VulnerabilityAnalyzed
CVE-2025-21042
Samsung Mobile Devices Out-of-Bounds Write Vulnerability
KEVCRITICAL 9.8EPSS 33.2%
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 1 December 2025). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
Description
Out-of-bounds write in libimagecodec.quram.so prior to SMR Apr-2025 Release 1 allows remote attackers to execute arbitrary code.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 33.17% probability · 98th percentile
- CISA KEV
- Listed 10 November 2025 · due 1 December 2025
- Weakness
- CWE-787
- Affected
- samsung/android
- Source
- mobile.security@samsung.com
CISA notes
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. https://security.samsungmobile.com/securityUpdate.smsb?year=2025&month=04 ; https://nvd.nist.gov/vuln/detail/CVE-2025-21042
References
- https://security.samsungmobile.com/securityUpdate.smsb?year=2025&month=04Vendor 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-2025-21042US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.