Cyber Resilience

CVE-2025-21055

Memory Safety in Samsung Android 13.0 … 16.0

Published
10 October 2025
Modified
23 October 2025
Patch / advisory
CVSS Score v3.1 4.3
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
EPSS Score 0.0027 20th percentile
Risk Priority 35 floored blend · peak EPSS

Summary

CVE-2025-21055 is a medium-severity Out-of-bounds Read (CWE-125) vulnerability in Samsung Android. Its CVSS base score is 4.3 (Medium).

Operationally, ranked at the 20th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to SI-16 (Memory Protection) and SI-10 (Information Input Validation) — see the control section below for these in your framework.

EU & UK References

Vulnerability Data

Out-of-bounds read and write in libimagecodec.quram.so prior to SMR Oct-2025 Release 1 allows remote attackers to access out-of-bounds memory.

CWE(s)

Related Threats

CVEs Like This One

CVE-2025-21054Same product: Samsung Android
CVE-2026-20973Same product: Samsung Android
CVE-2024-20836Same product: Samsung Android
CVE-2025-20887Same product: Samsung Android
CVE-2021-25487Same product: Samsung Android
CVE-2024-20882Same product: Samsung Android
CVE-2024-20820Same product: Samsung Android
CVE-2025-58479Same product: Samsung Android
CVE-2025-20944Same product: Samsung Android
CVE-2023-21477Same product: Samsung Android

Affected Assets

samsung
android
13.0, 14.0, 15.0, 16.0

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)
  • SI-16 Memory Protection
  • SI-10 Information Input Validation
  • SI-7 Software, Firmware, and Information Integrity
Detect
Catch it (NIST detect / respond)
  • SI-7 Software, Firmware, and Information Integrity
Harden
Shrink the surface (DISA STIG)

Validate
Prove the fix (OWASP ASVS)

Mitigating Controls (NIST 800-53 r5) AI

prevent

Directly implements memory protection mechanisms that block out-of-bounds read/write operations in libraries such as libimagecodec.quram.so.

prevent

Requires validation of untrusted image inputs before processing, preventing malformed data from reaching the vulnerable codec routines.

preventdetect

Ensures integrity verification of system libraries and images, blocking or detecting use of the unpatched vulnerable version.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure-development practices such as bounds checking and memory-safe languages directly prevent out-of-bounds reads.

ID.RA-01 partial match
prevents

Vulnerability scanning and recording can discover instances of out-of-bounds reads after code is deployed.

PR.PS-02 partial match
prevents

Routine patching replaces vulnerable code containing out-of-bounds read flaws.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

detects

Security testing in development and acceptance includes fuzzing and static analysis that detect out-of-bounds read defects before release.

A.8.15 Logging partial match
detects

Logging can record evidence of an out-of-bounds read but does not prevent the weakness itself.

prevents

Secure development life cycle mandates input validation and bounds checking that directly prevent out-of-bounds reads.

prevents

Application security requirements include explicit bounds and memory-safety specifications that mitigate buffer over-reads.

prevents

Secure system architecture and engineering principles require memory-safe design patterns and runtime protections against out-of-bounds access.

prevents

Secure coding standards explicitly forbid unsafe pointer arithmetic and mandate bounds-checked reads, eliminating CWE-125.

References