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CVE-2021-25371

58
FAUCET Score

CVE-2021-25371 is a critical vulnerability affecting Samsung Android devices utilizing Exynos chipsets (Exynos 2100, 980, 9830). It allows a highly privileged attacker to load arbitrary ELF libraries within the DSP driver, potentially leading to complete compromise of confidentiality, integrity, and availability. With a CVSS score of 6.7 (Medium) and a FAUCET Risk Score of 98/100, this vulnerability is actively exploited in the wild, as confirmed by its inclusion in CISA's KEV catalog, though public exploit code is not readily available. Despite limited community discussion, its media coverage highlights its significance, with reports linking it to spyware vendors.

Impacted Technologies

VendorProductVersion(s)CPE
10.0CPE matchmatch criteria
cpe:2.3:o:samsung:android:10.0:smr-feb-2021-r1:*:*:*:*:*:*
10.0CPE matchmatch criteria
cpe:2.3:o:samsung:android:10.0:smr-jan-2021-r1:*:*:*:*:*:*
11.0CPE matchmatch criteria
cpe:2.3:o:samsung:android:11.0:smr-feb-2021-r1:*:*:*:*:*:*
11.0CPE matchmatch criteria
cpe:2.3:o:samsung:android:11.0:smr-jan-2021-r1:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.1MEDIUM

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

Attack Vector
PHYSICAL
Attack Complexity
HIGH
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
0.2
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.80%
Probability of exploitation in next 30 days
EPSS Percentile
52.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Added to KEV · Jun 29, 2023
This CVE's current EPSS score of 0.0080 is in the 96th percentile among its peer group of 3,720 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