High severity · published Mar 8, 2023
CVE-2021-33639
REMAP cmd of SVM driver can be used to remap read only memory as read-write, then cause read only memory/file modified
7.5
CVSS
0.5%
EPSS
No
On KEV
Description
REMAP cmd of SVM driver can be used to remap read only memory as read-write, then cause read only memory/file modified.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 42% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OK
Openeuler Kernel · Openatom
through 4.19.90-2211.4.0.0177; 5.0 through 5.10.0-60.67.0.92 · source: NVD