CVE-2021-33630

Advisory lineage Upstream: 0 Downstream: 5
Modified
Published: 18 Jan 2024, 15:00
Last modified:07 May 2025, 20:14

Vulnerability Summary

Overall Risk (default)
low
22/100
CVSS Score
5.5 MEDIUM
v3.1 (cve.org)
EPSS Score
0.08% LOW
0% probability +0.01%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

18 Jan 2024, 15:00
Published
Vulnerability first disclosed
07 May 2025, 20:14
Last Modified
Vulnerability information updated

Description

NULL Pointer Dereference vulnerability in openEuler kernel on Linux (network modules) allows Pointer Manipulation. This vulnerability is associated with program files net/sched/sch_cbs.C. This issue affects openEuler kernel: from 4.19.90 before 4.19.90-2401.3.

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: 0.08%• Percentile: 23%

Techniques & Countermeasures

  • CWE-476•NULL Pointer Dereference

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

Affected Systems

  • openatom•openeuler

    ≥ 4.19.90, < 4.19.90-2401.3

  • openeuler•kernel

    ≥ 4.19.90, < 4.19.90-2401.3

References (15)