Vulnerability · Published Sep 27, 2025 · Assigned by VulDB
CVE-2025-11083GNU Binutils Linker elfcode.h elf_swap_shdr heap-based overflow
Medium 5.3
In plain English
A medium-severity heap buffer overflow in Binutils from GNU. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 18% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
A vulnerability has been found in GNU Binutils 2.45. The affected element is the function elf_swap_shdr in the library bfd/elfcode.h of the component Linker. The manipulation leads to heap-based buffer overflow. The attack must be carried out locally. The exploit has been disclosed to the public and may be used. The identifier of the patch is 9ca499644a21ceb3f946d1c179c38a83be084490. To fix this issue, it is recommended to deploy a patch. The code maintainer replied with "[f]ixed for 2.46".
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:10 | binutils | 2.41-58.el10_1.2.alma.1 | ALSA-2025:23306 |
| AlmaLinux:8 | binutils | 2.30-128.el8_10 | ALSA-2025:23382 |
| AlmaLinux:9 | binutils | 2.35.2-67.el9_7.1 | ALSA-2025:23343 |
| AlmaLinux:10 | binutils-devel | 2.41-58.el10_1.2.alma.1 | ALSA-2025:23306 |
| AlmaLinux:8 | binutils-devel | 2.30-128.el8_10 | ALSA-2025:23382 |
| AlmaLinux:9 | binutils-devel | 2.35.2-67.el9_7.1 | ALSA-2025:23343 |
| AlmaLinux:10 | binutils-gold | 2.41-58.el10_1.2.alma.1 | ALSA-2025:23306 |
| AlmaLinux:9 | binutils-gold | 2.35.2-67.el9_7.1 | ALSA-2025:23343 |
| AlmaLinux:9 | gcc-toolset-13-binutils | 2.40-21.el9_7.1 | ALSA-2025:23336 |
| AlmaLinux:9 | gcc-toolset-13-binutils-devel | 2.40-21.el9_7.1 | ALSA-2025:23336 |
| AlmaLinux:9 | gcc-toolset-13-binutils-gold | 2.40-21.el9_7.1 | ALSA-2025:23336 |
| AlmaLinux:8 | gcc-toolset-14-binutils | 2.41-4.el8_10.1 | ALSA-2026:2627 |
| AlmaLinux:9 | gcc-toolset-14-binutils | 2.41-5.el9_7.1 | ALSA-2026:0052 |
| AlmaLinux:8 | gcc-toolset-14-binutils-devel | 2.41-4.el8_10.1 | ALSA-2026:2627 |
| AlmaLinux:9 | gcc-toolset-14-binutils-devel | 2.41-5.el9_7.1 | ALSA-2026:0052 |
| AlmaLinux:8 | gcc-toolset-14-binutils-gold | 2.41-4.el8_10.1 | ALSA-2026:2627 |
| AlmaLinux:9 | gcc-toolset-14-binutils-gold | 2.41-5.el9_7.1 | ALSA-2026:0052 |
| AlmaLinux:8 | gcc-toolset-14-binutils-gprofng | 2.41-4.el8_10.1 | ALSA-2026:2627 |
| AlmaLinux:9 | gcc-toolset-14-binutils-gprofng | 2.41-5.el9_7.1 | ALSA-2026:0052 |
| AlmaLinux:10 | gcc-toolset-15-binutils | 2.44-7.el10_1.1 | ALSA-2026:0108 |
| AlmaLinux:9 | gcc-toolset-15-binutils | 2.44-3.el9_7.1 | ALSA-2026:1359 |
| AlmaLinux:10 | gcc-toolset-15-binutils-devel | 2.44-7.el10_1.1 | ALSA-2026:0108 |
| AlmaLinux:9 | gcc-toolset-15-binutils-devel | 2.44-3.el9_7.1 | ALSA-2026:1359 |
| AlmaLinux:10 | gcc-toolset-15-binutils-gold | 2.44-7.el10_1.1 | ALSA-2026:0108 |
| AlmaLinux:9 | gcc-toolset-15-binutils-gold | 2.44-3.el9_7.1 | ALSA-2026:1359 |
| AlmaLinux:10 | gcc-toolset-15-binutils-gprofng | 2.44-7.el10_1.1 | ALSA-2026:0108 |
| AlmaLinux:9 | gcc-toolset-15-binutils-gprofng | 2.44-3.el9_7.1 | ALSA-2026:1359 |
| Debian:12 | binutils | no fix listed | DEBIAN-CVE-2025-11083 |
| Debian:13 | binutils | no fix listed | DEBIAN-CVE-2025-11083 |
| Debian:14 | binutils | 2.46-1 | DEBIAN-CVE-2025-11083 |
| Rocky Linux:10 | binutils | 0:2.41-58.el10_1.2 | RLSA-2025:23306 |
| Rocky Linux:8 | binutils | 0:2.30-128.el8_10 | RLSA-2025:23382 |
| Rocky Linux:9 | binutils | 0:2.35.2-67.el9_7.1 | RLSA-2025:23343 |
| Rocky Linux:9 | gcc-toolset-13-binutils | 0:2.40-21.el9_7.1 | RLSA-2025:23336 |
| Rocky Linux:8 | gcc-toolset-14-binutils | 0:2.41-4.el8_10.1 | RLSA-2026:2627 |
| Rocky Linux:9 | gcc-toolset-14-binutils | 0:2.41-5.el9_7.1 | RLSA-2026:0052 |
| Rocky Linux:10 | gcc-toolset-15-binutils | 0:2.44-7.el10_1.1 | RLSA-2026:0108 |
| Rocky Linux:9 | gcc-toolset-15-binutils | 0:2.44-3.el9_7.1 | RLSA-2026:1359 |
| Ubuntu:22.04:LTS | binutils | 2.38-4ubuntu2.10 | USN-7847-1 |
| Ubuntu:22.04:LTS | binutils | 2.38-4ubuntu2.10 | UBUNTU-CVE-2025-11083 |
| Ubuntu:24.04:LTS | binutils | 2.42-4ubuntu2.6 | USN-7847-1 |
| Ubuntu:24.04:LTS | binutils | 2.42-4ubuntu2.6 | UBUNTU-CVE-2025-11083 |
| Ubuntu:25.10 | binutils | 2.45-7ubuntu1.2 | UBUNTU-CVE-2025-11083 |
Affected products (as reported)
Weakness: CWE-122, CWE-119 · Vector: 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
References
- VDB-326124 | GNU Binutils Linker elfcode.h elf_swap_shdr heap-based overflow vdb-entry, technical-description
- VDB-326124 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- Submit #661277 | GNU Binutils 2.45 Heap-based Buffer Overflow third-party-advisory
- https://sourceware.org/bugzilla/show_bug.cgi?id=33457 issue-tracking
- https://sourceware.org/bugzilla/show_bug.cgi?id=33457#c1 issue-tracking
- https://sourceware.org/bugzilla/attachment.cgi?id=16353 exploit
- https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=9ca499644a21ceb3f946d1c179c38a83be084490 patch
- https://www.gnu.org/ product
- https://cert-portal.siemens.com/productcert/html/ssa-082556.html