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.
Published 2022-06-24 08:15:08
Updated 2022-07-01 13:36:32
Source CERT VDE
View at NVD,   CVE.org
Vulnerability category: Denial of service

Exploit prediction scoring system (EPSS) score for CVE-2022-32138

0.26%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 64 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2022-32138

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
6.5
MEDIUM AV:N/AC:L/Au:S/C:P/I:P/A:P
8.0
6.4
NIST
8.8
HIGH CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
2.8
5.9
CERT VDE

CWE ids for CVE-2022-32138

  • The product performs an operation on a number that causes it to be sign extended when it is transformed into a larger data type. When the original number is negative, this can produce unexpected values that lead to resultant weaknesses.
    Assigned by: info@cert.vde.com (Primary)

Products affected by CVE-2022-32138

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