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.
Affected products
gnu: binutils; redhat: hardened images; redhat: openshift container platform; redhat: enterprise linux
References8
- access.redhat.com/errata/RHSA-2026:33527
- access.redhat.com/errata/RHSA-2026:39022
- access.redhat.com/security/cve/CVE-2026-6846 Third Party Advisory
- bugzilla.redhat.com/show_bug.cgi?id=2460006 Issue TrackingThird Party Advisory
- access.redhat.com/errata/RHSA-2026:33527
- access.redhat.com/security/cve/CVE-2026-6846 Third Party Advisory
- bugzilla.redhat.com/show_bug.cgi?id=2460006 Issue TrackingThird Party Advisory
- security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-6846.…
Metrics
- CVSS 3.1
-
7.8
HIGH
Score source: CNA
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 0% percentile: 7 · as of 13 November 2026
- CWE
- CWE-122
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.