NULL pointer dereference in GNU Binutils
CVE-2026-91780
A weakness has been identified in GNU Binutils 2.47. This impacts the function elf_link_add_object_symbols of the file bfd/elflink.c. Executing a manipulation can lead to null pointer dereference. The attack needs to be launched locally. The exploit has been made available to the public and could be used for attacks. The project was informed of the problem early through a bug report but has not responded yet.
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 (6.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 6th percentile — 6.4% 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/404051 (technical-description, Third Party Advisory, vdb-entry)
- vuldb.com/vuln/404051/cti (signature, Permissions Required, permissions-required)
- vuldb.com/cve/CVE-2026-91780 (Third Party Advisory, third-party-advisory)
- vuldb.com/submit/933334 (Third Party Advisory, third-party-advisory)
- sourceware.org/bugzilla/show_bug.cgi (issue-tracking, Third Party Advisory)
- github.com/Ech06/CVE_submit/tree/main/bugzilla/pocs/34447 (Third Party Advisory, exploit)
- www.gnu.org/ (Product, product, broken-link)
Frequently asked questions
- What is CVE-2026-91780?
- CVE-2026-91780 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-2026-91780?
- Low severity. CVSS v3 base score is 3.3 out of 10.