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CVE-2021-25369

56
FAUCET Score

CVE-2021-25369 is an improper access control vulnerability in Samsung Android devices, specifically affecting the 'sec_log' file prior to the SMR MAR-2021 Release 1. This flaw allows sensitive kernel information to be exposed to userspace. With a CVSS score of 5.5 (Medium), it can be exploited locally with low attack complexity, leading to high confidentiality impact without affecting integrity or availability. This vulnerability is actively exploited (KEV listed) and has garnered significant community discussion, though no public exploit code is currently available on platforms like Metasploit or ExploitDB.

Impacted Technologies

VendorProductVersion(s)CPE
8.0CPE matchmatch criteria
cpe:2.3:o:samsung:android:8.0:-:*:*:*:*:*:*
8.1CPE matchmatch criteria
cpe:2.3:o:samsung:android:8.1:-:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:samsung:android:9.0:smr-apr-2019-r1:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:samsung:android:9.0:smr-apr-2020-r1:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:samsung:android:9.0:smr-aug-2019-r1:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.2MEDIUM

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.5
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.12%
Probability of exploitation in next 30 days
EPSS Percentile
62.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Added to KEV · Nov 8, 2022
This CVE's current EPSS score of 0.0112 is in the 97th percentile among its peer group of 15,938 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

cisa.gov / known-exploited-vulnerabilities-catalog
US Government Resource
security.samsungmobile.com
Vendor Advisory
security.samsungmobile.com / securityUpdate.smsb
Vendor Advisory