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Fencer Vulns
high 7.8

CVE-2026-6846 json

Binutils: binutils: arbitrary code execution via malformed xcoff object file processing

published 2026-04-22 6 mo ago modified 2026-11-05 4 d ago also EUVD-2026-24714

cvss
7.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 6%
public exploits
0
none known

Summary

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.

Patch / fix

  • Red Hat Red Hat Hardened Images 2.45.1-5.1.hum1, 2.46.1-1.hum1
  • binutils Debian 14 2.47-1

debian advisories DEBIAN-CVE-2026-6846

  • binutils hummingbird 1 2.46.1-1.hum1
  • binutils-gold hummingbird 1 2.46.1-1.hum1
  • binutils-gprofng hummingbird 1 2.46.1-1.hum1
  • binutils hummingbird 1 2.45.1-5.1.hum1
  • binutils-gold hummingbird 1 2.45.1-5.1.hum1
  • binutils-gprofng hummingbird 1 2.45.1-5.1.hum1

red hat advisories RHSA-2026:39022RHSA-2026:33527

  • binutils openSUSE Tumbleweed 2.47-1.1

opensuse advisories openSUSE-SU-2026:11932-1

  • binutils Azure Linux 3.0 2.41-13
  • gdb Azure Linux 3.0 13.2-9

azure linux advisories AZL-85514AZL-85536

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-6846 updated cvss 7.8

binutils: Binutils: Arbitrary code execution via malformed XCOFF object file processing

  • Red Hat Enterprise Linux 8 gdb, gdb-headless, gdb-gdbserver, mingw-binutils, mingw32-binutils, mingw64-binutils, +1 more
    affected: workaround, no fix available, no fix planned “Will not fix”
  • Red Hat Enterprise Linux 9 mingw-binutils, mingw32-binutils, mingw64-binutils, mingw-binutils-generic Red Hat Enterprise Linux 10 mingw-binutils, mingw32-binutils, mingw64-binutils
    affected: workaround, no fix available
  • Red Hat Hardened Images binutils 2.46.1-1.hum1, binutils 2.45.1-5.1.hum1, binutils-gold 2.46.1-1.hum1, binutils-gold 2.45.1-5.1.hum1, binutils-gprofng 2.46.1-1.hum1, binutils-gprofng 2.45.1-5.1.hum1
    fixed: vendor fix RHSA-2026:33527
  • Red Hat Enterprise Linux 6 binutils Red Hat Enterprise Linux 7 gdb, binutils, gdb-gdbserver Red Hat Enterprise Linux 8 binutils, gcc-toolset-14-gdb, gcc-toolset-15-gdb, gcc-toolset-14-binutils, gcc-toolset-15-binutils, gcc-toolset-14-binutils-gold, +3 more Red Hat Enterprise Linux 9 gdb, binutils, gdb-minimal, gdb-headless, binutils-gold, gdb-gdbserver, +6 more Red Hat Enterprise Linux 10 gdb, binutils, gcc-toolset-15-binutils
    not affected: vulnerable code cannot be controlled by adversary
  • Red Hat OpenShift Container Platform 4 openshift/ose-rhel-coreos-8, openshift/ose-rhel-coreos-9
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
6 mo ago

Exploit prediction

0.17% chance of exploitation in the next 30 days, higher than 6% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CISA ADP 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

  • Red Hat Red Hat Hardened Images
  • Red Hat Red Hat Enterprise Linux 10
  • Red Hat Red Hat Enterprise Linux 6
  • Red Hat Red Hat Enterprise Linux 7
  • Red Hat Red Hat Enterprise Linux 8
  • Red Hat Red Hat Enterprise Linux 9
  • Red Hat Red Hat OpenShift Container Platform 4

Classification

Weakness
  • CWE-122 Heap-based Buffer Overflow

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.