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CVE-2020-5204

22
FAUCET Score

CVE-2020-5204 describes a buffer overflow vulnerability in uftpd versions prior to 2.11, specifically within the handle_PORT function in ftpcmd.c. This flaw arises from an undersized buffer being filled with user-controlled input via sprintf(), impacting troglobit uftpd. The vulnerability carries a high CVSS score of 8.8, indicating a network-exploitable flaw with low attack complexity that can lead to complete compromise of confidentiality, integrity, and availability. Despite its severity, there is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.11CPE matchmatch criteria
cpe:2.3:a:troglobit:uftpd:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
LOW
Exploitability Score
2.3
Impact Score
3.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.08%
Probability of exploitation in next 30 days
EPSS Percentile
61.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0108 is in the 58th percentile among its peer group of 17,805 CVEs.

Social Chatter

No social media mentions found for this CVE.

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

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

lists.opensuse.org / opensuse-security-announce/2020-01/msg00034.html
github.com / troglobit/uftpd/commit/0fb2c031ce0ace07cc19cd2cb2143c4b5a63c9dd
PatchThird Party Advisory
github.com / troglobit/uftpd/security/advisories/GHSA-wrpr-xw7q-9wvq
Third Party Advisory