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CVE-2021-25337

60
FAUCET Score

CVE-2021-25337 is an improper access control vulnerability in the clipboard service of Samsung mobile devices prior to the SMR Mar-2021 Release 1, allowing untrusted applications to read or write specific local files. This vulnerability has a CVSS score of 7.1 (HIGH), indicating a local attack vector with low complexity, requiring user interaction, and potentially leading to high confidentiality and integrity impacts. It is actively exploited in the wild, as confirmed by its presence in the KEV catalog, and has garnered significant community attention and media coverage, despite no public exploit code being available on platforms like Metasploit or ExploitDB.

Impacted Technologies

VendorProductVersion(s)CPE
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:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:samsung:android:9.0:smr-aug-2020-r1:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:samsung:android:9.0:smr-dec-2018-r1:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

4.4MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
1.8
Impact Score
2.5
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.83%
Probability of exploitation in next 30 days
EPSS Percentile
85.1%
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 0.0283 is in the 86th percentile among its peer group of 11,617 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 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