CVE-2021-25339 — MEDIUM (4.4)

Vulnerability 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.

CVSS Score

4.4

MEDIUM

CVSS:3.1/AV:P/AC:H/PR:H/UI:R/S:U/C:N/I:H/A:L

Attack Vector

PHYSICAL

Attack Complexity

HIGH

Privileges Required

HIGH

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

NONE

Integrity

HIGH

Availability

LOW

Affected Products

Vendor	Product	Versions
Google	Android	10.0
Samsung	Exynos 9830	-

Related Weaknesses (CWE)

CWE-20

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

FAQ

What is CVE-2021-25339?

CVE-2021-25339 is a vulnerability with a CVSS score of 4.4 (MEDIUM). 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 been rated MEDIUM with a CVSS base score of 4.4/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-25339?

Check the references section above for vendor advisories and patch information. Affected products include: Google Android, Samsung Exynos 9830.