CVE-2026-95619

Description

A flaw was found in libstdc++. An integer overflow can occur when processing large inputs to the aligned operator new in the C++ library. This vulnerability could lead to an undersized memory allocation, potentially causing memory corruption or application instability.

Overview

State: PUBLISHED
Assigner (CNA): redhat
CVSS severity: HIGH
CVSS score: 7.7 / 10
CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:H
Effective score: 7.7 / 10 HIGH source: CNA overview
CWE(s): CWE-190
Reserved: 2026-09-22
Published: 2026-09-22 12:52 UTC
Last updated: 2026-09-22 17:57 UTC
Source: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/95xxx/CVE-2026-95619.json
Linked Threat: CVE-2026-95619 — Gcc: libstdc++ integer overflow in `new` operator

NVD triage scoring NVD CVE 2.0

Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.

NVD published: 2026-09-22 13:17:13 UTC
NVD last modified: 2026-09-22 19:37:36 UTC
NVD CVSS v3.1: 7.7 / 10 HIGH source: secalert@redhat.com
NVD CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:H
Exploitability subscore: 2.2 / 10
Impact subscore: 5.5 / 10

European Union Vulnerability Database ENISA EUVD

ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.

EUVD ID: EUVD-2026-84373
Assigner: redhat
Published: Sep 22, 2026, 12:52:02 PM
Updated: Sep 22, 2026, 5:57:31 PM
EUVD base score (CVSS 3.1): 7.7 / 10
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:H
EUVD-reported EPSS: 0.0000
Vendors: Red Hat
Products: Red Hat Hardened Images (patch: 16.2.1-2.hum1)

Red Hat Hardened Images (patch: 13.5.0-0.1.hum1)
Aliases: GHSA-9cg4-x5gg-7ww7

ENISA description: A flaw was found in libstdc++. An integer overflow can occur when processing large inputs to the aligned operator new in the C++ library. This vulnerability could lead to an undersized memory allocation, potentially causing memory corruption or application instability.

EUVD references (4)

Affected products (20)

Vendor	Product	Versions	Platforms
Red Hat	Red Hat Hardened Images	`16.2.1-2.hum1` (unaffected)	—
Red Hat	Red Hat Hardened Images	`13.5.0-0.1.hum1` (unaffected)	—
Red Hat	Red Hat Enterprise Linux 10	—	—
Red Hat	Red Hat Enterprise Linux 10	—	—
Red Hat	Red Hat Enterprise Linux 6	—	—
Red Hat	Red Hat Enterprise Linux 6	—	—
Red Hat	Red Hat Enterprise Linux 6	—	—
Red Hat	Red Hat Enterprise Linux 6	—	—
Red Hat	Red Hat Enterprise Linux 6	—	—
Red Hat	Red Hat Enterprise Linux 7	—	—
Red Hat	Red Hat Enterprise Linux 7	—	—
Red Hat	Red Hat Enterprise Linux 7	—	—
Red Hat	Red Hat Enterprise Linux 7	—	—
Red Hat	Red Hat Enterprise Linux 8	—	—
Red Hat	Red Hat Enterprise Linux 8	—	—
Red Hat	Red Hat Enterprise Linux 8	—	—
Red Hat	Red Hat Enterprise Linux 9	—	—
Red Hat	Red Hat Enterprise Linux 9	—	—
Red Hat	Red Hat OpenShift Container Platform 4	—	—
Red Hat	Red Hat OpenShift Container Platform 4	—	—

Vendor references (4)

References embedded in the original CVE record by the assigning CNA.

RHSA-2026:58503 vendor-advisoryx_refsource_REDHAT
RHSA-2026:67275 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2026-95619 vdb-entryx_refsource_REDHAT
RHBZ#2537811 issue-trackingx_refsource_REDHAT

Web references (0)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

No web references attached yet.

NVD-tagged references (4)

Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.

https://access.redhat.com/errata/RHSA-2026:58503 secalert@redhat.com
https://access.redhat.com/errata/RHSA-2026:67275 secalert@redhat.com
https://access.redhat.com/security/cve/CVE-2026-95619 secalert@redhat.com
https://bugzilla.redhat.com/show_bug.cgi?id=2537811 secalert@redhat.com

Remediations (10)

Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.

CVE-2026-95619: Red Hat Integer Overflow (CVSS 7.7) | CVETodo

web:cvetodo.com

CVE-2026-95619 is a CVSS 7.7 Integer Overflow vulnerability in Red Hat Hardened Images. Includes technical details, affected versions, and mitigation steps.

2026-09-23 15:13 UTC
CVE-2026-95619: Product identification pending

web:itknowledgebases.com

A CVE (Common Vulnerabilities and Exposures) advisory is a public disclosure of a security vulnerability assigned a unique identifier by MITRE. Advisories include severity scores (CVSS), affected versions, and remediation guidance. Monitoring CVE advisories is a core function of vulnerability management programs and SOC operations.

2026-09-23 15:13 UTC
Security Update Guide - Microsoft

web:msrc-ppe.microsoft.com

The Microsoft Security Response Center (MSRC) investigates all reports of security vulnerabilities affecting Microsoft products and services, and provides the information here as part of the ongoing effort to help you manage security risks and help keep your systems protected.

2026-09-23 15:13 UTC
Security Update Guide - Microsoft Security Response Center

web:msrc.microsoft.com

Security Update Guide - Microsoft Security Response Center

2026-09-23 15:13 UTC
Cisco Advance Notification for Publication of September 16, 2026 ...

web:sec.cloudapps.cisco.com

On September 16, 2026 , the Cisco Product Security Incident Response Team (PSIRT) published the advisories that are listed in the following tables. To remediate these vulnerabilities, Cisco strongly recommends that customers upgrade to the fixed software that is indicated in the advisories. For more information about changes in Cisco PSIRT vulnerability disclosure, see Strengthening the ...

2026-09-23 15:13 UTC
CVE-2026-95619 : Integer Overflow Vulnerability in libstdc++ Affecting ...

web:securityvulnerability.io

What is CVE-2026-95619 ? A flaw in libstdc++ allows for an integer overflow when large inputs are processed by the C++ new operator. This could result in an undersized memory allocation, leading to potential memory corruption and instability of applications relying on this component.

2026-09-23 15:13 UTC
Microsoft Patch Tracker (September 2026): Exploit-Ranked | Senserva

web:senserva.com

Every Microsoft security patch (KB) and the CVEs it fixes, with severity, CVSS, and CISA KEV status. Cross-linked to the CVE reference.

2026-09-23 15:13 UTC
Description of the security update for Office 2016: August 11, 2026 ...

web:support.microsoft.com

Be aware that the update in the Microsoft Download Center applies to the Microsoft Installer (.msi)-based edition of Office 2016. It doesn't apply to the Office 2016 Click-to-Run editions, such as Microsoft Office 365 Home. (See What version of Office am I using?) How to get and install the update Method 1: Microsoft Update This update is available from Microsoft Update. When you turn on ...

2026-09-23 15:13 UTC
August 2026 CVE Advisory Notification - Security

web:support.servicenow.com

Due to additional analysis provided by the security researcher who discovered CVE - 2026 -6876, we have upgraded the severity rating of CVE - 2026 -6876 from High to Critical. This change affects only the severity

2026-09-23 15:13 UTC
Oracle Critical Patch Update Advisory - July 2026

web:www.oracle.com

This Critical Patch Update contains 1448 new security patches across the product families listed below. Please note that a My Oracle Support (MOS) note summarizing the content of this Critical Patch Update and other Oracle Software Security Assurance activities is located at July 2026 Critical Patch Update: Executive Summary and Analysis.

2026-09-23 15:13 UTC

AI Forensic Analysis

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Raw JSON

The full cvelistV5 record. Download as CVE-2026-95619.json.

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