Vulnerability Details : CVE-2021-25490
A keyblob downgrade attack in keymaster prior to SMR Oct-2021 Release 1 allows attacker to trigger IV reuse vulnerability with privileged process.
Vulnerability category: BypassGain privilege
Products affected by CVE-2021-25490
- cpe:2.3:o:google:android:9.0:*:*:*:*:*:*:*
- cpe:2.3:o:google:android:10.0:*:*:*:*:*:*:*
- cpe:2.3:o:google:android:11.0:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-25490
0.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 10 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-25490
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
3.6
|
LOW | AV:L/AC:L/Au:N/C:P/I:P/A:N |
3.9
|
4.9
|
NIST | |
6.0
|
MEDIUM | CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:L |
0.5
|
5.5
|
Samsung Mobile | |
6.0
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N |
0.8
|
5.2
|
NIST |
CWE ids for CVE-2021-25490
-
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.Assigned by: mobile.security@samsung.com (Secondary)
References for CVE-2021-25490
-
https://security.samsungmobile.com/securityUpdate.smsb?year=2021&month=10
Security Updates Firmware Updates | Samsung Mobile SecurityVendor Advisory
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