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Vulnerability record · CVE-2026-6846 · published 22 April 2026

CVE-2026-6846: Gnu binutils heap-based buffer overflow vulnerability

Gnu · Binutils

A flaw was found in binutils. A heap-buffer-overflow vulnerability exists when processing a specially crafted XCOFF (Extended Common Object File Format) object file during linking. A local attacker could trick a user into processing this malicious file, which could lead to arbitrary code execution, allowing the attacker to run unauthorized commands, or cause a denial of service, making the system unavailable.

7.8 CVSS 3.1 High EPSS 0.20% · top 91.6% CWE-122 · Heap-based buffer overflow
7.8CVSS 3.1 base score
0.20%EPSS exploitation probability, 30 days
NoNot in CISA KEV
4Affected product versions listed by NVD
8References
1 Sep 2026Last modified by NVD

Description

A flaw was found in binutils. A heap-buffer-overflow vulnerability exists when processing a specially crafted XCOFF (Extended Common Object File Format) object file during linking. A local attacker could trick a user into processing this malicious file, which could lead to arbitrary code execution, allowing the attacker to run unauthorized commands, or cause a denial of service, making the system unavailable.

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

4 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://access.redhat.com/errata/RHSA-2026:33527
https://access.redhat.com/errata/RHSA-2026:39022
https://access.redhat.com/security/cve/CVE-2026-6846 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2460006 Issue TrackingThird Party Advisory
https://access.redhat.com/errata/RHSA-2026:33527
https://access.redhat.com/security/cve/CVE-2026-6846 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2460006 Issue TrackingThird Party Advisory
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-6846.json

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Source: NIST National Vulnerability Database (record CVE-2026-6846), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.