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.

CVSS v3 3.3 LOW
CVSS v2.0 1.7 LOW

3.3^/10

CVSS v3 : LOW

Vector :

Exploitability : 1.8 / Impact : 1.4

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

1.7^/10

CVSS v2.0 : LOW

Vector : AV:L/AC:L/Au:S/C:N/I:N/A:P

Exploitability : 3.1 / Impact : 2.9

Access Vector LOCAL

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
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

Configurations

No configuration.

History

02 Mar 2026, 20:30

Type	Values Removed	Values Added
Summary		(es) Se encontró una vulnerabilidad en YosysHQ yosys hasta la versión 0.62, la cual afeacta a la función Yosys::RTLIL::Const::set del archivo kernel/rtlil.h del componente BLIF File Parser. Su manipulación provoca un desbordamiento de búfer basado en montículo. Es posible lanzar el ataque en el host local. El exploit ha sido divulgado públicamente y puede ser utilizado. Se recomienda aplicar un parche para solucionar este problema. Parece que el problema no es reproducible todo el tiempo.

02 Mar 2026, 03:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-03-02 03:16

Updated : 2026-03-02 20:30

NVD link : CVE-2026-3407

Mitre link : CVE-2026-3407

CVE.ORG link : CVE-2026-3407

JSON object : View

Products Affected

No product.

CWE

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-122

Heap-based Buffer Overflow

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