CVE-2025-15412 (GCVE-0-2025-15412)
Vulnerability from cvelistv5 – Published: 2026-01-01 20:32 – Updated: 2026-01-01 20:32
VLAI?
Title
WebAssembly wabt wasm-decompile VarName out-of-bounds
Summary
A security vulnerability has been detected in WebAssembly wabt up to 1.0.39. This issue affects the function wabt::Decompiler::VarName of the file /src/repro/wabt/bin/wasm-decompile of the component wasm-decompile. Such manipulation leads to out-of-bounds read. Local access is required to approach this attack. The exploit has been disclosed publicly and may be used. Unfortunately, the project has no active maintainer at the moment. In a reply to the issue report somebody recommended to the researcher to provide a PR himself.
Severity ?
Assigner
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| WebAssembly | wabt |
Affected:
1.0.0
Affected: 1.0.1 Affected: 1.0.2 Affected: 1.0.3 Affected: 1.0.4 Affected: 1.0.5 Affected: 1.0.6 Affected: 1.0.7 Affected: 1.0.8 Affected: 1.0.9 Affected: 1.0.10 Affected: 1.0.11 Affected: 1.0.12 Affected: 1.0.13 Affected: 1.0.14 Affected: 1.0.15 Affected: 1.0.16 Affected: 1.0.17 Affected: 1.0.18 Affected: 1.0.19 Affected: 1.0.20 Affected: 1.0.21 Affected: 1.0.22 Affected: 1.0.23 Affected: 1.0.24 Affected: 1.0.25 Affected: 1.0.26 Affected: 1.0.27 Affected: 1.0.28 Affected: 1.0.29 Affected: 1.0.30 Affected: 1.0.31 Affected: 1.0.32 Affected: 1.0.33 Affected: 1.0.34 Affected: 1.0.35 Affected: 1.0.36 Affected: 1.0.37 Affected: 1.0.38 Affected: 1.0.39 |
Credits
Oneafter (VulDB User)
{
"containers": {
"cna": {
"affected": [
{
"modules": [
"wasm-decompile"
],
"product": "wabt",
"vendor": "WebAssembly",
"versions": [
{
"status": "affected",
"version": "1.0.0"
},
{
"status": "affected",
"version": "1.0.1"
},
{
"status": "affected",
"version": "1.0.2"
},
{
"status": "affected",
"version": "1.0.3"
},
{
"status": "affected",
"version": "1.0.4"
},
{
"status": "affected",
"version": "1.0.5"
},
{
"status": "affected",
"version": "1.0.6"
},
{
"status": "affected",
"version": "1.0.7"
},
{
"status": "affected",
"version": "1.0.8"
},
{
"status": "affected",
"version": "1.0.9"
},
{
"status": "affected",
"version": "1.0.10"
},
{
"status": "affected",
"version": "1.0.11"
},
{
"status": "affected",
"version": "1.0.12"
},
{
"status": "affected",
"version": "1.0.13"
},
{
"status": "affected",
"version": "1.0.14"
},
{
"status": "affected",
"version": "1.0.15"
},
{
"status": "affected",
"version": "1.0.16"
},
{
"status": "affected",
"version": "1.0.17"
},
{
"status": "affected",
"version": "1.0.18"
},
{
"status": "affected",
"version": "1.0.19"
},
{
"status": "affected",
"version": "1.0.20"
},
{
"status": "affected",
"version": "1.0.21"
},
{
"status": "affected",
"version": "1.0.22"
},
{
"status": "affected",
"version": "1.0.23"
},
{
"status": "affected",
"version": "1.0.24"
},
{
"status": "affected",
"version": "1.0.25"
},
{
"status": "affected",
"version": "1.0.26"
},
{
"status": "affected",
"version": "1.0.27"
},
{
"status": "affected",
"version": "1.0.28"
},
{
"status": "affected",
"version": "1.0.29"
},
{
"status": "affected",
"version": "1.0.30"
},
{
"status": "affected",
"version": "1.0.31"
},
{
"status": "affected",
"version": "1.0.32"
},
{
"status": "affected",
"version": "1.0.33"
},
{
"status": "affected",
"version": "1.0.34"
},
{
"status": "affected",
"version": "1.0.35"
},
{
"status": "affected",
"version": "1.0.36"
},
{
"status": "affected",
"version": "1.0.37"
},
{
"status": "affected",
"version": "1.0.38"
},
{
"status": "affected",
"version": "1.0.39"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "Oneafter (VulDB User)"
}
],
"descriptions": [
{
"lang": "en",
"value": "A security vulnerability has been detected in WebAssembly wabt up to 1.0.39. This issue affects the function wabt::Decompiler::VarName of the file /src/repro/wabt/bin/wasm-decompile of the component wasm-decompile. Such manipulation leads to out-of-bounds read. Local access is required to approach this attack. The exploit has been disclosed publicly and may be used. Unfortunately, the project has no active maintainer at the moment. In a reply to the issue report somebody recommended to the researcher to provide a PR himself."
}
],
"metrics": [
{
"cvssV4_0": {
"baseScore": 4.8,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P",
"version": "4.0"
}
},
{
"cvssV3_1": {
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R",
"version": "3.1"
}
},
{
"cvssV3_0": {
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R",
"version": "3.0"
}
},
{
"cvssV2_0": {
"baseScore": 4.3,
"vectorString": "AV:L/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR",
"version": "2.0"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-125",
"description": "Out-of-Bounds Read",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-119",
"description": "Memory Corruption",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-01-01T20:32:06.684Z",
"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"shortName": "VulDB"
},
"references": [
{
"name": "VDB-339333 | WebAssembly wabt wasm-decompile VarName out-of-bounds",
"tags": [
"vdb-entry",
"technical-description"
],
"url": "https://vuldb.com/?id.339333"
},
{
"name": "VDB-339333 | CTI Indicators (IOB, IOC, IOA)",
"tags": [
"signature",
"permissions-required"
],
"url": "https://vuldb.com/?ctiid.339333"
},
{
"name": "Submit #719826 | WebAssembly wabt 1.0.39 and master-branch Memory Corruption",
"tags": [
"third-party-advisory"
],
"url": "https://vuldb.com/?submit.719826"
},
{
"tags": [
"issue-tracking"
],
"url": "https://github.com/WebAssembly/wabt/issues/2678"
},
{
"tags": [
"exploit"
],
"url": "https://github.com/oneafter/1208/blob/main/af1"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-01-01T00:00:00.000Z",
"value": "Advisory disclosed"
},
{
"lang": "en",
"time": "2026-01-01T01:00:00.000Z",
"value": "VulDB entry created"
},
{
"lang": "en",
"time": "2026-01-01T10:24:08.000Z",
"value": "VulDB entry last update"
}
],
"title": "WebAssembly wabt wasm-decompile VarName out-of-bounds"
}
},
"cveMetadata": {
"assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"assignerShortName": "VulDB",
"cveId": "CVE-2025-15412",
"datePublished": "2026-01-01T20:32:06.684Z",
"dateReserved": "2026-01-01T09:19:01.354Z",
"dateUpdated": "2026-01-01T20:32:06.684Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"nvd": "{\"cve\":{\"id\":\"CVE-2025-15412\",\"sourceIdentifier\":\"cna@vuldb.com\",\"published\":\"2026-01-01T21:15:41.067\",\"lastModified\":\"2026-01-02T16:45:26.640\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A security vulnerability has been detected in WebAssembly wabt up to 1.0.39. This issue affects the function wabt::Decompiler::VarName of the file /src/repro/wabt/bin/wasm-decompile of the component wasm-decompile. Such manipulation leads to out-of-bounds read. Local access is required to approach this attack. The exploit has been disclosed publicly and may be used. Unfortunately, the project has no active maintainer at the moment. In a reply to the issue report somebody recommended to the researcher to provide a PR himself.\"}],\"metrics\":{\"cvssMetricV40\":[{\"source\":\"cna@vuldb.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"4.0\",\"vectorString\":\"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/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\",\"baseScore\":4.8,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"attackRequirements\":\"NONE\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"vulnConfidentialityImpact\":\"LOW\",\"vulnIntegrityImpact\":\"LOW\",\"vulnAvailabilityImpact\":\"LOW\",\"subConfidentialityImpact\":\"NONE\",\"subIntegrityImpact\":\"NONE\",\"subAvailabilityImpact\":\"NONE\",\"exploitMaturity\":\"PROOF_OF_CONCEPT\",\"confidentialityRequirement\":\"NOT_DEFINED\",\"integrityRequirement\":\"NOT_DEFINED\",\"availabilityRequirement\":\"NOT_DEFINED\",\"modifiedAttackVector\":\"NOT_DEFINED\",\"modifiedAttackComplexity\":\"NOT_DEFINED\",\"modifiedAttackRequirements\":\"NOT_DEFINED\",\"modifiedPrivilegesRequired\":\"NOT_DEFINED\",\"modifiedUserInteraction\":\"NOT_DEFINED\",\"modifiedVulnConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedVulnIntegrityImpact\":\"NOT_DEFINED\",\"modifiedVulnAvailabilityImpact\":\"NOT_DEFINED\",\"modifiedSubConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedSubIntegrityImpact\":\"NOT_DEFINED\",\"modifiedSubAvailabilityImpact\":\"NOT_DEFINED\",\"Safety\":\"NOT_DEFINED\",\"Automatable\":\"NOT_DEFINED\",\"Recovery\":\"NOT_DEFINED\",\"valueDensity\":\"NOT_DEFINED\",\"vulnerabilityResponseEffort\":\"NOT_DEFINED\",\"providerUrgency\":\"NOT_DEFINED\"}}],\"cvssMetricV31\":[{\"source\":\"cna@vuldb.com\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L\",\"baseScore\":5.3,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"LOW\"},\"exploitabilityScore\":1.8,\"impactScore\":3.4}],\"cvssMetricV2\":[{\"source\":\"cna@vuldb.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:L/AC:L/Au:S/C:P/I:P/A:P\",\"baseScore\":4.3,\"accessVector\":\"LOCAL\",\"accessComplexity\":\"LOW\",\"authentication\":\"SINGLE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"PARTIAL\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":3.1,\"impactScore\":6.4,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"cna@vuldb.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-119\"},{\"lang\":\"en\",\"value\":\"CWE-125\"}]}],\"references\":[{\"url\":\"https://github.com/WebAssembly/wabt/issues/2678\",\"source\":\"cna@vuldb.com\"},{\"url\":\"https://github.com/oneafter/1208/blob/main/af1\",\"source\":\"cna@vuldb.com\"},{\"url\":\"https://vuldb.com/?ctiid.339333\",\"source\":\"cna@vuldb.com\"},{\"url\":\"https://vuldb.com/?id.339333\",\"source\":\"cna@vuldb.com\"},{\"url\":\"https://vuldb.com/?submit.719826\",\"source\":\"cna@vuldb.com\"}]}}"
}
}
Loading…
Loading…
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Loading…
Loading…