CVE-2021-25477 — MEDIUM (4.4)

Vulnerability Description

An improper error handling in Mediatek RRC Protocol stack prior to SMR Oct-2021 Release 1 allows modem crash and remote denial of service.

CVSS Score

4.4

MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Google	Android	9.0
Mediatek	Mt6762	-
Mediatek	Mt6765	-
Mediatek	Mt6853	-

Related Weaknesses (CWE)

CWE-415

References

https://security.samsungmobile.com/securityUpdate.smsb?year=2021&month=10Vendor Advisory
https://security.samsungmobile.com/securityUpdate.smsb?year=2021&month=10Vendor Advisory

FAQ

What is CVE-2021-25477?

CVE-2021-25477 is a vulnerability with a CVSS score of 4.4 (MEDIUM). An improper error handling in Mediatek RRC Protocol stack prior to SMR Oct-2021 Release 1 allows modem crash and remote denial of service.

How severe is CVE-2021-25477?

CVE-2021-25477 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-2021-25477?

Check the references section above for vendor advisories and patch information. Affected products include: Google Android, Mediatek Mt6762, Mediatek Mt6765, Mediatek Mt6853.