CVE-2021-25500

Severity Score

4.4

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A missing input validation in HDCP LDFW prior to SMR Nov-2021 Release 1 allows attackers to overwrite TZASC allowing TEE compromise.

Una falta de comprobación de entradas en HDCP LDFW versiones anteriores a 1 de SMR Nov-2021, permite a atacantes sobrescribir TZASC, lo que permite comprometer el TEE

*Credits: N/A

CVSS Scores

Attack Vector

Local

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Attack Vector

Local

Attack Complexity

High

Privileges Required

High

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

None

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-01-19 CVE Reserved
2021-11-05 CVE Published
2023-05-28 EPSS Updated
2024-08-03 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-20: Improper Input Validation
CWE-787: Out-of-bounds Write

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://security.samsungmobile.com/securityUpdate.smsb?year=2021&month=11	2022-08-01

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Google Search vendor "Google"	Android Search vendor "Google" for product "Android"	10.0 Search vendor "Google" for product "Android" and version "10.0"	-	Affected	in	Samsung Search vendor "Samsung"	Exynos 2100 Search vendor "Samsung" for product "Exynos 2100"	-	-	Safe
Google Search vendor "Google"	Android Search vendor "Google" for product "Android"	10.0 Search vendor "Google" for product "Android" and version "10.0"	-	Affected	in	Samsung Search vendor "Samsung"	Exynos 980 Search vendor "Samsung" for product "Exynos 980"	-	-	Safe
Google Search vendor "Google"	Android Search vendor "Google" for product "Android"	10.0 Search vendor "Google" for product "Android" and version "10.0"	-	Affected	in	Samsung Search vendor "Samsung"	Exynos 9820 Search vendor "Samsung" for product "Exynos 9820"	-	-	Safe
Google Search vendor "Google"	Android Search vendor "Google" for product "Android"	10.0 Search vendor "Google" for product "Android" and version "10.0"	-	Affected	in	Samsung Search vendor "Samsung"	Exynos 9830 Search vendor "Samsung" for product "Exynos 9830"	-	-	Safe
Google Search vendor "Google"	Android Search vendor "Google" for product "Android"	11.0 Search vendor "Google" for product "Android" and version "11.0"	-	Affected	in	Samsung Search vendor "Samsung"	Exynos 2100 Search vendor "Samsung" for product "Exynos 2100"	-	-	Safe
Google Search vendor "Google"	Android Search vendor "Google" for product "Android"	11.0 Search vendor "Google" for product "Android" and version "11.0"	-	Affected	in	Samsung Search vendor "Samsung"	Exynos 980 Search vendor "Samsung" for product "Exynos 980"	-	-	Safe
Google Search vendor "Google"	Android Search vendor "Google" for product "Android"	11.0 Search vendor "Google" for product "Android" and version "11.0"	-	Affected	in	Samsung Search vendor "Samsung"	Exynos 9820 Search vendor "Samsung" for product "Exynos 9820"	-	-	Safe
Google Search vendor "Google"	Android Search vendor "Google" for product "Android"	11.0 Search vendor "Google" for product "Android" and version "11.0"	-	Affected	in	Samsung Search vendor "Samsung"	Exynos 9830 Search vendor "Samsung" for product "Exynos 9830"	-	-	Safe