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-2021-43618

CVE-2021-43618HIGH

n/a n/a — GNU Multiple Precision Arithmetic Library (GMP) through 6.2.1 has an mpz/inp_raw.c integer overflow and resultant buffer overflow via cra…

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   L   N   N  U  N  N  H    7.5   .0446   91.3     —

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

TIMELINE
  Nov 15  Reserved by mitre
  Nov 15  Published (CNA: mitre)
  Oct 14  ENRICHED — CVE-2021-43618. Received CVSS 7.5 and CPE data from NVD.
  Oct 14  EXPLOIT PUBLISHED — CVE-2021-43618. Public exploit reference added.

CWE-190 · CNA: mitre · CVSS v3.1 · 9 references · NVD status: Modified

Description

GNU Multiple Precision Arithmetic Library (GMP) through 6.2.1 has an mpz/inp_raw.c integer overflow and resultant buffer overflow via crafted input, leading to a segmentation fault on 32-bit platforms.

Lifecycle

Complete event history — 4 events, chronological
Date	Event	Detail
November 15, 2021	Reserved	Reserved by mitre
November 15, 2021	Published	Published (CNA: mitre)
October 14, 2026	ENRICHED	ENRICHED — CVE-2021-43618. Received CVSS 7.5 and CPE data from NVD.
October 14, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2021-43618. 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-190

References (9)

http://seclists.org/fulldisclosure/2022/Oct/8 [Mailing List, Third Party Advisory]
http://www.openwall.com/lists/oss-security/2022/10/13/3 [Mailing List, Third Party Advisory]
https://bugs.debian.org/994405 [Mailing List, Third Party Advisory]
https://cert-portal.siemens.com/productcert/html/ssa-398330.html
https://gmplib.org/list-archives/gmp-bugs/2021-September/005077.html [Exploit, Third Party Advisory]
https://gmplib.org/repo/gmp-6.2/rev/561a9c25298e [Patch, Third Party Advisory]
https://lists.debian.org/debian-lts-announce/2021/12/msg00001.html [Mailing List, Third Party Advisory]
https://security.gentoo.org/glsa/202309-13
https://security.netapp.com/advisory/ntap-20221111-0001/ [Third Party Advisory]

Authoritative record: CVE-2021-43618 at cve.org

Weaknesses: CWE-190

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2021-43618 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.