CVE-2016-20046 HIGH

CVE-2016-20046: zFTP Client 20061220+dfsg3-4.1 Local Buffer Overflow

Vendor Zftp
Product zFTP Client
Weakness CWE-787
Published March 28, 2026
Last update April 1, 2026
View on NVD All CVEs

CVSS base score

8.6/10
Attack vector Local
Attack complexity Low
Privileges required None
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

What the vulnerability does

01Description

zFTP Client 20061220+dfsg3-4.1 contains a buffer overflow vulnerability in the NAME parameter handling of FTP connections that allows local attackers to crash the application or execute arbitrary code. Attackers can supply an oversized NAME value exceeding the 80-byte buffer allocated in strcpy_chk to overwrite the instruction pointer and execute shellcode with user privileges.

Key dates

02Disclosure timeline

March 28, 2026 CVE published
April 1, 2026 Record updated