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CVE-2020-25767

7.5 · HIGH
Published Aug 18, 2021 hcc-embedded CWE-125 EPSS 1.45% (71th pctl)

Overview

CVE-2020-25767 is a high-severity vulnerability affecting hcc-embedded nichestack_ipv4. It was published on August 18, 2021 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical Description

An issue was discovered in HCC Embedded NicheStack IPv4 4.1. The dnc_copy_in routine for parsing DNS domain names does not check whether a domain name compression pointer is pointing within the bounds of the packet (e.g., forward compression pointer jumps are allowed), which leads to an Out-of-bounds Read, and a Denial-of-Service as a consequence.

Remediation

Check the references section for vendor advisories and patches from hcc-embedded. Update nichestack_ipv4 to the latest patched version. 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.

Affected Products

Vendor Product Versions Status

Frequently Asked Questions

What is CVE-2020-25767?

CVE-2020-25767 is a high-severity vulnerability affecting hcc-embedded nichestack_ipv4. It was published on August 18, 2021 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2020-25767?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2020-25767?

Check the references section for vendor advisories and patches from hcc-embedded. Update nichestack_ipv4 to the latest patched version. 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-2020-25767?

CyberStrike's AI-powered security agents can automatically detect CVE-2020-25767 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.