{"cve":{"cve_id":"CVE-2025-54581","is_kev":false,"kev_date_added":null,"kev_vendor_project":null,"kev_product":null,"kev_vulnerability_name":null,"kev_short_description":null,"kev_required_action":null,"kev_due_date":null,"kev_known_ransomware":null,"kev_notes":null,"kev_cwes":null,"epss_score":0.00519,"epss_percentile":0.39929,"epss_as_of":"2026-06-23","description":"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.","published_at":"2025-07-30T19:57:46.454000Z","last_modified_at":null,"cvss_v3_score":7.5,"cvss_v3_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cvss_v3_severity":"HIGH","cvss_v4_score":null,"cvss_v4_vector":null,"cvss_v4_severity":null,"ssvc_decision":null,"ssvc_exploitation":null,"ssvc_automatable":null,"ssvc_technical_impact":null,"cwes":["CWE-369"],"nvd_references":["https://github.com/0x676e67/vproxy/security/advisories/GHSA-7h24-c332-p48c","https://github.com/0x676e67/vproxy/commit/aa1bf64c5e7f1c471395f9f29175ffc1b16a1079","https://github.com/0x676e67/vproxy/releases/tag/v2.4.0"],"vuln_status":null,"trending_score":null,"is_trending":false,"has_trended":false,"trended_number_one":false,"trending_peak_score":null,"trending_peak_rank":null,"started_trending_at":null,"trended_number_one_at":null,"summary_generated":null,"summary_generated_at":null,"summary_model":null,"created_at":"2026-06-24T00:09:39.878444Z","updated_at":"2026-06-28T23:27:34.949517Z"},"effective_severity":"HIGH","badges":[],"impact_analysis":[],"cvss_v3_decoded":{"version":"3.1","metrics":[{"metric":"AV","name":"Attack Vector","value":"N","value_label":"Network"},{"metric":"AC","name":"Attack Complexity","value":"L","value_label":"Low"},{"metric":"PR","name":"Privileges Required","value":"N","value_label":"None"},{"metric":"UI","name":"User Interaction","value":"N","value_label":"None"},{"metric":"S","name":"Scope","value":"U","value_label":"Unchanged"},{"metric":"C","name":"Confidentiality","value":"N","value_label":"None"},{"metric":"I","name":"Integrity","value":"N","value_label":"None"},{"metric":"A","name":"Availability","value":"H","value_label":"High"}]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"0x676e67","vendor_name":"0x676e67","product_slug":"vproxy","product_name":"vproxy","version_start":"< 2.4.0","version_start_inclusive":true,"version_end":"< 2.4.0","version_end_inclusive":true,"cpe23_uri":"cve5:0x676e67:vproxy:< 2.4.0:< 2.4.0"}],"exploit_refs":[],"news":[],"references":[{"url":"https://github.com/0x676e67/vproxy/security/advisories/GHSA-7h24-c332-p48c","source_type":"VENDOR_ADVISORY","tags":["advisory"]},{"url":"https://github.com/0x676e67/vproxy/commit/aa1bf64c5e7f1c471395f9f29175ffc1b16a1079","source_type":"PATCH","tags":["patch"]},{"url":"https://github.com/0x676e67/vproxy/releases/tag/v2.4.0","source_type":"PATCH","tags":["patch"]}],"timeline":[{"type":"published","at":"2025-07-30T19:57:46.454000Z","label":"CVE published","source":null},{"type":"cvss_changed","at":"2026-06-28T17:47:49.389331Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:47:49.389331Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:47:49.389331Z","label":"CVSS score revised","source":"cvelistv5"}]}