Timing side-channel vulnerability in AES-CBC decryption with PKCS#7 padding in ocrypto library_CVE-2025-7071

{
    "lastseen": "",
    "description": "Padding oracle attack vulnerability in Oberon microsystem AG\u2019s ocrypto library in all versions since 3.1.0 and prior to 3.9.2 allows an attacker to recover plaintexts via timing measurements of AES-CBC PKCS#7 decrypt operations.",
    "published": "2025-08-29T09:18:06.911Z",
    "modified": "2025-08-29T09:18:06.911Z",
    "type": "cve",
    "title": "Timing side-channel vulnerability in AES-CBC decryption with PKCS#7 padding in ocrypto library",
    "source": "NCSC.ch",
    "references": "https://www.oberon.ch/security-advisories/cve-2025-7071/",
    "id": "CVE-2025-7071",
    "bulletinFamily": "",
    "cwe": [
        "CWE-208",
        "CWE-327"
    ],
    "cvelist": null,
    "sourceData": "Oberon microsystems AG ocrypto 3.1.0",
    "sourceHref": "",
    "cvss": {
        "score": 5.9,
        "severity": "MEDIUM",
        "vector": "CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
        "version": "4.0"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
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            "privilegesRequired": "",
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            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "ocrypto",
    "version": "3.1.0",
    "vendor": "Oberon microsystems AG",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}