286 lines
12 KiB
JSON
286 lines
12 KiB
JSON
{
|
|
"dataType": "CVE_RECORD",
|
|
"dataVersion": "5.2",
|
|
"cveMetadata": {
|
|
"cveId": "CVE-2026-93990",
|
|
"assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
|
|
"state": "PUBLISHED",
|
|
"assignerShortName": "VulnCheck",
|
|
"dateReserved": "2026-09-19T10:55:49.093Z",
|
|
"datePublished": "2026-09-19T22:58:11.224Z",
|
|
"dateUpdated": "2026-11-10T12:49:54.993Z"
|
|
},
|
|
"containers": {
|
|
"cna": {
|
|
"providerMetadata": {
|
|
"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
|
|
"shortName": "VulnCheck",
|
|
"dateUpdated": "2026-11-08T14:09:22.450Z"
|
|
},
|
|
"datePublic": "2026-09-18T00:00:00.000Z",
|
|
"title": "Expat before 2.8.5 Malformed UTF-16 Acceptance via Unchecked Surrogate",
|
|
"descriptions": [
|
|
{
|
|
"lang": "en",
|
|
"value": "Expat before 2.8.5 fails to validate that a high surrogate in UTF-16 input is followed by a low surrogate, allowing malformed UTF-16 sequences to be accepted. Attackers can supply UTF-16 encoded XML containing lone high surrogates that consume the following code unit, causing Expat to pass unpaired surrogates to applications built with XML_UNICODE and to silently replace input characters in other builds."
|
|
}
|
|
],
|
|
"problemTypes": [
|
|
{
|
|
"descriptions": [
|
|
{
|
|
"lang": "en",
|
|
"description": "Improper Handling of Unicode Encoding",
|
|
"cweId": "CWE-176",
|
|
"type": "CWE"
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"affected": [
|
|
{
|
|
"vendor": "libexpat",
|
|
"product": "libexpat",
|
|
"defaultStatus": "unaffected",
|
|
"packageURL": "pkg:github/libexpat/libexpat",
|
|
"repo": "https://github.com/libexpat/libexpat",
|
|
"versions": [
|
|
{
|
|
"version": "0",
|
|
"status": "affected",
|
|
"versionType": "semver",
|
|
"lessThan": "2.8.5"
|
|
},
|
|
{
|
|
"version": "2.8.5",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"cpeApplicability": [
|
|
{
|
|
"nodes": [
|
|
{
|
|
"operator": "OR",
|
|
"negate": false,
|
|
"cpeMatch": [
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:a:libexpat_project:libexpat:*:*:*:*:*:*:*:*",
|
|
"versionEndExcluding": "2.8.5"
|
|
}
|
|
]
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"metrics": [
|
|
{
|
|
"format": "CVSS",
|
|
"cvssV4_0": {
|
|
"version": "4.0",
|
|
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N",
|
|
"attackVector": "NETWORK",
|
|
"attackComplexity": "LOW",
|
|
"attackRequirements": "NONE",
|
|
"privilegesRequired": "NONE",
|
|
"userInteraction": "NONE",
|
|
"vulnConfidentialityImpact": "NONE",
|
|
"vulnIntegrityImpact": "HIGH",
|
|
"vulnAvailabilityImpact": "NONE",
|
|
"subConfidentialityImpact": "NONE",
|
|
"subIntegrityImpact": "NONE",
|
|
"subAvailabilityImpact": "NONE",
|
|
"baseScore": 8.7,
|
|
"baseSeverity": "HIGH"
|
|
}
|
|
},
|
|
{
|
|
"format": "CVSS",
|
|
"cvssV3_1": {
|
|
"version": "3.1",
|
|
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
|
|
"attackVector": "NETWORK",
|
|
"attackComplexity": "LOW",
|
|
"privilegesRequired": "NONE",
|
|
"userInteraction": "NONE",
|
|
"scope": "UNCHANGED",
|
|
"confidentialityImpact": "NONE",
|
|
"integrityImpact": "HIGH",
|
|
"availabilityImpact": "NONE",
|
|
"baseScore": 7.5,
|
|
"baseSeverity": "HIGH"
|
|
}
|
|
}
|
|
],
|
|
"references": [
|
|
{
|
|
"url": "https://github.com/libexpat/libexpat/pull/1282",
|
|
"tags": [
|
|
"issue-tracking",
|
|
"patch"
|
|
],
|
|
"name": "GitHub PR #1282"
|
|
},
|
|
{
|
|
"url": "https://github.com/libexpat/libexpat/commit/ff6e1d7e750bbe245178f51a47a965dc8342861a",
|
|
"tags": [
|
|
"patch"
|
|
]
|
|
},
|
|
{
|
|
"url": "https://github.com/libexpat/libexpat/releases/tag/R_2_8_5",
|
|
"name": "libexpat R_2_8_5 Release Notes",
|
|
"tags": [
|
|
"release-notes"
|
|
]
|
|
},
|
|
{
|
|
"url": "https://blog.hartwork.org/posts/expat-2-8-5-released/",
|
|
"tags": [
|
|
"vendor-advisory"
|
|
]
|
|
},
|
|
{
|
|
"url": "https://github.com/libexpat/libexpat",
|
|
"tags": [
|
|
"product"
|
|
]
|
|
},
|
|
{
|
|
"name": "VulnCheck Advisory: Expat through 2.8.4 Malformed UTF-16 Acceptance via Unchecked Surrogate",
|
|
"tags": [
|
|
"third-party-advisory"
|
|
],
|
|
"url": "https://www.vulncheck.com/advisories/expat-through-2.8.4-malformed-utf-16-acceptance-via-unchecked-surrogate"
|
|
}
|
|
],
|
|
"credits": [
|
|
{
|
|
"lang": "en",
|
|
"value": "Kartik Kenchi (netliomax25-code)",
|
|
"type": "finder"
|
|
}
|
|
],
|
|
"x_generator": {
|
|
"engine": "vulncheck-endgame"
|
|
}
|
|
},
|
|
"adp": [
|
|
{
|
|
"metrics": [
|
|
{
|
|
"other": {
|
|
"type": "ssvc",
|
|
"content": {
|
|
"timestamp": "2026-09-21T15:10:43.564847Z",
|
|
"id": "CVE-2026-93990",
|
|
"options": [
|
|
{
|
|
"Exploitation": "none"
|
|
},
|
|
{
|
|
"Automatable": "yes"
|
|
},
|
|
{
|
|
"Technical Impact": "partial"
|
|
}
|
|
],
|
|
"role": "CISA Coordinator",
|
|
"version": "2.0.3"
|
|
}
|
|
}
|
|
}
|
|
],
|
|
"title": "CISA ADP Vulnrichment",
|
|
"providerMetadata": {
|
|
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
|
|
"shortName": "CISA-ADP",
|
|
"dateUpdated": "2026-09-21T15:13:37.622Z"
|
|
}
|
|
},
|
|
{
|
|
"x_adpType": "supplier",
|
|
"providerMetadata": {
|
|
"orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
|
|
"shortName": "siemens-SADP",
|
|
"dateUpdated": "2026-11-10T12:49:54.993Z"
|
|
},
|
|
"affected": [
|
|
{
|
|
"vendor": "Siemens",
|
|
"product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0)",
|
|
"versions": [
|
|
{
|
|
"status": "affected",
|
|
"version": "V3.1.7",
|
|
"lessThan": "*",
|
|
"versionType": "custom"
|
|
}
|
|
],
|
|
"defaultStatus": "unknown"
|
|
},
|
|
{
|
|
"vendor": "Siemens",
|
|
"product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0)",
|
|
"versions": [
|
|
{
|
|
"status": "affected",
|
|
"version": "V3.1.7",
|
|
"lessThan": "*",
|
|
"versionType": "custom"
|
|
}
|
|
],
|
|
"defaultStatus": "unknown"
|
|
},
|
|
{
|
|
"vendor": "Siemens",
|
|
"product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0)",
|
|
"versions": [
|
|
{
|
|
"status": "affected",
|
|
"version": "V3.1.7",
|
|
"lessThan": "*",
|
|
"versionType": "custom"
|
|
}
|
|
],
|
|
"defaultStatus": "unknown"
|
|
},
|
|
{
|
|
"vendor": "Siemens",
|
|
"product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0)",
|
|
"versions": [
|
|
{
|
|
"status": "affected",
|
|
"version": "V3.1.7",
|
|
"lessThan": "*",
|
|
"versionType": "custom"
|
|
}
|
|
],
|
|
"defaultStatus": "unknown"
|
|
},
|
|
{
|
|
"vendor": "Siemens",
|
|
"product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0)",
|
|
"versions": [
|
|
{
|
|
"status": "affected",
|
|
"version": "V3.1.7",
|
|
"lessThan": "*",
|
|
"versionType": "custom"
|
|
}
|
|
],
|
|
"defaultStatus": "unknown"
|
|
}
|
|
],
|
|
"references": [
|
|
{
|
|
"url": "https://cert-portal.siemens.com/productcert/html/ssa-457936.html"
|
|
}
|
|
]
|
|
}
|
|
]
|
|
}
|
|
} |