CVE-2026-55892: Vim: Out-of-bounds Write in Spell File Prefix Dump
CSIRTS triage
- What
- There is an out-of-bounds write vulnerability in the Spell File Prefix Dump feature.
- Who is affected
- Deployments using Vim with spell file features enabled.
- Urgency
- Remediation is medium urgency due to the medium severity rating.
- Action
- Update Vim to the latest version.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55892
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2026-558920.12% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 2% of all EPSS-scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-55892 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
- medium[UPDATE] [medium] vim: Multiple vulnerabilitiescert-bund
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