What’s Vulnerable › Vulnerabilities

CVE-2023-7243: Ethercat Zeek Plugin Out-of-bounds Write

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-03-01 · updated 2026-06-17
• Weakness: CWE-787

Description

Industrial Control Systems Network Protocol Parsers (ICSNPP) - Ethercat Zeek Plugin versions d78dda6 and prior are vulnerable to out-of-bounds write while analyzing specific Ethercat datagrams. This could allow an attacker to cause arbitrary code execution.

Affected products

• CISA Industrial Control Systems Network Protocol Parsers (ICSNPP) - Ethercat Plugin for Zeek: through d78dda6

References

• https://www.cisa.gov/news-events/ics-advisories/icsa-24-051-02
• https://www.cisa.gov/news-events/ics-advisories/icsa-24-051-02

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