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Fencer Vulns
medium 6.1

CVE-2026-4647 json

Binutils: out-of-bounds read in xcoff relocation processing in gnu binutils bfd library

published 2026-03-23 7 mo ago modified 2026-11-05 3 d ago also EUVD-2026-14435

cvss
6.1
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 the GNU Binutils BFD library, a widely used component for handling binary files such as object files and executables. The issue occurs when processing specially crafted XCOFF object files, where a relocation type value is not properly validated before being used. This can cause the program to read memory outside of intended bounds. As a result, affected tools may crash or expose unintended memory contents, leading to denial-of-service or limited information disclosure risks.

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-2026-4647

  • 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 2.41-11
  • crash Azure Linux 3.0 9.0.0-2
  • gdb Azure Linux 3.0 13.2-7

azure linux advisories AZL-80877AZL-80895AZL-80904

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-2026-4647 updated cvss 6.1

binutils: Out-of-Bounds Read in XCOFF Relocation Processing in GNU Binutils BFD Library

  • Red Hat Enterprise Linux 6 binutils Red Hat Enterprise Linux 7 gdb, binutils, gdb-gdbserver Red Hat Enterprise Linux 8 gdb, binutils, gdb-headless, gdb-gdbserver, mingw-binutils, mingw32-binutils, +10 more
    affected: workaround, no fix available “Fix deferred”
  • 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 OpenShift Container Platform 4 openshift/ose-rhel-coreos-8, openshift/ose-rhel-coreos-9
    affected: workaround, no fix available “Fix deferred”
  • 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 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 not in execute path

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
partial
Assessed
7 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 6.1 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
NVD 3.1 6.1 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/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

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.