# CVE-2026-6846: Binutils: binutils: arbitrary code execution via malformed xcoff object file processing

Status: published. Published: 2026-04-22. Updated: 2026-11-04.

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.

## Remediation

- workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability. (source: CNA: redhat)
- fix: RHSA-2026:33527: Red Hat Hardened Images (source: ADP: redhat-SADP)
- workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability. (source: ADP: redhat-SADP)

## Affected products and versions

-  /  (binutils): ≥ 0; < 2.47 (affected, semver). Source: CNA: redhat
- Red Hat / Red Hat Hardened Images (binutils-main): ≥ 2.45.1-5.1.hum1; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Hardened Images (binutils-main): ≥ 2.46.1-1.hum1; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 10 (binutils): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 10 (gcc-toolset-15-binutils): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 10 (gdb): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 10 (mingw-binutils): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 6 (binutils): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 7 (binutils): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 7 (gdb): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 8 (binutils): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 8 (gcc-toolset-14-binutils): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 8 (gcc-toolset-14-gdb): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 8 (gcc-toolset-15-binutils): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 8 (gcc-toolset-15-gdb): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 8 (gdb): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 8 (mingw-binutils): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 9 (binutils): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 9 (gcc-toolset-14-binutils): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 9 (gcc-toolset-15-binutils): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 9 (gdb): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 9 (mingw-binutils): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat OpenShift Container Platform 4 (openshift/ose-rhel-coreos-8): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat OpenShift Container Platform 4 (openshift/ose-rhel-coreos-9): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Hardened Images (binutils-main): ≥ 2.45.1-5.1.hum1; < * (unaffected, rpm); ≥ 2.46.1-1.hum1; < * (unaffected, rpm). Source: ADP: redhat-SADP
- Red Hat / Red Hat Enterprise Linux 10 (binutils): Version range not reported. Source: ADP: redhat-SADP
- Red Hat / Red Hat Enterprise Linux 10 (gcc-toolset-15-binutils): Version range not reported. Source: ADP: redhat-SADP
- Red Hat / Red Hat Enterprise Linux 10 (gdb): Version range not reported. Source: ADP: redhat-SADP
- Red Hat / Red Hat Enterprise Linux 10 (mingw-binutils): Version range not reported. Source: ADP: redhat-SADP
- Red Hat / Red Hat Enterprise Linux 6 (binutils): Version range not reported. Source: ADP: redhat-SADP
- Red Hat / Red Hat Enterprise Linux 7 (binutils): Version range not reported. Source: ADP: redhat-SADP
- Red Hat / Red Hat Enterprise Linux 7 (gdb): Version range not reported. Source: ADP: redhat-SADP
- Red Hat / Red Hat Enterprise Linux 8 (binutils): Version range not reported. Source: ADP: redhat-SADP
- Red Hat / Red Hat Enterprise Linux 8 (gcc-toolset-14-binutils): Version range not reported. Source: ADP: redhat-SADP
- Red Hat / Red Hat Enterprise Linux 8 (gcc-toolset-14-gdb): Version range not reported. Source: ADP: redhat-SADP
- Red Hat / Red Hat Enterprise Linux 8 (gcc-toolset-15-binutils): Version range not reported. Source: ADP: redhat-SADP
- Red Hat / Red Hat Enterprise Linux 8 (gcc-toolset-15-gdb): Version range not reported. Source: ADP: redhat-SADP
- Red Hat / Red Hat Enterprise Linux 8 (gdb): Version range not reported. Source: ADP: redhat-SADP
- Red Hat / Red Hat Enterprise Linux 8 (mingw-binutils): Version range not reported. Source: ADP: redhat-SADP
- Red Hat / Red Hat Enterprise Linux 9 (binutils): Version range not reported. Source: ADP: redhat-SADP
- Red Hat / Red Hat Enterprise Linux 9 (gcc-toolset-14-binutils): Version range not reported. Source: ADP: redhat-SADP
- Red Hat / Red Hat Enterprise Linux 9 (gcc-toolset-15-binutils): Version range not reported. Source: ADP: redhat-SADP
- Red Hat / Red Hat Enterprise Linux 9 (gdb): Version range not reported. Source: ADP: redhat-SADP
- Red Hat / Red Hat Enterprise Linux 9 (mingw-binutils): Version range not reported. Source: ADP: redhat-SADP
- Red Hat / Red Hat OpenShift Container Platform 4 (openshift/ose-rhel-coreos-9): Version range not reported. Source: ADP: redhat-SADP

## Severity and prioritization

- CVSS 3.1: 7.8 (high); CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H; source: CNA: redhat

- CVSS 3.1: 7.8 (high); CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H; source: ADP: redhat-SADP

- CISA KEV: No listing in collected sources

- EPSS: 0.17% as of 2026-11-04; percentile 6.52%

- SSVC: exploitation none; automatable no; technical impact total; source ADP: CISA-ADP

- Weaknesses: CWE-122

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://access.redhat.com/errata/RHSA-2026:33527 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2026:39022 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/security/cve/CVE-2026-6846 (CNA: redhat; vdb-entry, x_refsource_REDHAT)

- https://bugzilla.redhat.com/show_bug.cgi?id=2460006 (CNA: redhat; issue-tracking, x_refsource_REDHAT)

- https://access.redhat.com/security/cve/CVE-2026-6846 (ADP: redhat-SADP; vdb-entry, x_refsource_REDHAT)

- https://bugzilla.redhat.com/show_bug.cgi?id=2460006 (ADP: redhat-SADP; issue-tracking, x_refsource_REDHAT)

- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-6846.json (ADP: redhat-SADP; x_sadp-csaf-vex)

- https://access.redhat.com/errata/RHSA-2026:33527 (ADP: redhat-SADP; vendor-advisory, x_refsource_REDHAT)

## Provenance

- CNA: redhat: https://www.cve.org/CVERecord?id=CVE-2026-6846; retrieved 2026-11-05; source updated 2026-11-04

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-6846; retrieved 2026-11-05; source updated Not reported

Revision: d52e2a9e046fda24a90c368508c202818d6e14f99aa0ad0fe8fe9f081bcce6bb

Canonical: https://y2.dev/cve/CVE-2026-6846

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