CVE Alert: CVE-2025-54581
Vulnerability Summary: CVE-2025-54581
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.
Affected Endpoints:
No affected endpoints listed.
Published Date:
7/30/2025, 8:15:37 PM
🔥 CVSS Score:
Exploit Status:
Not ExploitedReferences:
- https://github.com/0x676e67/vproxy/commit/aa1bf64c5e7f1c471395f9f29175ffc1b16a1079
- https://github.com/0x676e67/vproxy/releases/tag/v2.4.0
- https://github.com/0x676e67/vproxy/security/advisories/GHSA-7h24-c332-p48c
Recommended Action:
No proposed action available. Please refer to vendor documentation for updates.
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