Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2022-27943

CVE-2022-27943MEDIUM

n/a n/a — libiberty/rust-demangle.c in GNU GCC 11.2 allows stack consumption in demangle_const, as demonstrated by nm-new.

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   L   L   N   R  U  N  N  H    5.5   .0095   60.6     —

AFFECTED
  Product  Versions  Fixed
  n/a      n/a –     —

TIMELINE
  Mar 26  Reserved by mitre
  Mar 26  Published (CNA: mitre)
  Oct 8   EXPLOIT PUBLISHED — CVE-2022-27943. Public exploit reference added.
  Oct 14  EXPLOIT PUBLISHED — CVE-2022-27943. Public exploit reference added.

CWE-674 · CNA: mitre · CVSS v3.1 · 4 references · NVD status: Modified

Description

libiberty/rust-demangle.c in GNU GCC 11.2 allows stack consumption in demangle_const, as demonstrated by nm-new.

Lifecycle

Complete event history — 4 events, chronological
Date	Event	Detail
March 26, 2022	Reserved	Reserved by mitre
March 26, 2022	Published	Published (CNA: mitre)
October 8, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2022-27943. Public exploit reference added.
October 14, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2022-27943. Public exploit reference added.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
n/a	n/a	—	n/a	—

Weaknesses

CWE-674

References (4)

https://cert-portal.siemens.com/productcert/html/ssa-398330.html
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105039 [Exploit, Issue Tracking, Vendor Advisory]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/H424YXGW7OKXS2NCAP35OP6Y4P4AW6VG/
https://sourceware.org/bugzilla/show_bug.cgi?id=28995 [Exploit, Issue Tracking, Third Party Advisory]

Authoritative record: CVE-2022-27943 at cve.org

Weaknesses: CWE-674

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2022-27943 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 Monday, October 19, 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.