FKIE_CVE-2025-59391
Vulnerability from fkie_nvd - Published: 2025-12-08 17:16 - Updated: 2026-10-19 13:10
Severity
Summary
A memory disclosure vulnerability exists in libcoap's OSCORE configuration parser in libcoap before release-4.3.5-patches. An out-of-bounds read may occur when parsing certain configuration values, allowing an attacker to infer or read memory beyond string boundaries in the .rodata section. This could potentially lead to information disclosure or denial of service.
References
| URL | Tags | ||
|---|---|---|---|
| cve@mitre.org | https://github.com/obgm/libcoap/pull/1730 | Issue Tracking, Patch | |
| cve@mitre.org | https://github.com/obgm/libcoap/releases/tag/v4.3.5a | Release Notes |
{
"affected": [
{
"affectedData": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"source": "cve@mitre.org"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:libcoap:libcoap:*:*:*:*:*:*:*:*",
"matchCriteriaId": "8519F781-B2B5-48CA-BE86-B187221928B6",
"versionEndExcluding": "4.3.5a",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "A memory disclosure vulnerability exists in libcoap\u0027s OSCORE configuration parser in libcoap before release-4.3.5-patches. An out-of-bounds read may occur when parsing certain configuration values, allowing an attacker to infer or read memory beyond string boundaries in the .rodata section. This could potentially lead to information disclosure or denial of service."
},
{
"lang": "es",
"value": "Existe una vulnerabilidad de revelaci\u00f3n de memoria en el analizador de configuraci\u00f3n OSCORE de libcoap antes de la versi\u00f3n release-4.3.5-patches. Puede producirse una lectura fuera de l\u00edmites al analizar ciertos valores de configuraci\u00f3n, permitiendo a un atacante inferir o leer memoria m\u00e1s all\u00e1 de los l\u00edmites de las cadenas en la secci\u00f3n .rodata. Esto podr\u00eda conducir potencialmente a la revelaci\u00f3n de informaci\u00f3n o a la denegaci\u00f3n de servicio."
}
],
"id": "CVE-2025-59391",
"lastModified": "2026-10-19T13:10:00.110",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "LOW",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 2.5,
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2025-59391",
"options": [
{
"exploitation": "none"
},
{
"automatable": "yes"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-12-08T17:51:22.520390Z",
"version": "2.0.3"
}
}
]
},
"published": "2025-12-08T17:16:20.080",
"references": [
{
"source": "cve@mitre.org",
"tags": [
"Issue Tracking",
"Patch"
],
"url": "https://github.com/obgm/libcoap/pull/1730"
},
{
"source": "cve@mitre.org",
"tags": [
"Release Notes"
],
"url": "https://github.com/obgm/libcoap/releases/tag/v4.3.5a"
}
],
"sourceIdentifier": "cve@mitre.org",
"vulnStatus": "Analyzed",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-125"
}
],
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary"
}
]
}
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Sightings
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Nomenclature
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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