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-2026-90803

CVE-2026-90803LOW

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

  AV  AC  AT  PR  UI  VC  VI  VA   CVSS    EPSS   %ile   KEV
   L   L   N   L   N   L   L   L    1.9   .0020    9.0     —

AFFECTED
  Product   Versions  Fixed
  Binutils  2.47 –    2.48

TIMELINE
  Sep 13  Reserved by VulDB
  Sep 14  Published (CNA: VulDB)
  Sep 18  EXPLOIT PUBLISHED — CVE-2026-90803 (GNU Binutils). Public exploit reference added.

CWE-119, CWE-120 · CNA: VulDB · CVSS v4.0 · 8 references · NVD status: Analyzed

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.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
September 13, 2026	Reserved	Reserved by VulDB
September 14, 2026	Published	Published (CNA: VulDB)
September 18, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-90803 (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-119 · CWE-120

References (8)

https://github.com/r1ck9-2q/cve_summit/blob/main/Heap%20OOB%20readwrite%20and%20SEGV%20in%20%60elf_x86_64_relocate_section%60%20(bfdelf64-x86-64.c4530%20%204835)%20via%20malformed%20relocation.md [Exploit, Mitigation, Third Party Advisory]
https://sourceware.org/bugzilla/show_bug.cgi?id=34444 [Exploit, Third Party Advisory]
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=471130b39c03623ec6d78ece377ff4da3f6bfe7b [Patch]
https://vuldb.com/cve/CVE-2026-90803 [Permissions Required, Third Party Advisory, VDB Entry]
https://vuldb.com/submit/920280 [Permissions Required, Third Party Advisory, VDB Entry]
https://vuldb.com/vuln/403305 [Permissions Required, Third Party Advisory, VDB Entry]
https://vuldb.com/vuln/403305/cti [Permissions Required, Third Party Advisory, VDB Entry]
https://www.gnu.org/ [Product]

Authoritative record: CVE-2026-90803 at cve.org

Vendors: gnu

Weaknesses: CWE-119 · CWE-120

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-90803 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.