CVE-2023-1386
CSIRTS triage
- What
- The 9pfs implementation fails to drop suid and sgid bits when files are written, potentially allowing privilege escalation.
- Who is affected
- Systems running QEMU with 9pfs filesystem support enabled.
- Urgency
- Medium severity; no active exploitation reported but privilege escalation is a critical attack vector.
- Action
- Upgrade QEMU to a patched version once available.
AI-assisted analysis generated from the source advisory — verify against the original.
⚡ Watch CVE-2023-1386
Get an email if CVE-2023-1386 is added to CISA KEV, gains public exploit code, or a new advisory cites it — max one per day, one-click unsubscribe.
Exploitation outlook
- Low exploitation risk0.24% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 15% of all EPSS-scored CVEs.
Advisory coverage (1)
- mediumCVE-2023-1386: Qemu: 9pfs: suid/sgid bits not dropped on file writemsrc · 2026-08-06
External references
Embed the live status
— this badge updates automatically when the KEV or exploit status changes. How to embed it →
[](https://www.csirts.com/cve/CVE-2023-1386)