CVE-2023-35921
CVSS 3.1 Score 7.5 of 10 (high)
Details
Summary
CVE-2023-35921 is a recently disclosed vulnerability affecting various Siemens SIMATIC MV series devices, including the MV540 H, MV540 S, MV550 H, MV550 S, MV560 U, and MV560 X models. These devices fail to properly process certain malicious Ethernet frames, making them susceptible to denial-of-service (DoS) attacks. The issue lies within the affected devices' handling of incoming network traffic, allowing unauthenticated remote attackers to trigger a condition that necessitates a manual restart of the devices to regain functionality. Versions prior to V3.3.4 are known to be affected.
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Affected Vendors
- Siemens AG
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