CVE-2016-20046

HIGH

8.4

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.

CVE Details

CVSS v3.1 Score8.4

SeverityHIGH

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

Attack VectorLOCAL

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published3/28/2026

Last Modified3/30/2026

Sourcenvd

Honeypot Sightings0

Weaknesses (CWE)

CWE-787

References

http://cernlib.web.cern.ch/cernlib/(disclosure@vulncheck.com)

https://www.exploit-db.com/exploits/40203(disclosure@vulncheck.com)

https://www.vulncheck.com/advisories/zftp-client-20061220-dfsg3-local-buffer-overflow(disclosure@vulncheck.com)

IOC Correlations

No correlations recorded

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