01 Record

CVE-2024-26594

ksmbd: validate mech token in session setup

CriticalPUBLISHEDCNA: Linux

CNA base score9.1 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

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02 Description

ksmbd: validate mech token in session setup

03 Exploitation and scoring

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

51.24% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 98.9% of scored records. A rank, not a probability.

NVD base score

7.1 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-08-04.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2024-02-23 13:26Z2 YR AGO

Last updated

2026-08-05 11:26Z2 MO AGO

Reserved

2024-02-19

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Critical (CVSS 9.1)

CNA CVSS vector

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

Weaknesses

CWE-125Out-of-bounds ReadBase

Data version

5.2

Document digest

26795a90361dc904e1f4ca66f1ca954faef0e1a9ccb44f9a9107d943377f27ce

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux0626e6641f6b467447c81dd7678a69c66f7746cf to < dd1de9268745f0eac83a430db7afc32cbd62e84b, 0626e6641f6b467447c81dd7678a69c66f7746cf to < 6eb8015492bcc84e40646390e50a862b2c0529c9, 0626e6641f6b467447c81dd7678a69c66f7746cf to < a2b21ef1ea4cf632d19b3a7cc4d4245b8e63202a, 0626e6641f6b467447c81dd7678a69c66f7746cf to < 5e6dfec95833edc54c48605a98365a7325e5541e, 0626e6641f6b467447c81dd7678a69c66f7746cf to < 92e470163d96df8db6c4fa0f484e4a229edb903d, 5.15—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/dd1de9268745f0eac83a430db7afc32cbd62e84b
git.kernel.orghttps://git.kernel.org/stable/c/6eb8015492bcc84e40646390e50a862b2c0529c9
git.kernel.orghttps://git.kernel.org/stable/c/a2b21ef1ea4cf632d19b3a7cc4d4245b8e63202a
git.kernel.orghttps://git.kernel.org/stable/c/5e6dfec95833edc54c48605a98365a7325e5541e
git.kernel.orghttps://git.kernel.org/stable/c/92e470163d96df8db6c4fa0f484e4a229edb903d

07 Fixed in

Debian 12

linux
Fixed in 6.1.76-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

linux
Fixed in 6.6.15-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

linux
Fixed in 6.6.15-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.