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CVE-2022-22836

34
FAUCET Score

CVE-2022-22836 is a directory traversal vulnerability affecting CoreFTP Server versions prior to build 727. An authenticated attacker can exploit this flaw by using "../" in an HTTP PUT request to create files outside the intended directory. This vulnerability has a CVSS score of 6.5 (Medium), indicating it can be exploited over the network with low attack complexity and requires low privileges, leading to a high impact on integrity but no impact on confidentiality or availability. While not actively exploited in the wild and not listed in CISA's KEV catalog, public exploit code is available on ExploitDB (EDB-50652), and it has a high FAUCET Risk Score of 86/100, despite minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.2CPE matchmatch criteria
cpe:2.3:a:coreftp:core_ftp:*:*:*:*:*:*:*:*
2.0CPE matchmatch criteria
cpe:2.3:a:coreftp:core_ftp:2.0:build_639:*:*:*:*:*:*
2.0CPE matchmatch criteria
cpe:2.3:a:coreftp:core_ftp:2.0:build_640:*:*:*:*:*:*
2.0CPE matchmatch criteria
cpe:2.3:a:coreftp:core_ftp:2.0:build_641:*:*:*:*:*:*
2.0CPE matchmatch criteria
cpe:2.3:a:coreftp:core_ftp:2.0:build_642:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
5.37%
Probability of exploitation in next 30 days
EPSS Percentile
91.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-50652 · Jan 10, 2022
This CVE's current EPSS score of 0.0537 is in the 98th percentile among its peer group of 21,958 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

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

Remediation

Remediation records are not available for this CVE.

References

yoursecuritybores.me / coreftp-vulnerabilities
ExploitThird Party Advisory
coreftp.com / forums/viewtopic.php
Release NotesVendor Advisory