CVE-2023-4515

Advisory lineage Upstream: 0 Downstream: 13
Analyzed
Published: 16 Aug 2025, 13:25
Last modified:23 May 2026, 15:25

Vulnerability Summary

Overall Risk (default)
low
22/100
CVSS Score
5.5 MEDIUM
v3.1 (nvd)
EPSS Score
0.02% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

16 Aug 2025, 13:25
Published
Vulnerability first disclosed
23 May 2026, 15:25
Last Modified
Vulnerability information updated

Description

In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate command request size In commit 2b9b8f3b68ed ("ksmbd: validate command payload size"), except for SMB2_OPLOCK_BREAK_HE command, the request size of other commands is not checked, it's not expected. Fix it by add check for request size of other commands.

CVSS Metrics

  • v3.1•MEDIUM•Score: 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS Trends

Current EPSS score: 0.02%• Percentile: 7%

Affected Systems

  • linux•linux

    ≥ 35f450f54dca1519bb24faacd0428db09f89a11f, < 595679098bdcdbfbba91ebe07a2f7f208df93870 | ≥ 9650cf70ec9d94ff34daa088b643229231723c26, < c6bef3bc30fd4a175aef846b7d928a6c40d091cd | ≥ 2b9b8f3b68edb3d67d79962f02e26dbb5ae3808d, < ff7236b66d69582f90cf5616e63cfc3dc18142bb | ≥ 2b9b8f3b68edb3d67d79962f02e26dbb5ae3808d, < 5aa4fda5aa9c2a5a7bac67b4a12b089ab81fee3c | 768caf4019f0391c0b6452afe34cea1704133f7b | ≥ 5.15.121, < 5.15.127 | ≥ 6.1.36, < 6.1.46 | ≥ 6.3.10, < 6.4 | 6.4

  • linux•linux_kernel

    ≥ 5.15.121, < 5.15.127 | ≥ 6.1.36, < 6.1.46 | ≥ 6.3.10, < 6.4 | ≥ 6.4.1, < 6.4.11 | 6.4 | 6.5:rc1 | 6.5:rc2 | 6.5:rc3 | 6.5:rc4 | 6.5:rc5

References (4)