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CVE-2025-21042

87
FAUCET Score

CVE-2025-21042 is a critical out-of-bounds write vulnerability in the libimagecodec.quram.so library affecting Samsung Android devices, patched in the SMR Apr-2025 Release 1. With a CVSS score of 9.8, this vulnerability allows unauthenticated remote attackers to execute arbitrary code with high impact on confidentiality, integrity, and availability. It is actively exploited in the wild, notably by the LANDFALL spyware, and has garnered significant community attention and media coverage, despite no public exploit code being readily available on platforms like Metasploit or ExploitDB.

Impacted Technologies

VendorProductVersion(s)CPE
13.0CPE matchmatch criteria
cpe:2.3:o:samsung:android:13.0:-:*:*:*:*:*:*
13.0CPE matchmatch criteria
cpe:2.3:o:samsung:android:13.0:smr-apr-2022-r1:*:*:*:*:*:*
13.0CPE matchmatch criteria
cpe:2.3:o:samsung:android:13.0:smr-apr-2023-r1:*:*:*:*:*:*
13.0CPE matchmatch criteria
cpe:2.3:o:samsung:android:13.0:smr-apr-2024-r1:*:*:*:*:*:*
13.0CPE matchmatch criteria
cpe:2.3:o:samsung:android:13.0:smr-aug-2022-r1:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
33.07%
Probability of exploitation in next 30 days
EPSS Percentile
98.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Added to KEV · Nov 10, 2025
This CVE's current EPSS score of 0.3307 is in the 95th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 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

unit42.paloaltonetworks.com / landfall-is-new-commercial-grade-android-spyware
Technical DescriptionThird Party Advisory
cisa.gov / known-exploited-vulnerabilities-catalog
US Government Resource
security.samsungmobile.com / securityUpdate.smsb
Vendor Advisory