9.8

CVE-2022-31802: codesys codesys gateway server v2 Partial String Comparison

CVSS: 9.8v3.1CriticalModified
Published 24-06-2022Last modified 17-09-2024
Open JSON

Vulnerability summary

CVE-2022-31802 is a critical (CVSS 9.8) Partial String Comparison vulnerability in codesys codesys gateway server v2. EPSS estimates a 1.30% chance of exploitation in the next 30 days, higher than 70% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (CVE.org)
EPSS score
1.30%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 24-06-2022
    PublishedVulnerability first disclosed.
  2. 17-09-2024
    Last modifiedVulnerability information updated.

Description

In CODESYS Gateway Server V2 for versions prior to V2.3.9.38 only a part of the the specified password is been compared to the real CODESYS Gateway password. An attacker may perform authentication by specifying a small password that matches the corresponding part of the longer real CODESYS Gateway password.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

1.30%

Chance of exploitation in the next 30 days

Percentile

70%

Versus all other CVEs

30-day change

0.00 pp

From 1.30% on 20-09-2026

20-09-202620-10-2026
EPSS score
1.30%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Codesys2 products

1 vendor · 2 products

References

1 links