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CVE-2021-25489

3.3 · LOWActively Exploited

Assuming radio permission is gained, missing input validation in modem interface driver prior to SMR Oct-2021 Release 1 results in format string bug leading to kernel panic.

Published Oct 6, 2021CWE-20EPSS 0.53%

Overview

CVE-2021-25489 is a low-severity vulnerability. It was published on October 6, 2021 and has a CVSS 3.1 base score of 3.3 (LOW). This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog, indicating active exploitation in the wild.

This vulnerability has a CVSS 3.1 base score of 3.3, rated LOW. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

Assuming radio permission is gained, missing input validation in modem interface driver prior to SMR Oct-2021 Release 1 results in format string bug leading to kernel panic.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refsecurity.samsungmobile.com/securityUpdate.smsb?year=2021&month=10Refsecurity.samsungmobile.com/securityUpdate.smsb?year=2021&month=10CISAwww.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-25489

How CyberStrike helps

Frequently asked questions

What is CVE-2021-25489?

CVE-2021-25489 is a low-severity vulnerability. It was published on October 6, 2021 and has a CVSS 3.1 base score of 3.3 (LOW). This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog, indicating active exploitation in the wild.

How severe is CVE-2021-25489?

This vulnerability has a CVSS 3.1 base score of 3.3, rated LOW. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2021-25489?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2021-25489?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-25489 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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