CVE-2021-33639
High
Published: 08 March 2023
Published
08 March 2023
Modified
04 March 2025
KEV Added
—
Patch
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CVSS Score v3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
EPSS Score
0.0023
46.1th percentile
Risk Priority
15
60% EPSS · 20% KEV · 20% CVSS
Summary
CVE-2021-33639 is a high-severity Exposed Dangerous Method or Function (CWE-749) vulnerability in Openatom Openeuler Kernel. Its CVSS base score is 7.5 (High).
Operationally, ranked at the 46.1th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2021-20316
Vulnerability details
REMAP cmd of SVM driver can be used to remap read only memory as read-write, then cause read only memory/file modified.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
openatom
openeuler kernel
≤ 4.19.90-2211.4.0.0177 · 5.0 — 5.10.0-60.67.0.92
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.