CISA KEV · Known exploitedCritical

CVE-2025-21043

Samsung Mobile Devices

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

CVSS
9.8
EPSS
1.90%
77.7% percentile
CISA KEV
Listed
Published
2025.09.12
PRIORITY ASSESSMENT

Immediate review

CISA has listed this vulnerability in the Known Exploited Vulnerabilities catalog.

Known exploitationConfirmed by CISA KEV
Exploit probability1.90%
Technical severityCVSS 9.8

Vulnerability overview

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

Affected product and versions

Product
Samsung Mobile Devices
Affected versions
13.0, 14.0, 15.0, 16.0
Fixed versions
No verified fixed-version field is available yet

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
CISA required action

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

Due date: 2025.10.23
  1. 1
    Identify

    Confirm that Samsung Mobile Devices and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
CWE-787
KEV added
2025.10.02
Ransomware use
미확인
CVE-2025-21043 — Samsung Mobile Devices | SECUFOCUS NOW