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        "cveId": "CVE-2025-7071",
        "assignerOrgId": "455daabc-a392-441d-aa46-37d35189897c",
        "state": "PUBLISHED",
        "assignerShortName": "NCSC.ch",
        "dateReserved": "2025-07-04T14:16:55.641Z",
        "datePublished": "2025-08-29T09:18:06.911Z",
        "dateUpdated": "2025-08-29T12:07:57.827Z"
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            "affected": [
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                    "defaultStatus": "unaffected",
                    "modules": [
                        "AES-CBC with PKCS#7 padding"
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                    "product": "ocrypto",
                    "vendor": "Oberon microsystems AG",
                    "versions": [
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                            "lessThanOrEqual": "3.9.1",
                            "status": "affected",
                            "version": "3.1.0",
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                            "value": "<span style=\"background-color: rgb(248, 248, 248);\">Padding oracle attack vulnerability in <i>Oberon microsystem AG</i>’s <i>ocrypto</i> 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.</span><br>"
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                    "value": "Padding oracle attack vulnerability in Oberon microsystem AG’s 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."
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            ],
            "impacts": [
                {
                    "capecId": "CAPEC-463",
                    "descriptions": [
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                            "lang": "en",
                            "value": "CAPEC-463 Padding Oracle Crypto Attack"
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                        "Recovery": "NOT_DEFINED",
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                        "attackRequirements": "PRESENT",
                        "attackVector": "LOCAL",
                        "baseScore": 5.9,
                        "baseSeverity": "MEDIUM",
                        "privilegesRequired": "NONE",
                        "providerUrgency": "NOT_DEFINED",
                        "subAvailabilityImpact": "NONE",
                        "subConfidentialityImpact": "NONE",
                        "subIntegrityImpact": "NONE",
                        "userInteraction": "NONE",
                        "valueDensity": "NOT_DEFINED",
                        "vectorString": "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",
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                        "vulnerabilityResponseEffort": "NOT_DEFINED"
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                            "value": "GENERAL"
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                    "descriptions": [
                        {
                            "cweId": "CWE-208",
                            "description": "CWE-208 Observable Timing Discrepancy",
                            "lang": "en",
                            "type": "CWE"
                        }
                    ]
                },
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-327",
                            "description": "CWE-327 Use of a Broken or Risky Cryptographic Algorithm",
                            "lang": "en",
                            "type": "CWE"
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            "providerMetadata": {
                "orgId": "455daabc-a392-441d-aa46-37d35189897c",
                "shortName": "NCSC.ch",
                "dateUpdated": "2025-08-29T09:18:06.911Z"
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            "references": [
                {
                    "url": "https://www.oberon.ch/security-advisories/cve-2025-7071/"
                }
            ],
            "solutions": [
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                    "lang": "en",
                    "supportingMedia": [
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                            "type": "text/html",
                            "value": "Affected users should upgrade to <i>ocrypto 3.9.2</i> or later."
                        }
                    ],
                    "value": "Affected users should upgrade to ocrypto 3.9.2 or later."
                }
            ],
            "source": {
                "discovery": "INTERNAL"
            },
            "title": "Timing side-channel vulnerability in AES-CBC decryption with PKCS#7 padding in ocrypto library",
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                                "timestamp": "2025-08-29T12:07:50.804088Z",
                                "id": "CVE-2025-7071",
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                                        "Exploitation": "none"
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                                "role": "CISA Coordinator",
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                "title": "CISA ADP Vulnrichment",
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