CVE-2026-72207
Linux kernel NTFS bug can corrupt NTFS volumes, causing file loss.
Is CVE-2026-72207 being exploited?
Not confirmed. CVE-2026-72207 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-2026-72207?
CVE-2026-72207 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-2026-72207?
Yes. A fix has been recorded for CVE-2026-72207. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-72207 affect?
CVE-2026-72207 affects Linux kernel NTFS implementation (ntfs_resident_attr_resize), Linux hosts mounting NTFS partitions, External NTFS drives/Windows partitions accessed from Linux. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-72207?
Apply kernel update with fix, unmount NTFS volumes and backup data.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Mount/write operations can produce 0-byte non-resident $DATA, corrupt MFT and cause file loss or filesystem DoS on NTFS volumes.
Immediate action required
- affected>= 495e90fa334828d4119061e2726af51d0a0fb4ed and < ceb49c37250125d418410988f2376ed4d57a6706
- affected>= 495e90fa334828d4119061e2726af51d0a0fb4ed and < 0aad21570197973af4a1b25b3fb8ed3aeb9e7670
- 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.