01 Record

CVE-2023-53399

ksmbd: fix NULL pointer dereference in smb2_get_info_filesystem()

HighPUBLISHEDCNA: Linux

CNA base score7.5 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

View raw JSON

02 Description

ksmbd: fix NULL pointer dereference in smb2_get_info_filesystem()

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

0.28% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 19.9% of scored records. A rank, not a probability.

NVD base score

5.5 (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:N/I:N/A:H

NVD analysis status

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

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

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

2025-09-18 13:33Z11 MO AGO

Last updated

2026-08-05 09:13Z1 MO AGO

Reserved

2025-09-17

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 7.5)

CNA CVSS vector

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

Weaknesses

CWE-476NULL Pointer DereferenceBase

Data version

5.2

Document digest

b82b1c8c1f42dfb13ebb9317ec226eddf4b51f49b5ddd088d35c2320cdee305f

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux0626e6641f6b467447c81dd7678a69c66f7746cf to < 227eb2689b44d0d60da3839b146983e73435924c, 0626e6641f6b467447c81dd7678a69c66f7746cf to < a70751dd7b60eab025e97e19b6b2477c6eaf2bbb, 0626e6641f6b467447c81dd7678a69c66f7746cf to < b35f6c031b87d9e51f141ff6de0ea59756a8e313, 0626e6641f6b467447c81dd7678a69c66f7746cf to < 1636e09779f83e10e6ed57d91ef94abcefdd206b, 0626e6641f6b467447c81dd7678a69c66f7746cf to < 3ac00a2ab69b34189942afa9e862d5170cdcb018, 5.15—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/227eb2689b44d0d60da3839b146983e73435924c
git.kernel.orghttps://git.kernel.org/stable/c/a70751dd7b60eab025e97e19b6b2477c6eaf2bbb
git.kernel.orghttps://git.kernel.org/stable/c/b35f6c031b87d9e51f141ff6de0ea59756a8e313
git.kernel.orghttps://git.kernel.org/stable/c/1636e09779f83e10e6ed57d91ef94abcefdd206b
git.kernel.orghttps://git.kernel.org/stable/c/3ac00a2ab69b34189942afa9e862d5170cdcb018

01 Record index

CVE-2023-53399

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2023-53399

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References