CVE-2016-20046

HighCVSS 8.4/10Last modified Jun 17, 2026

Description

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.

Metrics

CVSS 3.1 8.4/10CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-787

Affected software

Vendor	Product	Versions
zFTP	zFTP Client	20061220+dfsg3-4.1

References

Timeline

Published: Mar 28, 2026
Last modified: Jun 17, 2026
NVD status: Deferred

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