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Vulnerability · Published Sep 14, 2026 · Assigned by VulDB

CVE-2026-90803GNU Binutils ld elf64-x86-64.c elf_x86_64_relocate_section buffer overflow

Medium 5.3

In plain English

A medium-severity buffer overflow 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 10% of all known vulnerabilities).

Severity (CVSS 3.1)5.3Medium
Exploit odds (30 days)0.2%top 90.0% 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 by this vulnerability is the function elf_x86_64_relocate_section of the file bfd/elf64-x86-64.c of the component ld. Such manipulation of the argument roff leads to buffer overflow. An attack has to be approached locally. The exploit has been disclosed publicly and may be used. Upgrading to version 2.48 addresses this issue. The name of the patch is 471130b39c03623ec6d78ece377ff4da3f6bfe7b. It is recommended to upgrade the affected component.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12binutilsno fix listedDEBIAN-CVE-2026-90803
Debian:13binutilsno fix listedDEBIAN-CVE-2026-90803
Debian:14binutilsno fix listedDEBIAN-CVE-2026-90803
Ubuntu:22.04:LTSbinutilsno fix listedUBUNTU-CVE-2026-90803
Ubuntu:24.04:LTSbinutilsno fix listedUBUNTU-CVE-2026-90803
Ubuntu:26.04:LTSbinutilsno fix listedUBUNTU-CVE-2026-90803
Ubuntu:26.10binutilsno fix listedUBUNTU-CVE-2026-90803

Affected products (as reported)

VendorProductVersions
GNU Binutils 2.47

Weakness: CWE-120, CWE-119 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C

References