CVE-2022-31802

Q: How do I fix CVE-2022-31802?

Upgrade gateway to 2.3.9.38 or later.

Q: Is CVE-2022-31802 being actively exploited?

Not that we know of. CVE-2022-31802 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 1.2% is the estimated probability that it will be exploited in the next 30 days. That is higher than 65% of all scored CVEs.

Q: How severe is CVE-2022-31802?

CVE-2022-31802 has a CVSS v3 base score of 9.8, rated critical. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

Q: What does CVE-2022-31802 affect?

Published advisories record a fix for gateway (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

CRITICAL

9.8

CVSS v3

NVD

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.

CWE-187

How to fix

Remediation Available

gatewayNVD

Affected:>= 2.0, < 2.3.9.38Fixed in:2.3.9.38CVE-2022-31802derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

1.18%probability of exploitation in 30 days

65thpercentile

Moderate risk: more likely to be exploited than 65% of all known CVEs.

References

Vendor Advisory1

customers.codesys.com

Related Vulnerabilities

Other CWE-187 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-41110	Critical	9.9	16%	-	Fix
CVE-2024-39742	High	8.1	0.8%	-	Fix
CVE-2026-35031	Critical	9.9	0.8%	-	Fix
CVE-2026-44837	Medium	5.9	0.4%	-	Fix
CVE-2026-34785	High	7.5	0.4%	-	Fix
CVE-2026-55602	High	8.6	0.4%	-	Fix

Common questions

How do I fix CVE-2022-31802?

Upgrade gateway to 2.3.9.38 or later.

Is CVE-2022-31802 being actively exploited?

Not that we know of. CVE-2022-31802 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 1.2% is the estimated probability that it will be exploited in the next 30 days. That is higher than 65% of all scored CVEs.

How severe is CVE-2022-31802?

CVE-2022-31802 has a CVSS v3 base score of 9.8, rated critical. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2022-31802 affect?

Published advisories record a fix for gateway (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

Embed a live status badge for CVE-2022-31802

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.