CVE-2025-21043
Confirmed PUBLISHEDOut-of-bounds write in libimagecodec.quram.so prior to SMR Sep-2025 Release 1 allows remote attackers to execute arbitrary code.
1 day faster than CISA KEV
Recommended Action
Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
At a Glance
Out-of-bounds write in libimagecodec.quram.so prior to SMR Sep-2025 Release 1 allows remote attackers to execute arbitrary code.
- CVE Published
- Sep 12, 2025
- Exploitation Reported
- Jun 01, 2026
- CVSS
- 8.8 High
- EPSS
- 1.4%
Affected Versions
| Vendor | Product | Version | Status |
|---|---|---|---|
| Samsung Mobile |
Samsung Mobile Devices
|
SMR Sep-2025 Release in Android 13, 14, 15, 16 |
Unaffected |
CVE References
- security.samsungmobile.com/securityUpdate.smsb security.samsungmobile.com · CVE Record https://security.samsungmobile.com/securityUpdate.smsb?year=2025&mont...
Recommended Actions
- Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
- Use the Pro API to automate enrichment, telemetry, and workflow delivery for VM, SOC, and CTI pipelines.
Known Exploited Vulnerability Sources
Catalogues that list this CVE as a known exploited vulnerability.
Per-source evidence links for KEV attestations are available through the KEVIntel Pro API.
Learn about Pro API access| Source | Added |
|---|---|
| CVE First | 2026-06-01 10:41 UTC |
| CISA | 2026-06-02 14:05 UTC |
No detection artifacts or sensor request patterns are available for this CVE yet.
Check back as sensor telemetry and scanner integrations are updated.
Virtual Patch
Compensating WAF rules to help reduce exposure to this CVE. Rule content and deployable vendor exports are available with KEVIntel Enterprise.
KEVIntel does not currently have a virtual patch for this CVE. When available, KEVIntel virtual patches ship as deployable ModSecurity, Cloudflare, and AWS WAF rules.
Enterprise feature. Virtual patch rule content and deployable vendor exports (ModSecurity, Cloudflare, AWS WAF) are available to KEVIntel Enterprise users.
CVSS Scores
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Exploitation Status
Exploited in the wild
Recorded 2026-06-01 10:41:37 UTC · CVE
Weaknesses (CWE)
-
Out-of-bounds Write
Timeline
Key exploitation, disclosure, scanner coverage, and KEV attestation events for this CVE.
-
14:05 UTC about 1 month ago14:05 UTC · about 1 month ago
Added to CISA KEV
Listed in the CISA Known Exploited Vulnerabilities catalog
-
10:41 UTC about 2 months ago10:41 UTC · about 2 months ago
Added to KEVIntel KEV Feed
High-confidence, third-party attested exploitation
-
07:21 UTC 10 months ago07:21 UTC · 10 months ago
CVE published
Vulnerability disclosed publicly
-
02:30 UTC over 1 year ago02:30 UTC · over 1 year ago
CVE ID reserved
Identifier reserved by the CNA
Automate This Intelligence with the Pro API
Confidence scoring, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.
Pro API Example
GET /api/v2/pro/kevs/CVE-2025-21043
{
"cve_id": "CVE-2025-21043",
"title": "Out-of-bounds write in libimagecodec.quram.so prior to SMR Sep-2025 Release 1...",
"affected_vendor": "Samsung Mobile",
"affected_product": "Samsung Mobile Devices",
"affected_versions": [
{ "vendor": "...", "product": "...", "status": "affected", "display_label": "..." }
],
"confidence": "Confirmed",
"cvss_score": 8.8,
"epss_score": 0.01435,
"exploit_status": {
"exploited_in_the_wild": true,
"active_exploitation_observed": false
},
"sensor_telemetry": { "...": "Pro API fields" },
"proof_of_concepts": [ "..." ],
"scanner_integrations": [ "..." ]
}