CVE-2026-89616 Linux Kernel - Information Disclosure

Linux kernel contains an information disclosure vulnerability in fs/ntfs3 due to uninitialized memory leak on partial LZNT decompression in ni_read_frame(), letting local attackers leak kernel memory and defeat KASLR, exploit requires crafted compressed file.

CVSS base score 7.5 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.41% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Information Disclosure
Impact
Information Disclosure
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Published
11 September 2026
Updated
15 October 2026

Vendor fix

Update to the latest Linux kernel version containing the fix.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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