CVE Record
[ HIGH ]CVE-2025-21042
Samsung Mobile Devices Out-of-Bounds Write Vulnerability
Samsung mobile devices contain an out-of-bounds write vulnerability in libimagecodec.quram.so. This vulnerability could allow remote attackers to execute arbitrary code.
- Vendor
- Samsung
- Product
- Mobile Devices
- CVSS
- 8.8
- EPSS (exploit probability)
- 34.5%
- Status
- kev
- CISA patch-by (BOD 22-01)
- Added to KEV
Is CVE-2025-21042 being exploited?
Yes. CISA added CVE-2025-21042 to its Known Exploited Vulnerabilities catalog on . CISA only lists a CVE when it has reliable evidence of exploitation in the wild.
FIRST's EPSS model puts the probability of exploitation activity in the next 30 days at 34.5% (scored October 21, 2026).
- CISA KEV[ LISTED ]
- ENISA EUVD (exploited)[ — ]
- CIRCL KEV[ — ]
Catalog snapshot 2026-10-21. Full cross-catalog view: /kev-comparison
What to do
CISA required actionApply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
US federal civilian agencies must remediate by (21 days after listing) under BOD 22-01. Everyone else: that deadline is a sensible upper bound, not a target. Vendor guidance and the NVD record are linked under Source above.
Other Samsung Mobile Devices CVEs we track
| CVE / Vulnerability | Severity | CVSS | EPSS | Added to KEV |
|---|---|---|---|---|
| CVE-2025-21043 Samsung Mobile Devices Out-of-Bounds Write Vulnerability | [ HIGH ] | 8.8 | 2.2% | |
| CVE-2022-22265 Samsung Mobile Devices Use-After-Free Vulnerability | [ MEDIUM ] | 5.0 | 0.4% | |
| CVE-2021-25489 Samsung Mobile Devices Improper Input Validation Vulnerability | [ LOW ] | 3.3 | 0.5% | |
| CVE-2021-25487 Samsung Mobile Devices Out-of-Bounds Read Vulnerability | [ HIGH ] | 7.3 | 0.6% | |
| CVE-2021-25395 Samsung Mobile Devices Race Condition Vulnerability | [ MEDIUM ] | 6.4 | 0.4% | |
| CVE-2021-25394 Samsung Mobile Devices Race Condition Vulnerability | [ MEDIUM ] | 6.4 | 0.4% | |
| CVE-2021-25372 Samsung Mobile Devices Improper Boundary Check Vulnerability | [ MEDIUM ] | 6.1 | 0.8% | |
| CVE-2021-25371 Samsung Mobile Devices Unspecified Vulnerability | [ MEDIUM ] | 6.1 | 0.8% |