CVE-2026-72210
Linux NTFS off‑by‑one allows one‑byte kernel OOB read — crash or info leak.
Is CVE-2026-72210 being exploited?
Not confirmed. CVE-2026-72210 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.52% probability of exploitation in the next 30 days.
How severe is CVE-2026-72210?
CVE-2026-72210 is rated Critical with a CVSS score of 9.8. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-72210?
Yes. A fix has been recorded for CVE-2026-72210. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-72210 affect?
CVE-2026-72210 affects Linux kernel (ntfs mapping_pairs decoder / ntfs ntfs3 driver). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-72210?
Apply kernel updates with the ntfs fix and avoid mounting untrusted NTFS media.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Mounting or reading crafted NTFS data can trigger a one‑byte OOB kernel read, causing crashes, info disclosure and possible local privilege escalation.
Immediate action required
- affected>= 1e9ea7e04472d4e5e12e58c881eaacfb3e49b669 and < bfe835e535fe0aa5767fdd8116f62e835ba50b55
- affected>= 1e9ea7e04472d4e5e12e58c881eaacfb3e49b669 and < 18760a74ef7c28df93726445b5595162e62ed341
- affected7.1
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.