CVE-2025-21844

Advisory lineage Upstream: 0 Downstream: 41
Modified
Published: 12 Mar 2025, 09:42
Last modified:23 May 2026, 15:57

Vulnerability Summary

Overall Risk (default)
low
22/100
CVSS Score
5.5 MEDIUM
v3.1 (cve.org)
EPSS Score
0.21% LOW
0% probability +0.15%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

12 Mar 2025, 09:42
Published
Vulnerability first disclosed
23 May 2026, 15:57
Last Modified
Vulnerability information updated

Description

In the Linux kernel, the following vulnerability has been resolved: smb: client: Add check for next_buffer in receive_encrypted_standard() Add check for the return value of cifs_buf_get() and cifs_small_buf_get() in receive_encrypted_standard() to prevent null pointer dereference.

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: 0.21%• Percentile: 11%

Techniques & Countermeasures

  • CWE-476•NULL Pointer Dereference

    The product dereferences a pointer that it expects to be valid but is NULL.

Affected Systems

  • linux•linux

    ≥ b03c8099a738a04d2343547ae6a04e5f0f63d3fa, < f277e479eea3d1aa18bc712abe1d2bf3dece2e30 | ≥ 858e73ff25639a0cc1f6f8d2587b62c045867e41, < f618aeb6cad2307e48a641379db610abcf593edf | ≥ 9f528a8e68327117837b5e28b096f52af4c26a05, < 24e8e4523d3071bc5143b0db9127d511489f7b3b | ≥ 534733397da26de0303057ce0b93a22bda150365, < 9e5d99a4cf2e23c716b44862975548415fae5391 | ≥ eec04ea119691e65227a97ce53c0da6b9b74b0b7, < a9b0b4b29877cb4dc5d0842b59b5ccbacddb85bd | ≥ eec04ea119691e65227a97ce53c0da6b9b74b0b7, < 554736b583f529ee159aa95af9a0cbc12b5ffc96 | ≥ eec04ea119691e65227a97ce53c0da6b9b74b0b7, < 860ca5e50f73c2a1cef7eefc9d39d04e275417f7 | ≥ 5.10.211, < 5.10.235 | ≥ 5.15.150, < 5.15.179 | ≥ 6.1.69, < 6.1.130 | ≥ 6.6.8, < 6.6.80 | 6.7

  • linux•linux_kernel

    ≥ 6.1.69, < 6.1.130 | ≥ 6.6.8, < 6.6.80 | ≥ 6.7, < 6.12.17 | ≥ 6.13, < 6.13.5 | 5.10.211 | 5.15.150 | 6.14:rc1 | 6.14:rc2 | 6.14:rc3

References (10)