CVE-2021-30188 : CODESYS V2 runtime system SP before 2.4.7.55 has a Stack-based Buffer Overflow.

CODESYS V2 runtime system SP before 2.4.7.55 has a Stack-based Buffer Overflow.

Published 2021-05-25 13:15:18

Updated 2021-05-26 12:48:20

Source MITRE

View at NVD, CVE.org

Vulnerability category: OverflowMemory Corruption

Products affected by CVE-2021-30188

Codesys » V2 Runtime System Sp
Versions before (<) 2.4.7.55
cpe:2.3:a:codesys:v2_runtime_system_sp:*:*:*:*:*:*:*:*
Matching versions

EPSS FAQ

0.57%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 67 %

Percentile, the proportion of vulnerabilities that are scored at or less

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
7.5	HIGH	AV:N/AC:L/Au:N/C:P/I:P/A:P	10.0	6.4	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: Partial
9.8	CRITICAL	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	3.9	5.9	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High

CWE-787 Out-of-bounds Write

The product writes data past the end, or before the beginning, of the intended buffer.

Assigned by: nvd@nist.gov (Primary)

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