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CVE

DEBIAN-CVE-2026-74521

In the Linux kernel, the following vulnerability has been resolved: ksmbd: use memcmp() to compare ClientGUIDs ClientGUID is a fixed-size binary value and can contain embedded NUL bytes.
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CVE

DEBIAN-CVE-2026-74521

In the Linux kernel, the following vulnerability has been resolved: ksmbd: use memcmp() to compare ClientGUIDs ClientGUID is a fixed-size binary value and can contain embedded NUL bytes.

In the Linux kernel, the following vulnerability has been resolved:  ksmbd: use memcmp() to compare ClientGUIDs  ClientGUID is a fixed-size binary value and can contain embedded NUL bytes. strncmp() stops comparing at the first NUL byte, so different ClientGUID values can incorrectly be treated as equal.  Use memcmp() in SMB3 multichannel session binding and FSCTLVALIDATENEGOTIATEINFO to compare all SMB2CLIENTGUIDSIZE bytes.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
-
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
C
H
U
-

Related Resources

No items found.

References

https://security-tracker.debian.org/tracker/CVE-2026-74521

Severity

9.1

CVSS Score
0
10

Basic Information

Base CVSS
9.1
EPSS Probability
0%
EPSS Percentile
0%
Introduced Version
0
Fix Available
7.1.8-1

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