CVE-2026-95818

Description

A stack-based buffer overflow in the dynamic loader (ld.so) of the GNU C Library (glibc) versions 2.14 through 2.44 allows a local attacker to crash or corrupt the memory of setuid/setgid (AT_SECURE) programs. When such a program's DT_RPATH or DT_RUNPATH begins with $ORIGIN and is followed by NUL or '/' the loader both reads past the end of the path buffer and writes past the end of a stack-allocated internal buffer. The corrupted loader stack can lead to a loader crash (denial of service) and limited disclosure of process memory.

Overview

State: PUBLISHED
Assigner (CNA): glibc
CVSS severity: LOW
CVSS score: 3.6 / 10
CVSS vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
Effective score: 3.6 / 10 LOW source: CNA overview
MSRC score: 3.6 / 10 LOW MS rating: Low
CWE(s): CWE-121
Reserved: 2026-09-22
Published: 2026-09-22 16:50 UTC
Last updated: 2026-09-22 18:21 UTC
Source: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/95xxx/CVE-2026-95818.json

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 17:17:32 UTC
NVD last modified: 2026-09-22 19:56:19 UTC
NVD CVSS v3.1: 3.6 / 10 LOW source: 3ff69d7a-14f2-4f67-a097-88dee7810d18
NVD CVSS vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
Exploitability subscore: 1.0 / 10
Impact subscore: 2.5 / 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-2026-84558
Assigner: glibc
Published: Sep 22, 2026, 4:50:07 PM
Updated: Sep 22, 2026, 6:21:56 PM
EUVD base score (CVSS 3.1): 3.6 / 10
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
EUVD-reported EPSS: 0.0000
Vendors: The GNU C Library
Products: glibc (2.14 <2.45)
Aliases: GHSA-h8x4-734c-9753

ENISA description: A stack-based buffer overflow in the dynamic loader (ld.so) of the GNU C Library (glibc) versions 2.14 through 2.44 allows a local attacker to crash or corrupt the memory of setuid/setgid (AT_SECURE) programs. When such a program's DT_RPATH or DT_RUNPATH begins with $ORIGIN and is followed by NUL or '/' the loader both reads past the end of the path buffer and writes past the end of a stack-allocated internal buffer. The corrupted loader stack can lead to a loader crash (denial of service) and limited disclosure of process memory.

EUVD references (2)

Microsoft Security Response Center MSRC

Microsoft's vendor-authoritative record from the Security Update Guide — its own CVSS score, impact, severity rating, exploit assessment, and KB-article fixes. Refreshed 2026-09-26 03:08 UTC (source: CVRF).

MS severity: Low
MS CVSS base score: 3.6 / 10 (temporal 3.6)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
Release: 2026-Sep

Microsoft remediations / KB articles (2)

Release Notes — Vendor Fix / Security Update
https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade — None Available / Release Notes

Affected products (1)

Vendor	Product	Versions	Platforms
The GNU C Library	glibc	`2.14` (affected)	—

Vendor references (2)

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

https://sourceware.org/bugzilla/show_bug.cgi?id=34360 issue-tracking
https://sourceware.org/git/?p=glibc.git;a=blob_plain;f=advisories/GLIBC-SA-2026-0023 vendor-advisory

Web references (2)

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

None Available msrc
MSRC update guide: CVE-2026-95818 msrc

NVD-tagged references (2)

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://sourceware.org/bugzilla/show_bug.cgi?id=34360 3ff69d7a-14f2-4f67-a097-88dee7810d18
https://sourceware.org/git/?p=glibc.git;a=blob_plain;f=advisories/GLIBC-SA-2026-0023 3ff69d7a-14f2-4f67-a097-88dee7810d18

Remediations (10)

CVE-2026-95818 - AT_SECURE program buffer overflow via $ORIGIN processing

web:cvefeed.io

The following list is the news that have been mention CVE-2026-95818 vulnerability anywhere in the article. Results are limited to the first 20 news articles due to potential performance issues. The following table lists the changes that have been made to the CVE-2026-95818 vulnerability over time.

2026-09-23 15:40 UTC
Security Update Guide - Microsoft

web:msrc.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 15:40 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 15:40 UTC
July 18, 2026—Hotpatch KB5121768 (OS Builds 26200.8893 and 26100.8893 ...

web:support.microsoft.com

This out-of-band (OOB) update for Windows 11, version 25H2 and Windows 11, version 24H2 (KB5121768) is cumulative. It includes all improvements from previous security and non-security updates, along with an additional fix . Improvements This OOB update includes the following improvement: [System Performance] This update addresses an issue affecting a limited number of devices with an Intel ...

2026-09-23 15:40 UTC
January 24, 2026—KB5078127 (OS Builds 26200.7628 and 26100.7628) Out-of ...

web:support.microsoft.com

This out-of-band update for Windows 11, version 25H2 and 24H2 (KB5078127) is cumulative. It includes updates from previous security and non-security releases, along with an additional fix . To learn more about differences between security updates, optional non-security preview updates, out-of-band (OOB) updates, and continuous innovation, see Windows monthly updates explained. For information ...

2026-09-23 15:40 UTC
N-able N-central Pre-Auth RCE Flaw Exploited in the Wild

web:thehackernews.com

CISA added actively exploited N-able N-central CVE - 2026 -86218 to KEV, with federal agencies ordered to patch by September 11.

2026-09-23 15:40 UTC
N-able patches max severity N-central flaw amid ongoing attacks

web:www.bleepingcomputer.com

N-able has released an emergency hotfix for a maximum-severity remote code execution (RCE) flaw affecting its N-central remote monitoring and management (RMM) platform.

2026-09-23 15:40 UTC
N-able patches critical N-central zero-day exploited in the wild (CVE ...

web:www.helpnetsecurity.com

N-able released an emergency hotfix for CVE - 2026 -86218, a remote code execution (RCE) flaw affecting N-central.

2026-09-23 15:40 UTC
CVE-2026-86218 Impact, Exploitability, and Mitigation Steps | Wiz

web:www.wiz.io

Understand the critical aspects of CVE - 2026 -86218 with a detailed vulnerability assessment, exploitation potential, affected technologies, and remediation guidance.

2026-09-23 15:40 UTC
Patch Tuesday September 2026: Security Updates & CVE Analysis

web:zecurit.com

Get the complete breakdown of Microsoft's September 2026 Patch Tuesday. We analyze the latest security updates and all critical CVEs .

2026-09-23 15:40 UTC

AI Forensic Analysis

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Raw JSON

The full cvelistV5 record. Download as CVE-2026-95818.json.

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