{"id":"CVE-2021-3778","url":"https://www.cyber-defence.io/tools/cve/CVE-2021-3778","generatedAt":"2026-10-27T18:48:55.611Z","title":"vim is vulnerable to Heap-based Buffer Overflow","description":"vim is vulnerable to Heap-based Buffer Overflow","published":"2021-09-15T08:15:07.000Z","lastModified":"2026-06-17T04:05:45.000Z","status":"Modified","sourceIdentifier":"security@huntr.dev","cvss":{"version":"3.1","score":7.8,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},"cwe":["CWE-122","CWE-787"],"affected":["vim/vim","fedoraproject/fedora","debian/debian linux","netapp/ontap select deploy administration utility"],"epss":{"score":0.01728,"percentile":0.7741,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (1.73%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"http://www.openwall.com/lists/oss-security/2021/10/01/1","tags":["Mailing List"],"source":"security@huntr.dev"},{"url":"https://github.com/vim/vim/commit/65b605665997fad54ef39a93199e305af2fe4d7f","tags":["Patch","Third Party Advisory"],"source":"security@huntr.dev"},{"url":"https://huntr.dev/bounties/d9c17308-2c99-4f9f-a706-f7f72c24c273","tags":["Exploit","Issue Tracking","Patch","Third Party Advisory"],"source":"security@huntr.dev"},{"url":"https://lists.debian.org/debian-lts-announce/2022/01/msg00003.html","tags":["Mailing List","Third Party Advisory"],"source":"security@huntr.dev"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7K4JJBIH3OQSZRVTWKCJCDLGMFGQ5DOH/","source":"security@huntr.dev"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/S42L4Z4DTW4LHLQ4FJ33VEOXRCBE7WN4/","source":"security@huntr.dev"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TE62UMYBZE4AE53K6OBBWK32XQ7544QM/","source":"security@huntr.dev"},{"url":"https://security.gentoo.org/glsa/202208-32","tags":["Third Party Advisory"],"source":"security@huntr.dev"},{"url":"https://security.netapp.com/advisory/ntap-20221118-0003/","tags":["Third Party Advisory"],"source":"security@huntr.dev"},{"url":"http://www.openwall.com/lists/oss-security/2021/10/01/1","tags":["Mailing List"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/vim/vim/commit/65b605665997fad54ef39a93199e305af2fe4d7f","tags":["Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://huntr.dev/bounties/d9c17308-2c99-4f9f-a706-f7f72c24c273","tags":["Exploit","Issue Tracking","Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2022/01/msg00003.html","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7K4JJBIH3OQSZRVTWKCJCDLGMFGQ5DOH/","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/S42L4Z4DTW4LHLQ4FJ33VEOXRCBE7WN4/","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TE62UMYBZE4AE53K6OBBWK32XQ7544QM/","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.gentoo.org/glsa/202208-32","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.netapp.com/advisory/ntap-20221118-0003/","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-3778","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}