CVE-2023-7242
CWE-125Published: March 1, 2024· Updated: Jun 17, 2026
Official Description
Industrial Control Systems Network Protocol Parsers (ICSNPP) - Ethercat
Zeek Plugin versions d78dda6 and prior are vulnerable to out-of-bounds
read during the process of analyzing a specific Ethercat packet. This
could allow an attacker to crash the Zeek process and leak some
information in memory.
Technical Analysis
CVE-2023-7242 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in availability disruption (denial of service), with a CVSS base score of 8.2.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
Official Patches & Advisories
All References (2)
Quick Facts
Related CVEs (CWE-125)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2023-7242 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts