CVE-2021-43618

HIGHNVD 7.57.5—

7.5

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.

CVSS v3: 7.5
EG Score: 7.5(medium)
EPSS: 64.4%
KEV: Not listed

Published

November 15, 2021

Last Modified

November 21, 2024

References (16)

cve@mitrehttp://seclists.org/fulldisclosure/2022/Oct/8
cve@mitrehttp://www.openwall.com/lists/oss-security/2022/10/13/3
cve@mitrehttps://bugs.debian.org/994405
cve@mitrehttps://gmplib.org/list-archives/gmp-bugs/2021-September/005077.html
cve@mitrehttps://gmplib.org/repo/gmp-6.2/rev/561a9c25298e
cve@mitrehttps://lists.debian.org/debian-lts-announce/2021/12/msg00001.html
cve@mitrehttps://security.gentoo.org/glsa/202309-13
cve@mitrehttps://security.netapp.com/advisory/ntap-20221111-0001/
af854a3a-2127-422b-91ae-364da2661108http://seclists.org/fulldisclosure/2022/Oct/8
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2022/10/13/3
af854a3a-2127-422b-91ae-364da2661108https://bugs.debian.org/994405
af854a3a-2127-422b-91ae-364da2661108https://gmplib.org/list-archives/gmp-bugs/2021-September/005077.html
af854a3a-2127-422b-91ae-364da2661108https://gmplib.org/repo/gmp-6.2/rev/561a9c25298e
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2021/12/msg00001.html
af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/202309-13

Patch Availability(8)

Vendor / Ecosystem	Fixed in / Patch	Released	Source
ubuntu	libgmp3-dev (2:6.1.0+dfsg-2ubuntu0.1~esm1) @ xenial	2026-05-26	ubuntu
ubuntu	libgmp-dev (2:5.1.3+dfsg-1ubuntu1+esm1) @ trusty	2026-05-26	ubuntu
redhat	gmp-1:6.1.2-11.el8	2024-05-22	redhat
redhat	openshift-logging/vector-rhel8:v0.28.1-57	2024-05-01	redhat
redhat	openshift-logging/vector-rhel8:v0.21.0-127	2024-05-01	redhat
redhat	gmp-1:6.1.2-11.el8_8.1	2024-03-19	redhat
redhat	gmp-1:6.1.2-11.el8_6.1	2024-03-05	redhat
redhat	gmp-1:6.2.0-13.el9	2023-11-07	redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-190Integer Overflow or Wraparound

All Vendor Advisories

(9)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 12× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-05 06:09 UTCepss_batch
2026-06-05 06:09 UTCepss_batch
2026-06-04 13:10 UTCepss_batch
2026-06-04 13:10 UTCepss_batch
2026-06-02 20:11 UTCepss_batch
2026-06-02 20:11 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-29 13:42 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:34 UTCEG score recompute

Frequently asked(5)

What is CVE-2021-43618?

CVE-2021-43618 is a high vulnerability published on November 15, 2021. 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.

When was CVE-2021-43618 disclosed?

CVE-2021-43618 was first published in the National Vulnerability Database on November 15, 2021, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2021-43618 actively exploited?

CVE-2021-43618 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 64.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-43618?

CVE-2021-43618 has a CVSS v3 base score of 7.5 (NVD).

How do I remediate CVE-2021-43618?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-43618, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2021-43618

Published

Last Modified

References (16)

Patch Availability(8)

Weakness Classification(1)

All Vendor Advisories

Data Freshness Timeline

Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2021-43618?

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Same CWE

CVE-2021-43618

📅 Published

🔄 Last Modified

🔗 References (16)

Patch Availability(8)

Weakness Classification(1)

All Vendor Advisories

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2021-43618?

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Frequently asked(5)

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