CVE-2023-48706
low-risk
Published 2023-11-22
Vim is a UNIX editor that, prior to version 9.0.2121, has a heap-use-after-free vulnerability. When executing a `:s` command for the very first time and using a sub-replace-special atom inside the substitution part, it is possible that the recursive `:s` call causes free-ing of memory which may later then be accessed by the initial `:s` command. The user must intentionally execute the payload and the whole process is a bit tricky to do since it seems to work only reliably for the very first :s command. It may also cause a crash of Vim. Version 9.0.2121 contains a fix for this issue.
Do I need to act?
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0.13% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
3
CVSS 3.6/10
Low
LOCAL
/ HIGH complexity
Affected Products (1)
Affected Vendors
References (16)
Issue Tracking
https://github.com/vim/vim/pull/13552
Issue Tracking
https://github.com/vim/vim/pull/13552
15
/ 100
low-risk
Severity
9/34 · Low
Exploitability
1/34 · Minimal
Exposure
5/34 · Minimal