CVE-2021-25339
MEDIUMCVSS 5.2/10EPSS 0.11%
Last modified
CVE-2021-25339 is a medium-severity vulnerability rated 5.2/10 on the CVSS scale. Improper address validation in HArx in Samsung mobile devices prior to SMR Mar-2021 Release 1 allows an attacker, given a compromised kernel, to corrupt EL2 memory.. EPSS estimates a 0.11% chance of exploitation in the next 30 days.
Description
Improper address validation in HArx in Samsung mobile devices prior to SMR Mar-2021 Release 1 allows an attacker, given a compromised kernel, to corrupt EL2 memory.
Metrics
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Android | 10.0 | |
| Android | 11.0 |
References
- https://security.samsungmobile.comVendor Advisory
- https://security.samsungmobile.com/securityUpdate.smsbVendor Advisory
- https://security.samsungmobile.comVendor Advisory
- https://security.samsungmobile.com/securityUpdate.smsbVendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-25339?
Improper address validation in HArx in Samsung mobile devices prior to SMR Mar-2021 Release 1 allows an attacker, given a compromised kernel, to corrupt EL2 memory.
How severe is CVE-2021-25339?
CVE-2021-25339 has a CVSS score of 5.2/10 (MEDIUM severity). The EPSS model estimates a 0.11% probability of exploitation in the next 30 days.
How do I fix CVE-2021-25339?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2021-25339?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST