VULNERABILITY INTELLIGENCE

CVE-2019-25686

CVSS score8.7 HIGH
EPSS probability0.47%
CISA KEVNot currently listed
Published2026-04-05
Last modified2026-07-24
CVSS vectorCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

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.

Weakness classification

  • CWE-306: Missing Authentication for Critical Function

Primary references