Vulnerability details
CVE-2016-20046
zFTP Client
zFTP Client 20061220+dfsg3-4.1 Local Buffer Overflow
CVSS 4.0
8.6High
Official 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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 8.6High | 4.0 | CVEProject cvelistV5 (CNA) (VulnCheck) | 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 |
| 8.4High | 3.1 | CVEProject cvelistV5 (CNA) (VulnCheck) | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| zFTP | zFTP Client | 20061220+dfsg3-4.1 | CVEProject cvelistV5 (CNA) |
References and advisories
3
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Details
- Published
- 2026-03-28
- Last updated
- 2026-04-01
- State
- Published
- Assigner (CNA)
- VulnCheck
Exploit prediction (EPSS)
0.15%
Probability of exploitation in 30 days
4.4%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- Proof of concept
- Technical impact
- Total
Weaknesses (CWE)
- CWE-787Out-of-bounds Write