Vulnerability Monitor

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CVE-2021-25475

A possible heap-based buffer overflow vulnerability in DSP kernel driver prior to SMR Oct-2021 Release 1 allows arbitrary memory write and code execution.

Security Impact Summary

This vulnerability carries a LOW severity rating with a CVSS v3.1 score of 3.9, requiring local system access to exploit but requires specific conditions to be met without requiring user interaction . The vulnerability impacts limited data confidentiality, limited integrity, and limited availability for affected systems. Impacting 4 products from google, from samsung, from samsung and 1 other, organizations running these solutions should prioritize assessment and patching.

Historical Context

Reported in 2021, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.

Published

2021-10-06T18:15:08.963

Last Modified

2024-11-21T05:55:04.033

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 3.9 (LOW)

CVSSv2 Vector

AV:L/AC:L/Au:N/C:C/I:C/A:C

Access Vector: LOCAL
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: COMPLETE
Integrity Impact: COMPLETE
Availability Impact: COMPLETE

Exploitability Score

3.9

Impact Score

10.0

Weaknesses

Type: Secondary
CWE-122
Type: Primary
CWE-787

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	google	android	10.0	Yes
Operating System	google	android	11.0	Yes
Hardware	samsung	exynos_2100	-	No
Hardware	samsung	exynos_980	-	No
Hardware	samsung	exynos_9830	-	No

References

https://security.samsungmobile.com/securityUpdate.smsb?year=2021&month=10 Vendor Advisory ([email protected])
https://security.samsungmobile.com/securityUpdate.smsb?year=2021&month=10 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For google's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.