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Fencer Intel
medium 5.3

CVE-2025-7546 json

GNU Binutils elf.c bfd_elf_set_group_contents out-of-bounds write

published last yr. modified 25d ago also EUVD-2025-21277

cvss
5.3
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 10%
public exploits
0
none known

Summary

A vulnerability, which was classified as problematic, has been found in GNU Binutils 2.45. Affected by this issue is the function bfd_elf_set_group_contents of the file bfd/elf.c. The manipulation leads to out-of-bounds write. It is possible to launch the attack on the local host. The exploit has been disclosed to the public and may be used. The name of the patch is 41461010eb7c79fee7a9d5f6209accdaac66cc6b. It is recommended to apply a patch to fix this issue.

Patch / fix

  • Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem V1.1.1
  • binutils Debian 14 2.45-3

debian advisories DEBIAN-CVE-2025-7546

  • binutils Ubuntu 24.04 LTS 2.42-4ubuntu2.6

ubuntu advisories UBUNTU-CVE-2025-7546

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • binutils SLES 16.0, Linux Micro 6.2, SLES for SAP applications 16.0 2.45-160000.1.1
  • bpftool SLES for SAP applications 16.0, SLES 16.0 7.5.0-160000.2.3
  • binutils SLES for SAP 15 SP5, SLES for SAP 15 SP4, SLES for SAP 15 SP3 +18 more 2.45-150100.7.57.1
  • perf SLE Module for Development Tools 15 SP6, openSUSE Leap 15.6 6.4.0.git33229.a3afe13a7f-150600.3.17.1
  • perf SLE Module for Development Tools 15 SP7 6.4.0.git54263.0aad576b1c-150700.3.2.2
  • perf SLES for SAP 15 SP3, SLES 15 SP3-LTSS, SLE High Performance Computing 15 SP3-LTSS +1 more 5.3.18-150300.38.7.1
  • perf SLES for SAP 15 SP4, SLES 15 SP4-LTSS, SLE High Performance Computing 15 SP4-LTSS +1 more 5.14.21-150400.44.20.1
  • perf SLES for SAP 15 SP5, SLES 15 SP5-LTSS, SLE High Performance Computing 15 SP5-LTSS +1 more 5.14.21-150500.52.5.1

suse advisories SUSE-SU-2025:21195-1SUSE-SU-2025:21197-1SUSE-SU-2025:4096-1

  • mingw32-binutils openSUSE Tumbleweed 2.45.1-2.1
  • mingw64-binutils openSUSE Tumbleweed 2.45.1-2.1
  • binutils openSUSE Leap 16.0 2.45-160000.1.1
  • bpftool openSUSE Leap 16.0 7.5.0-160000.2.3
  • cross-rx-binutils openSUSE Leap 16.0 2.45-160000.1.1
  • cross-arm-binutils openSUSE Leap 16.0 2.45-160000.1.1
  • cross-avr-binutils openSUSE Leap 16.0 2.45-160000.1.1
  • cross-bpf-binutils openSUSE Leap 16.0 2.45-160000.1.1

opensuse advisories openSUSE-SU-2026:10330-1openSUSE-SU-2026:10331-1openSUSE-SU-2025:20150-1openSUSE-SU-2025:15651-1

  • binutils CBL-Mariner 2.0 2.37-16
  • gdb CBL-Mariner 2.0 11.2-7
  • binutils Azure Linux 3.0 2.41-7
  • gdb Azure Linux 3.0 13.2-5

azure linux advisories AZL-65349AZL-65358AZL-65381AZL-65400

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

Is CVE-2025-7546 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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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-2025-7546 updated cvss 5.3

binutils: Binutils: Out-of-bounds Write Vulnerability

  • Red Hat Enterprise Linux 7 binutils Red Hat Enterprise Linux 8 gcc-toolset-13-binutils, gcc-toolset-14-binutils, gcc-toolset-13-binutils-gold, gcc-toolset-14-binutils-gold, gcc-toolset-14-binutils-gprofng Red Hat Enterprise Linux 9 gcc-toolset-13-binutils, gcc-toolset-14-binutils, gcc-toolset-15-binutils, gcc-toolset-13-binutils-gold, gcc-toolset-14-binutils-gold, gcc-toolset-15-binutils-gold, +2 more Red Hat Enterprise Linux 10 gcc-toolset-15-binutils Red Hat OpenShift Container Platform 4 openshift/ose-rhel-coreos-8
    affected: workaround, no fix available
  • Red Hat Enterprise Linux 6 binutils Red Hat Enterprise Linux 7 gdb, gdb-gdbserver
    not affected: vulnerable code not present
  • Red Hat Enterprise Linux 8 gdb, binutils, gdb-headless, gdb-gdbserver, mingw-binutils, mingw32-binutils, +4 more Red Hat Enterprise Linux 9 gdb, binutils, gdb-minimal, gdb-headless, binutils-gold, gdb-gdbserver, +5 more Red Hat Enterprise Linux 10 gdb, binutils, mingw-binutils, mingw32-binutils, mingw64-binutils
    not affected: vulnerable code cannot be controlled by adversary
  • Red Hat OpenShift Container Platform 4 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 ICSA-24-102-01 updated cvss 5.3

Siemens SIMATIC S7-1500 TM MFP

  • Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem
    affected: mitigation, no fix available

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

cisa ICSA-25-162-05 updated cvss 5.3

Siemens SIMATIC S7-1500 CPU family

  • Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0) >= 3.1.5 Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0) >= 3.1.5 Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0) >= 3.1.5 Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0) >= 3.1.5 Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0) >= 3.1.5
    affected: mitigation, no fix available

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
partial
Assessed
last yr.

Exploit prediction

0.21% chance of exploitation in the next 30 days, higher than 10% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • sourceware.org https://sourceware.org/bugzilla/show_bug.cgi?id=33050 referenced PoC, tagged "exploit" by a source, unverified
  • sourceware.org https://sourceware.org/bugzilla/attachment.cgi?id=16118 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 4.0 4.8 CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
CNA 3.1 5.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
CNA 3.0 5.3 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
CNA 2.0 4.3 AV:L/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:OF/RC:C
CNA 4.0 1.9 CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CNA 3.1 5.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
NVD 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CNA 2.0 4.3 AV:L/AC:L/Au:S/C:P/I:P/A:P

Affected products

  • GNU Binutils
  • Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP
  • Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP
  • Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem
  • Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP

Classification

Weakness
  • CWE-787 Out-of-bounds Write
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

Sources

Fencer Intel 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.