Vulnerability · Published Oct 26, 2021 · Assigned by CERTVDE
CVE-2021-34596CODESYS V2 runtime: Access of Uninitialized Pointer may result in denial-of-service
Medium 6.5
In plain English
A medium-severity security flaw in CODESYS V2 from CODESYS. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 58% of all known vulnerabilities).
Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)0.8%top 42.2% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
A crafted request may cause a read access to an uninitialized pointer in CODESYS V2 Runtime Toolkit 32 Bit full and PLCWinNT prior to versions V2.4.7.56, resulting in a denial-of-service condition.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| CODESYS | CODESYS V2 | Runtime Toolkit 32 bit full – before V2.4.7.56PLCWinNT – before V2.4.7.56 |
Weakness: CWE-824 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H