Vulnerability · Published Jun 24, 2022 · Assigned by CERTVDE
CVE-2022-32138CODESYS runtime system prone to denial of service due to Unexpected Sign Extension
High 8.8
In plain English
A high-severity security flaw in PLCWinNT from CODESYS. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.2% (higher than 69% of all known vulnerabilities).
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)1.2%top 31.2% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
In multiple CODESYS products, a remote attacker may craft a request which may cause an unexpected sign extension, resulting in a denial-of-service condition or memory overwrite.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| CODESYS | Runtime Toolkit | V2 – before V2.4.7.57 |
| CODESYS | PLCWinNT | V2 – before V2.4.7.57 |
Weakness: CWE-194 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H