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CVE-2021-29462

7.6 · HIGH

The Portable SDK for UPnP Devices is an SDK for development of UPnP device and control point applications.

Published Apr 20, 2021CWE-20EPSS 0.63%

Overview

CVE-2021-29462 is a high-severity vulnerability. It was published on April 20, 2021 and has a CVSS 3.1 base score of 7.6 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.6, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

The Portable SDK for UPnP Devices is an SDK for development of UPnP device and control point applications. The server part of pupnp (libupnp) appears to be vulnerable to DNS rebinding attacks because it does not check the value of the `Host` header. This can be mitigated by using DNS revolvers which block DNS-rebinding attacks. The vulnerability is fixed in version 1.14.6 and later.

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

Refwww.openwall.com/lists/oss-security/2021/04/20/4GitHubgithub.com/pupnp/pupnp/security/advisories/GHSA-6hqq-w3jq-9fhgRefwww.openwall.com/lists/oss-security/2021/04/20/4GitHubgithub.com/pupnp/pupnp/security/advisories/GHSA-6hqq-w3jq-9fhg

How CyberStrike helps

Frequently asked questions

What is CVE-2021-29462?

CVE-2021-29462 is a high-severity vulnerability. It was published on April 20, 2021 and has a CVSS 3.1 base score of 7.6 (HIGH).

How severe is CVE-2021-29462?

This vulnerability has a CVSS 3.1 base score of 7.6, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2021-29462?

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-2021-29462?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-29462 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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