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CVE-2022-31806

32
FAUCET Score

CVE-2022-31806 is a critical vulnerability affecting CODESYS V2 PLCWinNT and Runtime Toolkit 32 versions prior to V2.4.7.57, where password protection is not enabled by default and users are not prompted to set one. This flaw carries a CVSS score of 9.8 (CRITICAL) due to its network-based attack vector, low attack complexity, and high impact on confidentiality, integrity, and availability. While there is no evidence of active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered significant community discussion with 13 mentions and media coverage, indicating awareness and potential for future exploitation. It is not listed in the CISA KEV catalog.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.4.7.57CPE matchmatch criteria
cpe:2.3:a:codesys:plcwinnt:*:*:*:*:*:*:*:*
< 2.4.7.57CPE matchmatch criteria
cpe:2.3:a:codesys:runtime_toolkit:*:*:*:*:*:*:x86:*

CVSS Data

CVSS version used by this source: 2.0

6.8MEDIUM

AV:N/AC:M/Au:N/C:P/I:P/A:P

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.15%
Probability of exploitation in next 30 days
EPSS Percentile
63.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0115 is in the 49th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

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

Remediation

Remediation records are not available for this CVE.

References

customers.codesys.com / index.php
Third Party Advisory