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Vulnerability · Published Sep 14, 2026 · Assigned by VulDB

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

Medium 5.3

In plain English

A medium-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 6% of all known vulnerabilities).

Severity (CVSS 3.1)5.3Medium
Exploit odds (30 days)0.2%top 94.3% 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. 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 packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12binutilsno fix listedDEBIAN-CVE-2026-90830
Debian:13binutilsno fix listedDEBIAN-CVE-2026-90830
Debian:14binutilsno fix listedDEBIAN-CVE-2026-90830
Ubuntu:22.04:LTSbinutilsno fix listedUBUNTU-CVE-2026-90830
Ubuntu:24.04:LTSbinutilsno fix listedUBUNTU-CVE-2026-90830
Ubuntu:26.04:LTSbinutilsno fix listedUBUNTU-CVE-2026-90830
Ubuntu:26.10binutilsno fix listedUBUNTU-CVE-2026-90830

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:L/I:L/A:L/E:P/RL:X/RC:R

References