What is CVE-2022-1771?

CVE-2022-1771 is a medium-severity vulnerability in Vim, classified under Uncontrolled Recursion. CVSS score: 5.5/10. Published 2022-05-18.

How severe is CVE-2022-1771?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Vulnerability in Vim

CVE-2022-1771

Uncontrolled Recursion in GitHub repository vim/vim prior to 8.2.4975.

Published 2022-05-18 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.012 (67.1th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 67th percentile — 67.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: -0.000

Affected products

Vim
Vim Vim/vim — versions unspecified

Weakness classification (CWE)

CWE-674 — Uncontrolled Recursion

References

huntr.dev/bounties/faa74175-5317-4b71-a363-dfc39094ecbb (Exploit, Third Party Advisory)
github.com/vim/vim/commit/51f0bfb88a3554ca2dde777d78a59880d1ee37a8 (Patch, Third Party Advisory)
security.gentoo.org/glsa/202208-32 (vendor-advisory, Third Party Advisory)
security.gentoo.org/glsa/202305-16 (vendor-advisory)

Frequently asked questions

What is CVE-2022-1771?: CVE-2022-1771 is a medium-severity vulnerability in Vim, classified under Uncontrolled Recursion. CVSS score: 5.5/10. Published 2022-05-18.
How severe is CVE-2022-1771?: Medium severity. CVSS v3 base score is 5.5 out of 10.