{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"state": "PUBLISHED", "cveId": "CVE-2021-3974", "assignerOrgId": "c09c270a-b464-47c1-9133-acb35b22c19a", "assignerShortName": "@huntrdev", "dateUpdated": "2026-10-08T21:03:10.853Z", "dateReserved": "2021-11-17T00:00:00.000Z", "datePublished": "2021-11-19T00:00:00.000Z"}, "containers": {"cna": {"title": "Use After Free in vim/vim", "providerMetadata": {"orgId": "c09c270a-b464-47c1-9133-acb35b22c19a", "shortName": "@huntrdev", "dateUpdated": "2022-11-08T00:00:00.000Z"}, "descriptions": [{"lang": "en", "value": "vim is vulnerable to Use After Free"}], "affected": [{"vendor": "vim", "product": "vim/vim", "versions": [{"version": "unspecified", "lessThan": "8.2.3612", "status": "affected", "versionType": "custom"}]}], "references": [{"url": "https://huntr.dev/bounties/e402cb2c-8ec4-4828-a692-c95f8e0de6d4"}, {"url": "https://github.com/vim/vim/commit/64066b9acd9f8cffdf4840f797748f938a13f2d6"}, {"name": "FEDORA-2021-5cd9df120e", "tags": ["vendor-advisory"], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IH2LS2DXBTYOCWGAKFMBF3HTWWXPBEFL/"}, {"name": "FEDORA-2021-b0ac29efb1", "tags": ["vendor-advisory"], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FNXY7T5OORA7UJIMGSJBGHFMU6UZWS6P/"}, {"name": "[oss-security] 20220114 Re: 3 new CVE's in vim", "tags": ["mailing-list"], "url": "http://www.openwall.com/lists/oss-security/2022/01/15/1"}, {"name": "[debian-lts-announce] 20220311 [SECURITY] [DLA 2947-1] vim security update", "tags": ["mailing-list"], "url": "https://lists.debian.org/debian-lts-announce/2022/03/msg00018.html"}, {"name": "GLSA-202208-32", "tags": ["vendor-advisory"], "url": "https://security.gentoo.org/glsa/202208-32"}, {"name": "[debian-lts-announce] 20221108 [SECURITY] [DLA 3182-1] vim security update", "tags": ["mailing-list"], "url": "https://lists.debian.org/debian-lts-announce/2022/11/msg00009.html"}], "metrics": [{"cvssV3_0": {"version": "3.0", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:H", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseScore": 7.3, "baseSeverity": "HIGH"}}], "problemTypes": [{"descriptions": [{"type": "CWE", "lang": "en", "description": "CWE-416 Use After Free", "cweId": "CWE-416"}]}], "source": {"advisory": "e402cb2c-8ec4-4828-a692-c95f8e0de6d4", "discovery": "EXTERNAL"}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T17:09:09.885Z"}, "title": "CVE Program Container", "references": [{"url": "https://huntr.dev/bounties/e402cb2c-8ec4-4828-a692-c95f8e0de6d4", "tags": ["x_transferred"]}, {"url": "https://github.com/vim/vim/commit/64066b9acd9f8cffdf4840f797748f938a13f2d6", "tags": ["x_transferred"]}, {"name": "FEDORA-2021-5cd9df120e", "tags": ["vendor-advisory", "x_transferred"], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IH2LS2DXBTYOCWGAKFMBF3HTWWXPBEFL/"}, {"name": "FEDORA-2021-b0ac29efb1", "tags": ["vendor-advisory", "x_transferred"], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FNXY7T5OORA7UJIMGSJBGHFMU6UZWS6P/"}, {"name": "[oss-security] 20220114 Re: 3 new CVE's in vim", "tags": ["mailing-list", "x_transferred"], "url": "http://www.openwall.com/lists/oss-security/2022/01/15/1"}, {"name": "[debian-lts-announce] 20220311 [SECURITY] [DLA 2947-1] vim security update", "tags": ["mailing-list", "x_transferred"], "url": "https://lists.debian.org/debian-lts-announce/2022/03/msg00018.html"}, {"name": "GLSA-202208-32", "tags": ["vendor-advisory", "x_transferred"], "url": "https://security.gentoo.org/glsa/202208-32"}, {"name": "[debian-lts-announce] 20221108 [SECURITY] [DLA 3182-1] vim security update", "tags": ["mailing-list", "x_transferred"], "url": "https://lists.debian.org/debian-lts-announce/2022/11/msg00009.html"}]}, {"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2021-3974", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-10-08T20:54:02.957252Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-08T21:03:10.853Z"}}]}}

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"state": "PUBLISHED", "cveId": "CVE-2021-3974", "assignerOrgId": "c09c270a-b464-47c1-9133-acb35b22c19a", "assignerShortName": "@huntrdev", "dateUpdated": "2026-10-08T21:03:10.853Z", "dateReserved": "2021-11-17T00:00:00.000Z", "datePublished": "2021-11-19T00:00:00.000Z"}, "containers": {"cna": {"title": "Use After Free in vim/vim", "providerMetadata": {"orgId": "c09c270a-b464-47c1-9133-acb35b22c19a", "shortName": "@huntrdev", "dateUpdated": "2022-11-08T00:00:00.000Z"}, "descriptions": [{"lang": "en", "value": "vim is vulnerable to Use After Free"}], "affected": [{"vendor": "vim", "product": "vim/vim", "versions": [{"version": "unspecified", "lessThan": "8.2.3612", "status": "affected", "versionType": "custom"}]}], "references": [{"url": "https://huntr.dev/bounties/e402cb2c-8ec4-4828-a692-c95f8e0de6d4"}, {"url": "https://github.com/vim/vim/commit/64066b9acd9f8cffdf4840f797748f938a13f2d6"}, {"name": "FEDORA-2021-5cd9df120e", "tags": ["vendor-advisory"], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IH2LS2DXBTYOCWGAKFMBF3HTWWXPBEFL/"}, {"name": "FEDORA-2021-b0ac29efb1", "tags": ["vendor-advisory"], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FNXY7T5OORA7UJIMGSJBGHFMU6UZWS6P/"}, {"name": "[oss-security] 20220114 Re: 3 new CVE's in vim", "tags": ["mailing-list"], "url": "http://www.openwall.com/lists/oss-security/2022/01/15/1"}, {"name": "[debian-lts-announce] 20220311 [SECURITY] [DLA 2947-1] vim security update", "tags": ["mailing-list"], "url": "https://lists.debian.org/debian-lts-announce/2022/03/msg00018.html"}, {"name": "GLSA-202208-32", "tags": ["vendor-advisory"], "url": "https://security.gentoo.org/glsa/202208-32"}, {"name": "[debian-lts-announce] 20221108 [SECURITY] [DLA 3182-1] vim security update", "tags": ["mailing-list"], "url": "https://lists.debian.org/debian-lts-announce/2022/11/msg00009.html"}], "metrics": [{"cvssV3_0": {"version": "3.0", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:H", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseScore": 7.3, "baseSeverity": "HIGH"}}], "problemTypes": [{"descriptions": [{"type": "CWE", "lang": "en", "description": "CWE-416 Use After Free", "cweId": "CWE-416"}]}], "source": {"advisory": "e402cb2c-8ec4-4828-a692-c95f8e0de6d4", "discovery": "EXTERNAL"}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T17:09:09.885Z"}, "title": "CVE Program Container", "references": [{"url": "https://huntr.dev/bounties/e402cb2c-8ec4-4828-a692-c95f8e0de6d4", "tags": ["x_transferred"]}, {"url": "https://github.com/vim/vim/commit/64066b9acd9f8cffdf4840f797748f938a13f2d6", "tags": ["x_transferred"]}, {"name": "FEDORA-2021-5cd9df120e", "tags": ["vendor-advisory", "x_transferred"], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IH2LS2DXBTYOCWGAKFMBF3HTWWXPBEFL/"}, {"name": "FEDORA-2021-b0ac29efb1", "tags": ["vendor-advisory", "x_transferred"], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FNXY7T5OORA7UJIMGSJBGHFMU6UZWS6P/"}, {"name": "[oss-security] 20220114 Re: 3 new CVE's in vim", "tags": ["mailing-list", "x_transferred"], "url": "http://www.openwall.com/lists/oss-security/2022/01/15/1"}, {"name": "[debian-lts-announce] 20220311 [SECURITY] [DLA 2947-1] vim security update", "tags": ["mailing-list", "x_transferred"], "url": "https://lists.debian.org/debian-lts-announce/2022/03/msg00018.html"}, {"name": "GLSA-202208-32", "tags": ["vendor-advisory", "x_transferred"], "url": "https://security.gentoo.org/glsa/202208-32"}, {"name": "[debian-lts-announce] 20221108 [SECURITY] [DLA 3182-1] vim security update", "tags": ["mailing-list", "x_transferred"], "url": "https://lists.debian.org/debian-lts-announce/2022/11/msg00009.html"}]}, {"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2021-3974", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-10-08T20:54:02.957252Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-08T20:54:03.944Z"}, "title": "CISA ADP Vulnrichment"}]}}

{"affected": [{"affectedData": [{"product": "vim/vim", "vendor": "vim", "versions": [{"lessThan": "8.2.3612", "status": "affected", "version": "unspecified", "versionType": "custom"}]}], "source": "security@huntr.dev"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:vim:vim:*:*:*:*:*:*:*:*", "matchCriteriaId": "7422868F-DDB7-4497-9F60-087B3FB1F176", "versionEndExcluding": "8.2.3612", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*", "matchCriteriaId": "A930E247-0B43-43CB-98FF-6CE7B8189835", "vulnerable": true}, {"criteria": "cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*", "matchCriteriaId": "80E516C0-98A4-4ADE-B69F-66A772E2BAAA", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*", "matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252", "vulnerable": true}, {"criteria": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*", "matchCriteriaId": "07B237A9-69A3-4A9C-9DA0-4E06BD37AE73", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "vim is vulnerable to Use After Free"}, {"lang": "es", "value": "vim es vulnerable a un Uso de Memoria previamente Liberada"}], "id": "CVE-2021-3974", "lastModified": "2026-10-08T21:17:41.590", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 6.8, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 8.6, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": true}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.3, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:H", "version": "3.0"}, "exploitabilityScore": 1.8, "impactScore": 5.5, "source": "security@huntr.dev", "type": "Secondary"}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2021-3974", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-10-08T20:54:02.957252Z", "version": "2.0.3"}}]}, "published": "2021-11-19T11:15:07.770", "references": [{"source": "security@huntr.dev", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2022/01/15/1"}, {"source": "security@huntr.dev", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/vim/vim/commit/64066b9acd9f8cffdf4840f797748f938a13f2d6"}, {"source": "security@huntr.dev", "tags": ["Exploit", "Issue Tracking", "Patch", "Third Party Advisory"], "url": "https://huntr.dev/bounties/e402cb2c-8ec4-4828-a692-c95f8e0de6d4"}, {"source": "security@huntr.dev", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2022/03/msg00018.html"}, {"source": "security@huntr.dev", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2022/11/msg00009.html"}, {"source": "security@huntr.dev", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FNXY7T5OORA7UJIMGSJBGHFMU6UZWS6P/"}, {"source": "security@huntr.dev", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IH2LS2DXBTYOCWGAKFMBF3HTWWXPBEFL/"}, {"source": "security@huntr.dev", "tags": ["Third Party Advisory"], "url": "https://security.gentoo.org/glsa/202208-32"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2022/01/15/1"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/vim/vim/commit/64066b9acd9f8cffdf4840f797748f938a13f2d6"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Issue Tracking", "Patch", "Third Party Advisory"], "url": "https://huntr.dev/bounties/e402cb2c-8ec4-4828-a692-c95f8e0de6d4"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2022/03/msg00018.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2022/11/msg00009.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FNXY7T5OORA7UJIMGSJBGHFMU6UZWS6P/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IH2LS2DXBTYOCWGAKFMBF3HTWWXPBEFL/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://security.gentoo.org/glsa/202208-32"}], "sourceIdentifier": "security@huntr.dev", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}], "source": "security@huntr.dev", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-416"}], "source": "nvd@nist.gov", "type": "Secondary"}]}

{"bugzilla": {"description": "vim: Use after free in regexp_nfa.c", "id": "2025061", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2025061"}, "csaw": false, "cvss3": {"cvss3_base_score": "2.9", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L", "status": "draft"}, "cwe": "CWE-416", "details": ["vim is vulnerable to Use After Free", "A flaw was found in vim. A possible use-after-free vulnerability could allow an attacker to input a specially crafted file leading to a crash or code execution. The highest threat from this vulnerability is to system availability."], "mitigation": {"lang": "en:us", "value": "Do not run untrusted vim scripts with -s {scriptin} as it is never safe to do so."}, "name": "CVE-2021-3974", "package_state": [{"cpe": "cpe:/a:redhat:acm:2", "fix_state": "Not affected", "package_name": "rhacm2/openshift-hive-rhel8", "product_name": "Red Hat Advanced Cluster Management for Kubernetes 2"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "vim", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "vim", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "vim", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "vim", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2021-11-19T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-3974\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-3974"], "statement": "Red Hat Product Security has rated this issue as having a Low security impact, because the \"victim\" has to run an untrusted file IN SCRIPT MODE, which is a huge security risk to begin with.", "threat_severity": "Low"}

{}