Stack-based buffer overflow in uftpd - CVE-2026-59964
Published: July 13, 2026
Vulnerability identifier: #VU137385
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N/E:P/U:Green
CVE-ID: CVE-2026-59964
CWE-ID: CWE-121
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vendor: Joachim Nilsson
Affected software:
uftpd
uftpd
Detailed vulnerability description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error in compose_path(). A remote user can trigger stack-based buffer overflow and cause a denial of service condition on the target system.
How to mitigate CVE-2026-59964
Install updates from vendor's website.