CVE-2023-48234 — Vim is an open source command line text editor

Vim is an open source command line text editor. When getting the count for a normal mode z command, it may overflow for large counts given. Impact is low, user interaction is required and a crash may not even happen in all situations. This issue has been addressed in commit `58f9

01What is this vulnerability?

Vim is an open source command line text editor. When getting the count for a normal mode z command, it may overflow for large counts given. Impact is low, user interaction is required and a crash may not even happen in all situations. This issue has been addressed in commit `58f9befca1` which has been included in release version 9.0.2109. Users are advised to upgrade. There are no known…

02Affected products

No structured affected-product list available — see references below for vendor advisories.

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2023-11-16T23:15:09.200
• Last modified: 2026-06-23T18:17:34.790

09References

• www.openwall.com — http://www.openwall.com/lists/oss-security/2023/11/16/1
• github.com — https://github.com/vim/vim/commit/58f9befca1fa172068effad7f2ea5a9d6a7b0cca
• github.com — https://github.com/vim/vim/security/advisories/GHSA-59gw-c949-6phq
• lists.fedoraproject.org — https://lists.fedoraproject.org/archives/list/[email protected]…
• lists.fedoraproject.org — https://lists.fedoraproject.org/archives/list/[email protected]…
• lists.fedoraproject.org — https://lists.fedoraproject.org/archives/list/[email protected]…
• security.netapp.com — https://security.netapp.com/advisory/ntap-20231227-0004/
• www.openwall.com — http://www.openwall.com/lists/oss-security/2023/11/16/1
• github.com — https://github.com/vim/vim/commit/58f9befca1fa172068effad7f2ea5a9d6a7b0cca
• github.com — https://github.com/vim/vim/security/advisories/GHSA-59gw-c949-6phq