CVE-2026-73076: Vim: Arbitrary Command Execution via Malicious `.VimballRecord` Entry Replay in `vimball.vim`
CSIRTS triage
- What
- Malicious `.VimballRecord` entries can be replayed to execute arbitrary commands via the vimball.vim plugin.
- Who is affected
- Vim users extracting or processing untrusted vimball package files.
- Urgency
- Unknown severity; update recommended as vimball handling may be a supply-chain attack vector.
- Action
- Update Vim and review vimball security settings or disable vimball support if not needed.
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-2026-73076
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-2026-730760.13% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 3% of all EPSS-scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-73076 | coverage & exploitation status | NVD · CVE.org |
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