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CVE-2022-22517

21
FAUCET Score

CVE-2022-22517 is an unauthenticated remote vulnerability affecting CODESYS products, allowing an attacker to disrupt communication channels. By guessing a valid channel ID and injecting packets, an attacker can force the closure of existing communication channels. This vulnerability has a CVSS score of 7.5 (High) due to its network attack vector, low attack complexity, and high availability impact, with no confidentiality or integrity impact. There is currently no public exploit code available (Metasploit, Nuclei, ExploitDB), it is not listed in the KEV catalog, and community discussion is minimal, indicating low active exploitation or widespread attention.

Impacted Technologies

VendorProductVersion(s)CPE
< 4.5.0.0CPE matchmatch criteria
cpe:2.3:a:codesys:control_for_beaglebone_sl:*:*:*:*:*:*:*:*
< 4.5.0.0CPE matchmatch criteria
cpe:2.3:a:codesys:control_for_beckhoff_cx9020:*:*:*:*:*:*:*:*
< 4.5.0.0CPE matchmatch criteria
cpe:2.3:a:codesys:control_for_empc-a\/imx6_sl:*:*:*:*:*:*:*:*
< 4.5.0.0CPE matchmatch criteria
cpe:2.3:a:codesys:control_for_iot2000_sl:*:*:*:*:*:*:*:*
< 4.5.0.0CPE matchmatch criteria
cpe:2.3:a:codesys:control_for_linux_sl:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.27%
Probability of exploitation in next 30 days
EPSS Percentile
66.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0127 is in the 46th percentile among its peer group of 51,551 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

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

Remediation

Vendor Patches (6)

cephvendor investigatingvia llm_extracted
d-linkvendor investigatingvia llm_extracted
humansignalvendor investigatingvia llm_extracted
hyperledgervendor investigatingvia llm_extracted
m2teamvendor investigatingvia llm_extracted
roundcubevendor investigatingvia llm_extracted

Vendor Advisories (6)

hyperledgerllm-hyperledger-3448c988015c5affHIGH

Vulnerabilities in the communication protocol of the PLC runtime

May 2, 2022
roundcubellm-roundcube-99743aeebe85a0d5HIGH

Vulnerabilities in the communication protocol of the PLC runtime

May 2, 2022
cephllm-ceph-8e475b1d3e73e8f4HIGH

Vulnerabilities in the communication protocol of the PLC runtime

May 2, 2022
humansignalllm-humansignal-cf346daa1e679dfdHIGH

Vulnerabilities in the communication protocol of the PLC runtime

May 2, 2022
d-linkllm-d-link-ee3f819351186de4HIGH

Vulnerabilities in the communication protocol of the PLC runtime

May 2, 2022
m2teamllm-m2team-cda26ef638bf29d4HIGH

Vulnerabilities in the communication protocol of the PLC runtime

May 2, 2022

References

customers.codesys.com / index.php
Vendor Advisory