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CVE-2026-3407

3.3 · LOW

A vulnerability was determined in YosysHQ yosys up to 0.62.

Published Mar 2, 2026CWE-119EPSS 0.18%

Overview

CVE-2026-3407 is a low-severity vulnerability. It was published on March 2, 2026 and has a CVSS 3.1 base score of 3.3 (LOW).

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

A vulnerability was determined in YosysHQ yosys up to 0.62. This affects the function Yosys::RTLIL::Const::set of the file kernel/rtlil.h of the component BLIF File Parser. This manipulation causes heap-based buffer overflow. It is possible to launch the attack on the local host. The exploit has been publicly disclosed and may be utilized. Applying a patch is the recommended action to fix this issue. It appears that the issue is not reproducible all the time.

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

GitHubgithub.com/YosysHQ/yosys/GitHubgithub.com/YosysHQ/yosys/issues/5677GitHubgithub.com/YosysHQ/yosys/pull/5680GitHubgithub.com/YosysHQ/yosys/pull/5681GitHubgithub.com/oneafter/0210/blob/main/yo2/reproRefvuldb.com/?ctiid.348302Refvuldb.com/?id.348302Refvuldb.com/?submit.763755

How CyberStrike helps

Frequently asked questions

What is CVE-2026-3407?

CVE-2026-3407 is a low-severity vulnerability. It was published on March 2, 2026 and has a CVSS 3.1 base score of 3.3 (LOW).

How severe is CVE-2026-3407?

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-2026-3407?

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-2026-3407?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-3407 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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