CVE-2026-73071: Vim: Use-after-free in JSON Decoding
CSIRTS triage
- What
- Use-after-free vulnerability in JSON decoding can cause crash or code execution.
- Who is affected
- Systems running Vim versions with JSON decoding functionality.
- Urgency
- Low severity (CVSS 3.3); not exploited; memory safety issue in optional feature.
- Action
- Update Vim to patched version addressing use-after-free in JSON decoder.
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-2026-73071
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-2026-730710.11% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 1% of all EPSS-scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-73071 | coverage & exploitation status | NVD · CVE.org |
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