{ "dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": { "cveId": "CVE-2025-54581", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2025-07-25T16:19:16.093Z", "datePublished": "2025-07-30T19:57:46.454Z", "dateUpdated": "2025-07-30T20:23:36.826Z" }, "containers": { "cna": { "title": "vproxy is vulnerable to a divide by zero DoS attack", "problemTypes": [ { "descriptions": [ { "cweId": "CWE-369", "lang": "en", "description": "CWE-369: Divide By Zero", "type": "CWE" } ] } ], "metrics": [ { "cvssV3_1": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1" } } ], "references": [ { "name": "https://github.com/0x676e67/vproxy/security/advisories/GHSA-7h24-c332-p48c", "tags": [ "x_refsource_CONFIRM" ], "url": "https://github.com/0x676e67/vproxy/security/advisories/GHSA-7h24-c332-p48c" }, { "name": "https://github.com/0x676e67/vproxy/commit/aa1bf64c5e7f1c471395f9f29175ffc1b16a1079", "tags": [ "x_refsource_MISC" ], "url": "https://github.com/0x676e67/vproxy/commit/aa1bf64c5e7f1c471395f9f29175ffc1b16a1079" }, { "name": "https://github.com/0x676e67/vproxy/releases/tag/v2.4.0", "tags": [ "x_refsource_MISC" ], "url": "https://github.com/0x676e67/vproxy/releases/tag/v2.4.0" } ], "affected": [ { "vendor": "0x676e67", "product": "vproxy", "versions": [ { "version": "< 2.4.0", "status": "affected" } ] } ], "providerMetadata": { "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2025-07-30T19:57:46.454Z" }, "descriptions": [ { "lang": "en", "value": "vproxy is an HTTP/HTTPS/SOCKS5 proxy server. In versions 2.3.3 and below, untrusted data is extracted from the user-controlled HTTP Proxy-Authorization header and passed to Extension::try_from and flows into parse_ttl_extension where it is parsed as a TTL value. If an attacker supplies a TTL of zero (e.g. by using a username such as 'configuredUser-ttl-0'), the modulo operation 'timestamp % ttl' will cause a division by zero panic, causing the server to crash causing a denial-of-service. This is fixed in version 2.4.0." } ], "source": { "advisory": "GHSA-7h24-c332-p48c", "discovery": "UNKNOWN" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2025-07-30T20:13:38.841221Z", "id": "CVE-2025-54581", "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": "2025-07-30T20:23:36.826Z" } } ] } }