01 Record

CVE-2023-52755

ksmbd: fix slab out of bounds write in smb_inherit_dacl()

CriticalPUBLISHEDCNA: Linux

CNA base score9.8 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

View raw JSON

02 Description

ksmbd: fix slab out of bounds write in smb_inherit_dacl()

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 ImpacttotalSuccessful exploitation gives total 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

27.93% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 97.9% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

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

Red Hat severity

Important. 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

2024-05-21 15:30Z2 YR AGO

Last updated

2026-08-05 09:11Z1 MO AGO

Reserved

2024-05-21

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Critical (CVSS 9.8)

CNA CVSS vector

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

Weaknesses

CWE-787Out-of-bounds WriteBase

Data version

5.2

Document digest

3fe51bcdd16c009552c425f2098815aca9631cb02eb2ad1e784dbc6b7fd873eb

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux0626e6641f6b467447c81dd7678a69c66f7746cf to < aaf0a07d60887d6c36fc46a24de0083744f07819, 0626e6641f6b467447c81dd7678a69c66f7746cf to < 8387c94d73ec66eb597c7a23a8d9eadf64bfbafa, 0626e6641f6b467447c81dd7678a69c66f7746cf to < 09d9d8b40a3338193619c14ed4dc040f4f119e70, 0626e6641f6b467447c81dd7678a69c66f7746cf to < 712e01f32e577e7e48ab0adb5fe550646a3d93cb, 0626e6641f6b467447c81dd7678a69c66f7746cf to < eebff19acaa35820cb09ce2ccb3d21bee2156ffb, 5.15—

linuxlinux_kernel1da177e4c3f4 to < aaf0a07d6088, 1da177e4c3f4 to < 8387c94d73ec, 1da177e4c3f4 to < 09d9d8b40a33, 1da177e4c3f4 to < 712e01f32e57, 1da177e4c3f4 to < eebff19acaa3—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/aaf0a07d60887d6c36fc46a24de0083744f07819
git.kernel.orghttps://git.kernel.org/stable/c/8387c94d73ec66eb597c7a23a8d9eadf64bfbafa
git.kernel.orghttps://git.kernel.org/stable/c/09d9d8b40a3338193619c14ed4dc040f4f119e70
git.kernel.orghttps://git.kernel.org/stable/c/712e01f32e577e7e48ab0adb5fe550646a3d93cb
git.kernel.orghttps://git.kernel.org/stable/c/eebff19acaa35820cb09ce2ccb3d21bee2156ffb

01 Record index

CVE-2023-52755

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2023-52755

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References