CVE-2026-6846

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.

What this means for your business

It affects Gnu Binutils. It matters if your company, or a supplier that handles your data, runs it.
An attacker can use it only with access to the machine itself, without a login, but only after tricking someone into an action such as opening a file or a link.
FIRST's prediction model gives it a 0.2% chance of attack attempts being seen in the next 30 days, ranking above 8% of all known flaws.

What to do

1Check whether your company or your suppliers run Gnu Binutils, and which version. The affected versions are listed further down this page.
2If you do, follow the vendor's guidance. No patch reference has been published yet.

Fastnexa security experts

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Scoring

CVSS: 7.8 (v3.1)
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness: CWE-122
Assigned by: secalert@redhat.com

Dates

Published: 2026-04-22
Last modified: 2026-09-01
Sources: NVD

Affected products

Gnu Binutils- 2.46
Redhat Hardened Imagesall versions
Redhat Openshift Container Platform4.0
Redhat Enterprise Linux6.0, 8.0, 9.0, 10.0

As listed in the NVD configuration data. Not a statement about your estate.