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.
References (8)
Core 8
Core References
Permissions Required, VDB Entry vdb-entry
technical-description
https://vuldb.com/?id.348302
Permissions Required, VDB Entry signature
permissions-required
https://vuldb.com/?ctiid.348302
Permissions Required, VDB Entry third-party-advisory
https://vuldb.com/?submit.763755
Issue Tracking issue-tracking
https://github.com/YosysHQ/yosys/issues/5677
Issue Tracking issue-tracking
patch
https://github.com/YosysHQ/yosys/pull/5680
Third Party Advisory exploit
https://github.com/oneafter/0210/blob/main/yo2/repro
Issue Tracking issue-tracking
patch
https://github.com/YosysHQ/yosys/pull/5681
Various Sources product
https://github.com/YosysHQ/yosys/
Scores
CVSS v3
3.3
EPSS
0.0013
EPSS Percentile
2.6%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-119
CWE-122
Status
published
Products (50)
YosysHQ/yosys
0.1
YosysHQ/yosys
0.10
YosysHQ/yosys
0.11
YosysHQ/yosys
0.12
YosysHQ/yosys
0.13
YosysHQ/yosys
0.14
YosysHQ/yosys
0.15
YosysHQ/yosys
0.16
YosysHQ/yosys
0.17
YosysHQ/yosys
0.18
... and 40 more
Published
Mar 02, 2026
Tracked Since
Mar 02, 2026