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CVE-2020-27632

CVE-2020-27632

EPSS 1.2%
In SIMATIC MV400 family versions prior to v7.0.6, the ISN generator is initialized with a constant value and has constant increments. An attacker could predict and hijack TCP sessions.
Affected products
n/a · n/a

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References
https://cert-portal.siemens.com/productcert/pdf/ssa-599268.pdfhttps://www.cisa.gov/news-events/ics-advisories/icsa-21-042-01https://www.forescout.com/resources/numberjack-weak-isn-generation-in-embedded-tcpip-stacks/