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Mallory
Medium

DoS in Cisco Snort 3 VBA decompression error handling

IdentifiersCVE-2026-20058CWE-754

Multiple Cisco products are affected by vulnerabilities in the Snort 3 Visual Basic for Applications (VBA) feature that could allow an unauthenticated remote attacker to cause the Snort 3 Detection Engine to crash. The issue is due to improper error checking when decompressing VBA data. An attacker can exploit this by sending crafted VBA data to the Snort 3 Detection Engine on the targeted device, resulting in an unexpected restart of the detection engine and a denial-of-service condition.

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Unauthenticated remote denial of service against the Snort 3 Detection Engine: the engine can crash and/or unexpectedly restart, disrupting inspection/detection functionality on the affected device(s).
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VALID 0 / 0 TOTALView more in app

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