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CVE-2026-53994 ProFTPD mod_sftp Heap Buffer Overflow via Unsigned Integer Underflow and Size Truncation

🗓️ 18 Jul 2026 19:30:32Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 3 Views

ProFTPD mod_sftp heap overflow from unsigned underflow in packet_len 0; authenticated SFTP user can cause denial of service.

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21 Jul 2026 03:41Current
6Medium risk
Vulners AI Score6
CVSS 47.7
EPSS0.00405
3