Reference page — cumulative record through Sunday, October 4, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-91781

CVE-2026-91781LOW

GNU Binutils ELF Section elf64-x86-64.c elf_x86_64_common_section_index null pointer dereference

  AV  AC  AT  PR  UI  VC  VI  VA   CVSS    EPSS   %ile   KEV
   L   L   N   L   N   N   N   L    1.9   .0018    6.3     —

AFFECTED
  Product   Versions  Fixed
  Binutils  2.47 –    2.48

TIMELINE
  Sep 15  Reserved by VulDB
  Sep 15  Published (CNA: VulDB)
  Sep 16  EXPLOIT PUBLISHED — CVE-2026-91781 (GNU Binutils). Public exploit reference added.

CWE-404, CWE-476 · CNA: VulDB · CVSS v4.0 · 8 references · NVD status: Analyzed

Description

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.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
September 15, 2026	Reserved	Reserved by VulDB
September 15, 2026	Published	Published (CNA: VulDB)
September 16, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-91781 (GNU Binutils). Public exploit reference added.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
GNU	Binutils	—	2.47	2.48

Weaknesses

CWE-404 · CWE-476

References (8)

https://github.com/Ech06/CVE_submit/tree/main/bugzilla/pocs/34449 [Third Party Advisory]
https://sourceware.org/bugzilla/show_bug.cgi?id=34449 [Exploit, Third Party Advisory]
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=7322e9bc30cb282575a701c307851fd3d66fee68 [Third Party Advisory]
https://vuldb.com/cve/CVE-2026-91781 [Third Party Advisory]
https://vuldb.com/submit/933336 [Third Party Advisory]
https://vuldb.com/vuln/404052 [Third Party Advisory]
https://vuldb.com/vuln/404052/cti [Permissions Required]
https://www.gnu.org/ [Product]

Authoritative record: CVE-2026-91781 at cve.org

Vendors: gnu

Weaknesses: CWE-404 · CWE-476

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-91781 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Sunday, October 4, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.