CVE-2019-25686
HIGH
NVD
CVSS Score
7.5
Severity
HIGH
Published
Apr 05, 2026
Vendor
unknown
Description
Core FTP 2.0 build 653 contains a denial of service vulnerability in the PBSZ command that allows unauthenticated attackers to crash the service by sending a malformed command with an oversized buffer. Attackers can send a PBSZ command with a payload exceeding 211 bytes to trigger an access violation and crash the FTP server process.