NULL pointer dereference in GNU Binutils
CVE-2026-91781
A security vulnerability has been detected in GNU Binutils 2.47. Affected is the function elf_x86_64_common_section_index of the file bfd/elf64-x86-64.c of the component ELF Section Handler. The manipulation leads to null pointer dereference. The attack needs to be performed locally. The exploit has been disclosed publicly and may be used. Upgrading to version 2.48 is able to address this issue. The identifier of the patch is 7322e9bc30cb282575a701c307851fd3d66fee68. It is suggested to upgrade the affected component.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.3 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.002 (7.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 7th percentile — 7.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- GNU Binutils — versions 2.47
Weakness classification (CWE)
References
- vuldb.com/vuln/404052 (technical-description, Third Party Advisory, vdb-entry)
- vuldb.com/vuln/404052/cti (signature, Permissions Required, permissions-required)
- vuldb.com/cve/CVE-2026-91781 (Third Party Advisory, third-party-advisory)
- vuldb.com/submit/933336 (Third Party Advisory, third-party-advisory)
- sourceware.org/bugzilla/show_bug.cgi (issue-tracking, Exploit, Third Party Advisory)
- github.com/Ech06/CVE_submit/tree/main/bugzilla/pocs/34449 (Third Party Advisory, exploit)
- sourceware.org/git/gitweb.cgi (Third Party Advisory, patch, broken-link)
- www.gnu.org/ (Product, product, broken-link)
Frequently asked questions
- What is CVE-2026-91781?
- CVE-2026-91781 is a low-severity vulnerability in GNU Binutils, classified under Improper Resource Shutdown or Release. CVSS score: 3.3/10. Published 2026-09-15.
- How severe is CVE-2026-91781?
- Low severity. CVSS v3 base score is 3.3 out of 10.