CVE-2025-63927
Full vulnerability record from the local CVENow database.
Description
A heap-use-after-free vulnerability exists in airpig2011 IEC104 thru Commit be6d841 (2019-07-08). During multi-threaded client execution, the function Iec10x_Scheduled can access memory that has already been freed, potentially causing program crashes or undefined behavior. This may be exploited to trigger a denial-of-service or memory corruption.
Severity
MEDIUM
CVSS score
4.0
(v3.1)
Vulnerability status
Analyzed
Source identifier
Published
2025-11-12 19:15:37.677000
Last modified
2026-11-05 14:10:00.273000
View original CVE JSON
{
"id": "CVE-2025-63927",
"sourceIdentifier": "[email protected]",
"published": "2025-11-12T19:15:37.677",
"lastModified": "2026-11-05T14:10:00.273",
"vulnStatus": "Analyzed",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "A heap-use-after-free vulnerability exists in airpig2011 IEC104 thru Commit be6d841 (2019-07-08). During multi-threaded client execution, the function Iec10x_Scheduled can access memory that has already been freed, potentially causing program crashes or undefined behavior. This may be exploited to trigger a denial-of-service or memory corruption."
},
{
"lang": "es",
"value": "Una vulnerabilidad de uso después de liberación de heap existe en airpig2011 IEC104 hasta el Commit be6d841 (2019-07-08). Durante la ejecución multi-hilo del cliente, la función Iec10x_Scheduled puede acceder a memoria que ya ha sido liberada, lo que podría causar caídas del programa o comportamiento indefinido. Esto puede ser explotado para desencadenar una denegación de servicio o corrupción de memoria."
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
{
"vendor": "n/a",
"product": "n/a",
"versions": [
{
"version": "n/a",
"status": "affected"
}
]
}
]
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"baseScore": 4.0,
"baseSeverity": "MEDIUM",
"attackVector": "LOCAL",
"attackComplexity": "LOW",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"availabilityImpact": "LOW"
},
"exploitabilityScore": 2.5,
"impactScore": 1.4
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2025-11-13T15:59:49.756286Z",
"id": "CVE-2025-63927",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
]
},
"weaknesses": [
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"type": "Secondary",
"description": [
{
"lang": "en",
"value": "CWE-122"
}
]
}
],
"configurations": [
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"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
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"criteria": "cpe:2.3:a:airpig2011:iec104:*:*:*:*:*:*:*:*",
"versionEndIncluding": "2019-07-08",
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],
"references": [
{
"url": "https://github.com/airpig2011/IEC104/issues/20",
"source": "[email protected]",
"tags": [
"Exploit"
]
},
{
"url": "https://songsong.host/mybugs/CVE-2025-63927.html",
"source": "[email protected]",
"tags": [
"Exploit",
"Third Party Advisory"
]
}
]
}