RCE in Codesys Plcwinnt
CVE-2022-31806
In CODESYS V2 PLCWinNT and Runtime Toolkit 32 in versions prior to V2.4.7.57 password protection is not enabled by default and there is no information or prompt to enable password protection at login in case no password is set at the controller.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.012 (67.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 68th percentile — 67.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000
Affected products
- Codesys Plcwinnt — versions V2
- Codesys Runtime Toolkit 32 Bit Full — versions V2
- Codesys Plcwinnt
- Codesys Runtime Toolkit
Weakness classification (CWE)
Public proof-of-concept exploits
References
- customers.codesys.com/index.php (Third Party Advisory)
Frequently asked questions
- What is CVE-2022-31806?
- CVE-2022-31806 is a critical-severity vulnerability in Codesys Plcwinnt, classified under Initialization of a Resource with an Insecure Default. CVSS score: 9.8/10. Published 2022-06-24.
- How severe is CVE-2022-31806?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2022-31806 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.