV.dev

Vendor advisories

  • CVE-2026-114691 Red Hat Product Security214 known affected

    gcc: Integer wrap in `std

    cpp as a component of Red Hat Enterprise Linux 10 · gcc-c++ as a component of Red Hat Enterprise Linux 10 · gcc-gfortran as a component of Red Hat Enterprise Linux 10 · +211 more

Full record on NVD

Fix

  1. Workaround from the vendor Red Hat Product Security CVE-2026-114691 · 214 productsMitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
  2. No fix available, says the vendor Red Hat Product Security CVE-2026-114691 · 149 productsFix deferred
  3. No fix available, says the vendor Red Hat Product Security CVE-2026-114691 · 65 productsAffected

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

  • CISA-ADPSSVC decisionnone2026-10-30
  • OpenCVESSVC decisionnoneknown since 2026-10-30
  • CNACVSS 3.15.92026-11-06
  • NVDCVSS 3.15.9read 2026-11-06
  • CNAweakness (CWE)CWE-1902026-11-06
  • NVDweakness (CWE)CWE-190read 2026-11-06
  • FIRST EPSSEPSS score0.4 %2026-11-08
  • OSVaffected packages—
  • GitHub Advisoriesadvisory—

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Published
2026-10-30
Last Modified
2026-11-06
NVD status
Awaiting Analysis
GitHub Advisory
GHSA-775q-m9j7-gg3x

Frequently asked questions

What is CVE-2026-114691?

A flaw was found in the libstdc++ component of GCC. An attacker who can provide an excessively large element count to a boolean vector (std::vector<bool>) constructor can trigger an integer wrap during internal memory calculations. This issue leaves the container in an inconsistent state, leading to out-of-bounds memory access and resulting in an application crash or a Denial of Service (DoS) during subsequent operations.

Is CVE-2026-114691 actively exploited?

Active exploitation of CVE-2026-114691 has not been confirmed. Its EPSS score was 0.4% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-114691?

CVE-2026-114691 has a CVSS v3 base score of 5.9 (MEDIUM severity), with vector string CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H.

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