CVE-2026-3407

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.

• CWE-119
• CWE-122

• https://github.com/YosysHQ/yosys/
• https://github.com/YosysHQ/yosys/issues/5677
• https://github.com/YosysHQ/yosys/pull/5680
• https://github.com/YosysHQ/yosys/pull/5681
• https://github.com/oneafter/0210/blob/main/yo2/repro
• https://vuldb.com/?ctiid.348302
• https://vuldb.com/?id.348302
• https://vuldb.com/?submit.763755

Published

Mar 2, 2026

Last Modified

Jun 17, 2026

Status

Deferred

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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