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CVE-2020-17441

9.1 · CRITICAL

An issue was discovered in picoTCP 1.7.0.

Published Dec 11, 2020CWE-125EPSS 7.00%

Overview

CVE-2020-17441 is a critical-severity vulnerability. It was published on December 11, 2020 and has a CVSS 3.1 base score of 9.1 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 9.1, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

An issue was discovered in picoTCP 1.7.0. The code for processing the IPv6 headers does not validate whether the IPv6 payload length field is equal to the actual size of the payload, which leads to an Out-of-Bounds read during the ICMPv6 checksum calculation, resulting in either Denial-of-Service or Information Disclosure. This affects pico_ipv6_extension_headers and pico_checksum_adder (in pico_ipv6.c and pico_frame.c).

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

CISAus-cert.cisa.gov/ics/advisories/icsa-20-343-01Refwww.kb.cert.org/vuls/id/815128CISAus-cert.cisa.gov/ics/advisories/icsa-20-343-01Refwww.kb.cert.org/vuls/id/815128

How CyberStrike helps

Frequently asked questions

What is CVE-2020-17441?

CVE-2020-17441 is a critical-severity vulnerability. It was published on December 11, 2020 and has a CVSS 3.1 base score of 9.1 (CRITICAL).

How severe is CVE-2020-17441?

This vulnerability has a CVSS 3.1 base score of 9.1, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2020-17441?

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-2020-17441?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2020-17441 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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