CVE-2026-53017
CSIRTS triage
- What
- Data loss can occur due to incorrect use of the nat_entry flag in f2fs.
- Who is affected
- Users of f2fs are affected by this issue.
- Urgency
- Critical urgency for remediation due to the high severity of potential data loss.
- Action
- Implement the fix for the incorrect use of the nat_entry flag.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.16% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 6% of all EPSS-scored CVEs.
Advisory coverage (1)
- criticalCVE-2026-53017: f2fs: fix data loss caused by incorrect use of nat_entry flagmsrc · 2026-06-09
External references
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[](https://www.csirts.com/cve/CVE-2026-53017)