Vulnerabilities / CVE-2025-21042

CVE-2025-21042

Published 2025-09-12 · Analyzed

CVE-2025-21042

Samsung Mobile Devices Out-of-Bounds Write Vulnerability

Exploited in the wild: CISA added it to the Known Exploited Vulnerabilities catalog on 2025-11-10, with a fix-by date of 2025-12-01. Patch it first.

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

8.8 HIGH
CVSS 3.1 · CNA · samsung.com

Out-of-bounds write in libimagecodec.quram.so prior to SMR Apr-2025 Release 1 allows remote attackers to execute arbitrary code.

Scores

8.8CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HCNA · samsung.com

9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HNVD

Affected products

samsung android: 88 specific releases listed in NVD

Weakness: CWE-787

3 references (advisories, patches, write-ups)

https://security.samsungmobile.com/securityUpdate.smsb?year=2025&month=04 · Vendor Advisory
https://unit42.paloaltonetworks.com/landfall-is-new-commercial-grade-android-spyware/ · Technical Description, Third Party Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-21042 · US Government Resource

Sources: NVD, CVE.org. Missing ones did not answer or have no record yet.

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