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CVE-2016-5764

43
FAUCET Score

CVE-2016-5764 describes a stack-based buffer overflow vulnerability in Micro Focus Rumba FTP client versions 4.X. This flaw allows an attacker to achieve arbitrary code execution if a client connects to a specially crafted malicious FTP server. With a CVSS v3 score of 8.8 (High), it poses a significant risk due to its network-based attack vector and high impact on confidentiality, integrity, and availability. While not listed in CISA's KEV catalog or showing active exploitation, public exploit code exists, including a Metasploit module, indicating its potential for use. Despite the availability of exploit code, there is minimal community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
4.0CPE matchmatch criteria
cpe:2.3:a:microfocus:rumba_ftp:4.0:*:*:*:*:*:*:*
4.1CPE matchmatch criteria
cpe:2.3:a:microfocus:rumba_ftp:4.1:*:*:*:*:*:*:*
4.2CPE matchmatch criteria
cpe:2.3:a:microfocus:rumba_ftp:4.2:*:*:*:*:*:*:*
4.3CPE matchmatch criteria
cpe:2.3:a:microfocus:rumba_ftp:4.3:*:*:*:*:*:*:*
4.4CPE matchmatch criteria
cpe:2.3:a:microfocus:rumba_ftp:4.4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.8HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
7.76%
Probability of exploitation in next 30 days
EPSS Percentile
94.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-40651 · Oct 31, 2016
This CVE's current EPSS score of 0.0776 is in the 94th percentile among its peer group of 14,855 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

community.microfocus.com / microfocus/mainframe_solutions/rumba/w/knowledge_base/28731.rumba-ftp-4-x-security-update.aspx
exploit-db.com / exploits/40651
securityfocus.com / bid/93974