CVE-2026-3407
LOW EPSS 2.7%
Published Mar 2, 20264mo ago · Modified Apr 29, 20262mo ago
1.9 CVSS 4.0
Published Mar 2, 2026 4mo ago
Last Modified Apr 29, 2026 2mo ago
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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope X
Threat Intelligence
EPSS Exploit Probability
2.7% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 2
CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer Memory Safety
CWE-122
References 8
- github.com https://github.com/YosysHQ/yosys/
- github.com https://github.com/YosysHQ/yosys/issues/5677
- github.com https://github.com/YosysHQ/yosys/pull/5680
- github.com https://github.com/YosysHQ/yosys/pull/5681
- github.com https://github.com/oneafter/0210/blob/main/yo2/repro
- vuldb.com https://vuldb.com/?ctiid.348302
- vuldb.com https://vuldb.com/?id.348302
- vuldb.com https://vuldb.com/?submit.763755
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.