CVE-2026-89612Critical· 9.8▾ MidnightIn the Linux kernel, the following vulnerability has been resolved: ntfs: reject invalid MFT LCNs from boot sector The NTFS boot sector stores the MFT and MFTMirr locations as unsigned 64-bit LCNs, but parse_ntfs_boot_sector() decoded …
▾ Midnight zone — Critical, or high with PoC / in-the-wild
impact 53.9 · likelihood 0.1 · exploitation 0
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Exploit-prediction probability, daily snapshots since Sep 12.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
0.2%
0.2% → 0.6%
— → 4.7
— → 9.8
none → critical
9.8 → 4.7
critical → medium
4.7 → 9.8
medium → critical
9.8 → 4.7
critical → medium
4.7 → 5.5
Last analysed / modified upstream
5.5 → 9.8
medium → critical
In the Linux kernel, the following vulnerability has been resolved:
ntfs: reject invalid MFT LCNs from boot sector
The NTFS boot sector stores the MFT and MFTMirr locations as unsigned 64-bit LCNs, but parse_ntfs_boot_sector() decoded them into an s64.
A crafted high-bit value could therefore become negative and pass the existing upper-bound check. The invalid value then propagated into the MFT zone allocator and could result in an out-of-bounds access to lcn_empty_bits_per_page.
Linux >= 11ccc9107dc460de28af90fac1f42404d9802735 < 8f8420b68a6f05ca2b03779d8208814ec539b9e5Linux >= 11ccc9107dc460de28af90fac1f42404d9802735 < cc9d09fef78410bcd37ac05168cbd5f6dd75d3d2Linux 7.1Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
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