CVE-2021-3984
HIGHCVSS 7.8/10EPSS 1.46%
Last modified
CVE-2021-3984 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. vim is vulnerable to Heap-based Buffer Overflow. EPSS estimates a 1.46% chance of exploitation in the next 30 days.
Description
vim is vulnerable to Heap-based Buffer Overflow
Metrics
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Vim | Vim | < 8.2.3625 |
| Fedoraproject | Fedora | 34 |
| Debian | Debian Linux | 9.0 |
| Debian | Debian Linux | 10.0 |
References
- http://www.openwall.com/lists/oss-security/2022/01/15/1Mailing List, Third Party Advisory
- https://github.com/vim/vim/commit/2de9b7c7c8791da8853a9a7ca9c467867465b655Patch, Third Party Advisory
- https://huntr.dev/bounties/b114b5a2-18e2-49f0-b350-15994d71426aExploit, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/03/msg00018.htmlMitigation, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/11/msg00009.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202208-32Third Party Advisory
- http://www.openwall.com/lists/oss-security/2022/01/15/1Mailing List, Third Party Advisory
- https://github.com/vim/vim/commit/2de9b7c7c8791da8853a9a7ca9c467867465b655Patch, Third Party Advisory
- https://huntr.dev/bounties/b114b5a2-18e2-49f0-b350-15994d71426aExploit, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/03/msg00018.htmlMitigation, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/11/msg00009.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202208-32Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-3984?
vim is vulnerable to Heap-based Buffer Overflow
How severe is CVE-2021-3984?
CVE-2021-3984 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 1.46% probability of exploitation in the next 30 days.
How do I fix CVE-2021-3984?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2021
- CVE-2021-39834Adobe Framemaker versions 2019 Update 8 (and earlier) and 20…3.3
- CVE-2021-39835Adobe Framemaker versions 2019 Update 8 (and earlier) and 20…4.3
- CVE-2021-39836Acrobat Reader DC versions 2021.005.20060 (and earlier), 202…7.8
- CVE-2021-39837Acrobat Reader DC versions 2021.005.20060 (and earlier), 202…7.8
- CVE-2021-39838Acrobat Reader DC versions 2021.005.20060 (and earlier), 202…7.8
- CVE-2021-39839Acrobat Reader DC versions 2021.005.20060 (and earlier), 202…7.8
- CVE-2021-39840Acrobat Reader DC versions 2021.005.20060 (and earlier), 202…7.8
- CVE-2021-39841Acrobat Reader DC versions 2021.005.20060 (and earlier), 202…7.8
- CVE-2021-39842Acrobat Reader DC versions 2021.005.20060 (and earlier), 202…7.8
- CVE-2021-39843Acrobat Reader DC versions 2021.005.20060 (and earlier), 202…7.8
- CVE-2021-39844Acrobat Reader DC versions 2021.005.20060 (and earlier), 202…3.3
- CVE-2021-39845Acrobat Reader DC versions 2021.005.20060 (and earlier), 202…6.1
Are you affected by CVE-2021-3984?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST