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-2026-90801

CVE-2026-90801LOW

GNU Binutils ld cache.c cache_bwrite buffer overflow

  AV  AC  AT  PR  UI  VC  VI  VA   CVSS    EPSS   %ile   KEV
   L   L   N   L   N   L   L   L    1.9   .0021    9.8     —

AFFECTED
  Product   Versions  Fixed
  Binutils  2.47 –    —

TIMELINE
  Sep 13  Reserved by VulDB
  Sep 14  Published (CNA: VulDB)
  Sep 18  EXPLOIT PUBLISHED — CVE-2026-90801 (GNU Binutils). Public exploit reference added.

CWE-119, CWE-120 · CNA: VulDB · CVSS v4.0 · 7 references · NVD status: Analyzed

Description

A security flaw has been discovered in GNU Binutils 2.47. This impacts the function cache_bwrite of the file bfd/cache.c of the component ld. The manipulation of the argument nbytes results in buffer overflow. The attack requires a local approach. The exploit has been released to the public and may be used for attacks. The project was informed of the problem early through a bug report but has not responded yet.

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-2026-90801 (GNU Binutils). Public exploit reference added.

Affected

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

Weaknesses

CWE-119 · CWE-120

References (7)

https://github.com/r1ck9-2q/cve_summit/blob/main/Heap-buffer-overflow%20in%20%60cache_bwrite%60%20(bfdcache.c436)%20via%20malformed%20ELF%20with%20%60--gc-sections%20-w%60.md [Exploit, Mitigation, Third Party Advisory]
https://sourceware.org/bugzilla/show_bug.cgi?id=34442 [Exploit, Third Party Advisory]
https://vuldb.com/cve/CVE-2026-90801 [Permissions Required, Third Party Advisory, VDB Entry]
https://vuldb.com/submit/920276 [Permissions Required, Third Party Advisory, VDB Entry]
https://vuldb.com/vuln/403303 [Permissions Required, Third Party Advisory, VDB Entry]
https://vuldb.com/vuln/403303/cti [Permissions Required, Third Party Advisory, VDB Entry]
https://www.gnu.org/ [Product]

Authoritative record: CVE-2026-90801 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-2026-90801 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.