CVE-2026-91780: GNU Binutils elflink.c elf_link_add_object_symbols null pointer dereference

Severity: low (CVSS 3.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-09-15 · updated 2026-09-16
Weakness: CWE-404

Description

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.

Affected products

GNU Binutils: 2.47

References

https://github.com/Ech06/CVE_submit/tree/main/bugzilla/pocs/34447
https://sourceware.org/bugzilla/show_bug.cgi?id=34447
https://vuldb.com/cve/CVE-2026-91780
https://vuldb.com/submit/933334
https://vuldb.com/vuln/404051
https://vuldb.com/vuln/404051/cti
https://www.gnu.org/
https://sourceware.org/bugzilla/show_bug.cgi?id=34447
https://vuldb.com/submit/933334

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