Samsung Mobile Devices Use-After-Free Vulnerability
An improper check or handling of exceptional conditions in NPU driver prior to SMR Jan-2022 Release 1 allows arbitrary memory write and code execution.
Severity = CVSS. Probability = EPSS (FIRST). Exploitation = public signals: KEV, EUVD, ransomware, EPSS above 10 %, no account required.
Exploitation probability EPSS · FIRST
Exploitation signals 2 / 5
- KEV catalog (CISA)18 Sept 2023
- Exploited in EUVD (ENISA)18 Sept 2023
- Used by ransomwareno
- EPSS above 10 %0.42%
- No account, over the networkno
What to do
Fix
Apply the vendor’s fix as soon as it is available.
CISA guidance: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Meanwhile
Take the service off the internet or restrict access to it, watch the logs and look for signs of compromise.
Manufacturers (CRA)
Exploited vulnerability in your product: early warning to ENISA within 24 h, then notification within 72 h (Article 14 of the Cyber Resilience Act). The CRA explained
Affected products
- O(8.x), P(9.0), Q(10.0), R(11.0), S(12.0) <SMR Jan-2022 Release 1
Open source packages OSV
Affected libraries according to OSV, with fixed versions.
Timeline
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Published
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Exploitation reported (ENISA)
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Added to the KEV catalog
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CISA remediation due date
References
Other exploited vulnerabilities from the same vendor
- CVE-2024-7399Samsung MagicINFO 9 Server Path Traversal Vulnerability8.1 · Background exploitation
- CVE-2025-21042Samsung Mobile Devices Out-of-Bounds Write Vulnerability7.0 · Background exploitation
- CVE-2025-21043Samsung Mobile Devices Out-of-Bounds Write Vulnerability5.4 · Background exploitation
- CVE-2025-4632Samsung MagicINFO 9 Server Path Traversal Vulnerability7.0 · Background exploitation
- CVE-2021-25489Samsung Mobile Devices Improper Input Validation Vulnerability2.5 · Background exploitation
- CVE-2021-25487Samsung Mobile Devices Out-of-Bounds Read Vulnerability4.1 · Background exploitation