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Fencer Vulns
low 3.3

CVE-2025-11839 json

GNU Binutils prdbg.c tg_tag_type return value

published 2025-10-16 12 mo ago modified 2026-10-15 25 d ago also EUVD-2025-34764

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 security flaw has been discovered in GNU Binutils 2.45. Impacted is the function tg_tag_type of the file prdbg.c. Performing a manipulation results in unchecked return value. The attack needs to be approached locally. The exploit has been released to the public and may be used for attacks.

Patch / fix

  • binutils Debian 14 2.46-1

debian advisories DEBIAN-CVE-2025-11839

  • 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-2025-11839

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

  • binutils Azure Linux 3.0 2.41-11
  • binutils CBL-Mariner 2.0 2.37-20

azure linux advisories AZL-68772AZL-68775

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-2025-11839 updated cvss 3.3

binutils: GNU Binutils prdbg.c tg_tag_type return value

  • 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/show_bug.cgi?id=33448 referenced PoC, tagged "exploit" by a source, unverified
  • sourceware.org https://sourceware.org/bugzilla/attachment.cgi?id=16344 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:X/RC:R
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:X/RC:R
CNA 2.0 1.7 AV:L/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:ND/RC:UR
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-252 Unchecked Return Value
  • CWE-253 Incorrect Check of Function Return Value

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.