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High 8.8Known exploited (CISA KEV)Published Sep 12, 2025
CVE-2025-21043Out-of-bounds write in libimagecodec.quram.so prior to SMR Sep-2025 Release 1 allows remote attackers to execute arbitrary code.
Updated under an hour ago ()
Does this affect you?
It affects Samsung Mobile Devices and 1 other product. Add what you run to find out whether that includes you.
CISA lists it as known exploited since Oct 2, 2025; federal agencies had to remediate by Oct 23, 2025. Treat that date as your deadline.
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Out-of-bounds write in libimagecodec.quram.so prior to SMR Sep-2025 Release 1 allows remote attackers to execute arbitrary code.
- CVSS
- 8.8 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-787
- Known exploited
- Added to CISA KEV Oct 2, 2025; federal remediation due Oct 23, 2025Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
- EPSS (exploitation in the next 30 days)
- 2.14% (percentile 82)
- Assigned by
- SamsungMobile
- NVD analysis
- Analyzed
- Record last updated
- Oct 7, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Samsung Mobile Samsung Mobile Devices samsung_mobile:devices (from the name) | SMR Sep-2025 Release in Android 13, 14, 15, 16 not affected | CNA record |
samsung android samsung:android | 13.0; 13.0; 13.0; 13.0; 13.0; 13.0; 13.0; 13.0; and 97 more ranges | NVD |
References
- 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
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.