NULL pointer dereference in GNU Binutils
CVE-2026-91782
A vulnerability was detected in GNU Binutils 2.47. Affected by this vulnerability is the function elf_x86_allocate_dynrelocs of the file bfd/elfxx-x86.c of the component Dynamic Relocation Allocation. The manipulation results in null pointer dereference. The attack requires a local approach. The exploit is now public and may be used. Upgrading to version 2.48 addresses this issue. The patch is identified as d1268210b6f6/471130b39c0/283d3198bed/0a84e560216/a692a633d40. Upgrading the affected component is recommended.
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/404053 (Permissions Required, technical-description, vdb-entry)
- vuldb.com/vuln/404053/cti (signature, Permissions Required, permissions-required)
- vuldb.com/cve/CVE-2026-91782 (Third Party Advisory, third-party-advisory)
- vuldb.com/submit/933335 (Exploit, third-party-advisory)
- sourceware.org/bugzilla/show_bug.cgi (issue-tracking, Exploit, Third Party Advisory, broken-link)
- github.com/Ech06/CVE_submit/tree/main/bugzilla/pocs/34448 (Third Party Advisory, exploit)
- www.gnu.org/ (Product, product, broken-link)
Frequently asked questions
- What is CVE-2026-91782?
- CVE-2026-91782 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-2026-91782?
- Low severity. CVSS v3 base score is 3.3 out of 10.