CVE-2026-90830: GNU Binutils Section Merge merge.c _bfd_write_merged_section null pointer dereference

Severity: medium (CVSS 5.3 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: 2026-09-14 · updated 2026-09-16
Weakness: CWE-404

Description

A security vulnerability has been detected in GNU Binutils 2.47. Impacted is the function _bfd_write_merged_section of the file bfd/merge.c of the component Section Merge. The manipulation leads to null pointer dereference. The attack needs to be performed locally. The exploit has been disclosed publicly and may be used. 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://sourceware.org/bugzilla/attachment.cgi?id=16884
https://sourceware.org/bugzilla/show_bug.cgi?id=34452
https://vuldb.com/cve/CVE-2026-90830
https://vuldb.com/submit/925229
https://vuldb.com/vuln/403332
https://vuldb.com/vuln/403332/cti
https://www.gnu.org/

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