Buffer overflow in Vim
CVE-2021-3927
vim is vulnerable to Heap-based Buffer Overflow
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.017 (76.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 76th percentile — 76.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.017 · newest: 0.017 · change: 0.000
Affected products
- Vim
- Vim Vim/vim — versions unspecified
- Debian Linux — versions 9.0, 10.0
- Fedoraproject Fedora — versions 33, 34, 35
Weakness classification (CWE)
Public proof-of-concept exploits
References
- huntr.dev/bounties/9c2b2c82-48bb-4be9-ab8f-a48ea252d1b0 (Exploit, Patch, Third Party Advisory)
- github.com/vim/vim/commit/0b5b06cb4777d1401fdf83e7d48d287662236e7e (Patch, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- www.openwall.com/lists/oss-security/2022/01/15/1 (mailing-list, Mailing List, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2022/03/msg00018.html (mailing-list, Mailing List, Third Party Advisory)
- security.gentoo.org/glsa/202208-32 (vendor-advisory, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2022/11/msg00009.html (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-3927?
- CVE-2021-3927 is a high-severity vulnerability in Vim, classified under Heap-based Buffer Overflow. CVSS score: 7.8/10. Published 2021-11-05.
- How severe is CVE-2021-3927?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2021-3927 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.