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Fencer Vulns
low 3.3

CVE-2025-11840 json

GNU Binutils ldmisc.c vfinfo out-of-bounds

published 2025-10-16 12 mo ago modified 2026-10-15 25 d ago also EUVD-2025-34771

cvss
3.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 20%
public exploits
0
none known

Summary

A weakness has been identified in GNU Binutils 2.45. The affected element is the function vfinfo of the file ldmisc.c. Executing a manipulation can lead to out-of-bounds read. The attack can only be executed locally. The exploit has been made available to the public and could be used for attacks. This patch is called 16357. It is best practice to apply a patch to resolve this issue.

Patch / fix

  • binutils Debian 14 2.46-1

debian advisories DEBIAN-CVE-2025-11840

  • binutils Ubuntu 22.04 LTS 2.38-4ubuntu2.11
  • binutils Ubuntu 24.04 LTS 2.42-4ubuntu2.7
  • binutils Ubuntu 25.10 2.45-7ubuntu1.1
  • binutils Ubuntu Pro 14.04 LTS 2.24-5ubuntu14.2+esm7
  • binutils Ubuntu Pro 16.04 LTS 2.26.1-1ubuntu1~16.04.8+esm13
  • binutils Ubuntu Pro 18.04 LTS 2.30-21ubuntu1~18.04.9+esm5
  • binutils Ubuntu Pro 20.04 LTS 2.34-6ubuntu1.11+esm1

ubuntu advisories UBUNTU-CVE-2025-11840

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 hummingbird 1 2.45.1-5.hum1
  • binutils-gold hummingbird 1 2.45.1-5.hum1
  • binutils-gprofng hummingbird 1 2.45.1-5.hum1

red hat advisories RHSA-2026:7098

  • binutils openSUSE Tumbleweed 2.47-1.1

opensuse advisories openSUSE-SU-2026:11932-1

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-2025-11840 updated cvss 3.3

binutils: GNU Binutils out-of-bounds read

  • 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, +9 more Red Hat Enterprise Linux 9 gdb, binutils, gdb-minimal, gdb-headless, binutils-gold, gdb-gdbserver, +13 more Red Hat Enterprise Linux 10 gdb, binutils, mingw-binutils, mingw32-binutils, mingw64-binutils, gcc-toolset-15-binutils 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 OpenShift AI (RHOAI) rhoai/odh-dashboard-rhel9
    under investigation
  • Red Hat Hardened Images binutils 2.45.1-5.hum1, binutils-gold 2.45.1-5.hum1, binutils-gprofng 2.45.1-5.hum1
    fixed: vendor fix RHSA-2026:7098

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-25-162-05 updated cvss 3.3

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
12 mo ago

Exploit prediction

0.28% chance of exploitation in the next 30 days, higher than 20% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • sourceware.org https://sourceware.org/bugzilla/attachment.cgi?id=16351 referenced PoC, tagged "exploit" by a source, unverified
  • sourceware.org https://sourceware.org/bugzilla/show_bug.cgi?id=33455 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:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
CNA 3.1 3.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C
CNA 3.0 3.3 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C
CNA 2.0 1.7 AV:L/AC:L/Au:S/C:N/I:N/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:N/VI:N/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 3.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
NVD 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CNA 2.0 1.7 AV:L/AC:L/Au:S/C:N/I:N/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 SIPLUS S7-1500 CPU 1518-4 PN/DP MFP

Classification

Weakness
  • CWE-125 Out-of-bounds Read
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

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.