CVE-2022-31804
published 2022-06-24CVE-2022-31804: The CODESYS Gateway Server V2 does not verifiy that the size of a request is within expected limits. An unauthenticated attacker may allocate an arbitrary…
PriorityP344high7.5CVSS 3.1
AVNACLPRNUINSUCNINAH
EPSS
1.03%
59.9th percentile
The CODESYS Gateway Server V2 does not verifiy that the size of a request is within expected limits. An unauthenticated attacker may allocate an arbitrary amount of memory, which may lead to a crash of the Gateway due to an out-of-memory condition.
Affected
2 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| codesys | codesys_gateway_server_v2 | >= unspecified < V2.3.9.38 | V2.3.9.38 |
| codesys | gateway | >= 2.0 < 2.3.9.38 | 2.3.9.38 |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
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CISA ICS
FESTO CODESYS
cisa_ics·2025-07-01·CVSS 9.8
[CRITICAL] FESTO CODESYS
ICS Advisory
##
FESTO CODESYS
Release DateJuly 01, 2025
Alert CodeICSA-25-182-03
Related topics:
Industrial Control System Vulnerabilities, Industrial Control Systems
View CSAF
## 1. EXECUTIVE SUMMARY
- CVSS v3 9.8
- ATTENTION: Exploitable remotely/low attack complexity
- Vendor: FESTO
- Equipment: CODESYS
- Vulnerabilities: Partial String Comparison, Uncontrolled Resource Consumption, Memory Allocation with Excessive Size Value
## 2. RISK EVALUATION
Successful exploitation of these vulnerabilities could allow an attacker to block legitimate user connections, crash the application, or authenticate without proper credentials.
## 3. TECHNICAL DETAILS
## 3.1 AFFECTED PRODUCTS
FESTO reports that the following products are affected:
- FESTO CODESYS Gatew
GHSA
GHSA-qhgm-4r4g-j663: The CODESYS Gateway Server V2 does not verifiy that the size of a request is within expected limits
ghsa_unreviewed·2022-06-25
CVE-2022-31804 [HIGH] CWE-789 GHSA-qhgm-4r4g-j663: The CODESYS Gateway Server V2 does not verifiy that the size of a request is within expected limits
The CODESYS Gateway Server V2 does not verifiy that the size of a request is within expected limits. An unauthenticated attacker may allocate an arbitrary amount of memory, which may lead to a crash of the Gateway due to an out-of-memory condition.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2022-06-24
Published