Description
In the Linux kernel, the following vulnerability has been resolved: ntfs3: fix out-of-bounds read in decompress_lznt decompress_lznt() does not validate array index bounds before accessing the decompression table. A corrupted NTFS3 image with invalid compressed data can trigger an out-of-bounds read. Add index bounds checking to prevent the OOB access.
References7
- git.kernel.org/stable/c/1113fa5b01a47a1a4cdbb9c695197ca6215f02a8
- git.kernel.org/stable/c/61415ffa365d2eca6986914afd0d1412444aa1dd
- git.kernel.org/stable/c/7160a57192fb16d7a6fa9b7f5c7ac341d2444a89
- git.kernel.org/stable/c/a93980141253c932aa6ae5d4422d90e0162dc774
- git.kernel.org/stable/c/bd77afca2ae9b6d44d37902e3ad672ebb028b070
- git.kernel.org/stable/c/c694f8ea2611e7413b3f04ee47e04a9b7b45817b
- git.kernel.org/stable/c/ff05a98150ebb2b03919a9c05c576681e86abbb7
Metrics
- CVSS 3.1
-
7.8
HIGH
Score source: CNA
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 0% percentile: 7 · as of 8 November 2026
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.