CVE-2026-80598

high

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.

References

https://git.kernel.org/stable/c/ff05a98150ebb2b03919a9c05c576681e86abbb7

https://git.kernel.org/stable/c/c694f8ea2611e7413b3f04ee47e04a9b7b45817b

https://git.kernel.org/stable/c/bd77afca2ae9b6d44d37902e3ad672ebb028b070

https://git.kernel.org/stable/c/a93980141253c932aa6ae5d4422d90e0162dc774

https://git.kernel.org/stable/c/7160a57192fb16d7a6fa9b7f5c7ac341d2444a89

https://git.kernel.org/stable/c/61415ffa365d2eca6986914afd0d1412444aa1dd

https://git.kernel.org/stable/c/1113fa5b01a47a1a4cdbb9c695197ca6215f02a8

Details

Source: Mitre, NVD

Published: 2026-08-28

Updated: 2026-08-28

Risk Information

CVSS v2

Base Score: 6.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:P

Severity: Medium

CVSS v3

Base Score: 7.1

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Severity: High

EPSS

EPSS: 0.00172