CVE-2025-21043

HIGHCVSS 8.8Known Exploited

CISA Known Exploited Vulnerability

https://security.samsungmobile.com/securityUpdate.smsb?year=2025&month=09 ; https://nvd.nist.gov/vuln/detail/CVE-2025-21043

Remediation deadline: October 23, 2025

Description

Samsung mobile devices contain an out-of-bounds write vulnerability in libimagecodec.quram.so which allows remote attackers to execute arbitrary code.

Timeline

Published:September 12th, 2025 8:15 AM

Last modified:October 7th, 2026 9:17 PM

Added to KEV:October 2nd, 2025

CVSS Scoring

CVSS v3: 8.8 (HIGH)

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

Affected Software

From NVD CPE configuration data

Vendors

samsung

Products

android

Weaknesses (CWE)

CWE-787

References & Reports

Advisories, patches, and third-party reports

https://security.samsungmobile.com/securityUpdate.smsb?year=2025&month=09Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-21043US Government Resource

Source: NIST NVD · Data may lag official sources by up to one minute