CVE-2021-25490: google android Improper Authentication
Modified
Published 06-10-2021Last modified 03-08-2024
Vulnerability summary
CVE-2021-25490 is a medium (CVSS 6.0) Improper Authentication vulnerability in google android. EPSS estimates a 0.75% chance of exploitation in the next 30 days, higher than 54.4% of scored vulnerabilities.
CVSS score
6.0/10
010
Medium · v3.1 (CVE.org)EPSS score
0.75%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded
Timeline
- 06-10-2021PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
Description
A keyblob downgrade attack in keymaster prior to SMR Oct-2021 Release 1 allows attacker to trigger IV reuse vulnerability with privileged process.
CVSS metrics
3 scores · 2 sources · 2 versionsMedium 6.0Preferred score · CVE.org (CNA)
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:LSourcesAll 2 agree
- NVDNIST6.0MediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
Low 3.6Preferred score · NVD (NIST)
AV:L/AC:L/Au:N/C:P/I:P/A:NSourcesSingle source
EPSS trend
Probability
0.75%
Chance of exploitation in the next 30 days
Percentile
54%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.75% on 22-09-2026
22-09-202622-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Google1 product
- androidEOL9.0 | 10.0 | 11.0
Samsung mobile1 product
- samsung mobile devices≥ P(9.0), Q(10.0), R(11.0), < SMR Oct-2021 Release 1
2 vendors · 2 products