Affects the Linux kernel (ubiquitous OS core). Kernel OOB bugs can cause widespread DoS or data disclosure; high CVSS and fix committed—worthy of broad IT distribution.
CVE-2026-89614
Out-of-bounds read in Linux ntfs driver can crash kernel or disclose memory.
Is CVE-2026-89614 being exploited?
Not confirmed. CVE-2026-89614 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 0.41% probability of exploitation in the next 30 days.
How severe is CVE-2026-89614?
CVE-2026-89614 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-2026-89614?
Yes. A fix has been recorded for CVE-2026-89614. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-89614 affect?
CVE-2026-89614 affects Linux kernel (ntfs/ntfs3 driver), Systems mounting NTFS volumes, Hosts/VMs/containers using affected kernels. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-89614?
Install kernel updates that include the ntfs fix; avoid mounting untrusted NTFS images.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
OOB read in ntfs driver can trigger kernel crash (DoS) or memory disclosure when mounting/expanding files on crafted NTFS images.
Immediate action required
- affected>= 11ccc9107dc460de28af90fac1f42404d9802735 and < dc15a9f5307d5372aef3b64bf3ed7802f530c471
- affected>= 11ccc9107dc460de28af90fac1f42404d9802735 and < 19cac7902a8ab748e15f98ddaafcf5f8882be21d
- 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.