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Vulnerability · Published Sep 15, 2026 · Assigned by VulDB

CVE-2026-91781GNU Binutils ELF Section elf64-x86-64.c elf_x86_64_common_section_index null pointer dereference

Low 3.3

In plain English

A low-severity null pointer dereference in Binutils from GNU. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 7% of all known vulnerabilities).

Severity (CVSS 3.1)3.3Low
Exploit odds (30 days)0.2%top 92.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12binutilsno fix listedDEBIAN-CVE-2026-91781
Debian:13binutilsno fix listedDEBIAN-CVE-2026-91781
Debian:14binutilsno fix listedDEBIAN-CVE-2026-91781
Ubuntu:22.04:LTSbinutilsno fix listedUBUNTU-CVE-2026-91781
Ubuntu:24.04:LTSbinutilsno fix listedUBUNTU-CVE-2026-91781
Ubuntu:26.04:LTSbinutilsno fix listedUBUNTU-CVE-2026-91781
Ubuntu:26.10binutilsno fix listedUBUNTU-CVE-2026-91781

Affected products (as reported)

VendorProductVersions
GNU Binutils 2.47

Weakness: CWE-476, CWE-404 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C

References