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2 vulnerabilities by YosysHQ
CVE-2026-3407 (GCVE-0-2026-3407)
Vulnerability from nvd – Published: 2026-03-02 03:02 – Updated: 2026-03-02 14:43
VLAI
Title
YosysHQ yosys BLIF File rtlil.h set heap-based overflow
Summary
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.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.348302 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.348302 | signaturepermissions-required |
| https://vuldb.com/?submit.763755 | third-party-advisory |
| https://github.com/YosysHQ/yosys/issues/5677 | issue-tracking |
| https://github.com/YosysHQ/yosys/pull/5680 | issue-trackingpatch |
| https://github.com/oneafter/0210/blob/main/yo2/repro | exploit |
| https://github.com/YosysHQ/yosys/pull/5681 | issue-trackingpatch |
| https://github.com/YosysHQ/yosys/ | product |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| YosysHQ | yosys |
Affected:
0.1
Affected: 0.2 Affected: 0.3 Affected: 0.4 Affected: 0.5 Affected: 0.6 Affected: 0.7 Affected: 0.8 Affected: 0.9 Affected: 0.10 Affected: 0.11 Affected: 0.12 Affected: 0.13 Affected: 0.14 Affected: 0.15 Affected: 0.16 Affected: 0.17 Affected: 0.18 Affected: 0.19 Affected: 0.20 Affected: 0.21 Affected: 0.22 Affected: 0.23 Affected: 0.24 Affected: 0.25 Affected: 0.26 Affected: 0.27 Affected: 0.28 Affected: 0.29 Affected: 0.30 Affected: 0.31 Affected: 0.32 Affected: 0.33 Affected: 0.34 Affected: 0.35 Affected: 0.36 Affected: 0.37 Affected: 0.38 Affected: 0.39 Affected: 0.40 Affected: 0.41 Affected: 0.42 Affected: 0.43 Affected: 0.44 Affected: 0.45 Affected: 0.46 Affected: 0.47 Affected: 0.48 Affected: 0.49 Affected: 0.50 Affected: 0.51 Affected: 0.52 Affected: 0.53 Affected: 0.54 Affected: 0.55 Affected: 0.56 Affected: 0.57 Affected: 0.58 Affected: 0.59 Affected: 0.60 Affected: 0.61 Affected: 0.62 |
Credits
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CVE-2026-3407 (GCVE-0-2026-3407)
Vulnerability from cvelistv5 – Published: 2026-03-02 03:02 – Updated: 2026-03-02 14:43
VLAI
Title
YosysHQ yosys BLIF File rtlil.h set heap-based overflow
Summary
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.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.348302 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.348302 | signaturepermissions-required |
| https://vuldb.com/?submit.763755 | third-party-advisory |
| https://github.com/YosysHQ/yosys/issues/5677 | issue-tracking |
| https://github.com/YosysHQ/yosys/pull/5680 | issue-trackingpatch |
| https://github.com/oneafter/0210/blob/main/yo2/repro | exploit |
| https://github.com/YosysHQ/yosys/pull/5681 | issue-trackingpatch |
| https://github.com/YosysHQ/yosys/ | product |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| YosysHQ | yosys |
Affected:
0.1
Affected: 0.2 Affected: 0.3 Affected: 0.4 Affected: 0.5 Affected: 0.6 Affected: 0.7 Affected: 0.8 Affected: 0.9 Affected: 0.10 Affected: 0.11 Affected: 0.12 Affected: 0.13 Affected: 0.14 Affected: 0.15 Affected: 0.16 Affected: 0.17 Affected: 0.18 Affected: 0.19 Affected: 0.20 Affected: 0.21 Affected: 0.22 Affected: 0.23 Affected: 0.24 Affected: 0.25 Affected: 0.26 Affected: 0.27 Affected: 0.28 Affected: 0.29 Affected: 0.30 Affected: 0.31 Affected: 0.32 Affected: 0.33 Affected: 0.34 Affected: 0.35 Affected: 0.36 Affected: 0.37 Affected: 0.38 Affected: 0.39 Affected: 0.40 Affected: 0.41 Affected: 0.42 Affected: 0.43 Affected: 0.44 Affected: 0.45 Affected: 0.46 Affected: 0.47 Affected: 0.48 Affected: 0.49 Affected: 0.50 Affected: 0.51 Affected: 0.52 Affected: 0.53 Affected: 0.54 Affected: 0.55 Affected: 0.56 Affected: 0.57 Affected: 0.58 Affected: 0.59 Affected: 0.60 Affected: 0.61 Affected: 0.62 |
Credits
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"name": "Submit #763755 | YosysHQ yosys 8bbde80 Heap-based Buffer Overflow",
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"third-party-advisory"
],
"url": "https://vuldb.com/?submit.763755"
},
{
"tags": [
"issue-tracking"
],
"url": "https://github.com/YosysHQ/yosys/issues/5677"
},
{
"tags": [
"issue-tracking",
"patch"
],
"url": "https://github.com/YosysHQ/yosys/pull/5680"
},
{
"tags": [
"exploit"
],
"url": "https://github.com/oneafter/0210/blob/main/yo2/repro"
},
{
"tags": [
"issue-tracking",
"patch"
],
"url": "https://github.com/YosysHQ/yosys/pull/5681"
},
{
"tags": [
"product"
],
"url": "https://github.com/YosysHQ/yosys/"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-03-01T00:00:00.000Z",
"value": "Advisory disclosed"
},
{
"lang": "en",
"time": "2026-03-01T01:00:00.000Z",
"value": "VulDB entry created"
},
{
"lang": "en",
"time": "2026-03-01T08:08:34.000Z",
"value": "VulDB entry last update"
}
],
"title": "YosysHQ yosys BLIF File rtlil.h set heap-based overflow"
}
},
"cveMetadata": {
"assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"assignerShortName": "VulDB",
"cveId": "CVE-2026-3407",
"datePublished": "2026-03-02T03:02:09.924Z",
"dateReserved": "2026-03-01T07:03:11.753Z",
"dateUpdated": "2026-03-02T14:43:12.380Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}