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bdu:2026-01756

cisco-sa-snort3-dcerpc-vulns-J9HNF4tH — Multiple Cisco Products Snort 3 Distributed Computing Environment/Remote Procedure Call Vulnerabilities

Multiple Cisco products are affected by vulnerabilities in the processing of Distributed Computing Environment Remote Procedure Call (DCE/RPC) requests that could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to leak sensitive information or to restart, which would result in an interruption of packet inspection. For more information about these vulnerabilities, see the Details ["#details"] section of this advisory. Cisco has released software updates that address these vulnerabilities. There are workarounds that address these vulnerabilities.

EUVD-2026-268222

fkie_cve-2026-20027

Multiple Cisco products are affected by a vulnerability in the processing of DCE/RPC requests that could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to leak sensitive information or to restart, resulting in an interruption of packet inspection. This vulnerability is due to an error in buffer handling logic when processing DCE/RPC requests, which can result in a buffer out-of-bounds read. An attacker could exploit this vulnerability by sending a large number of DCE/RPC requests through an established connection that is inspected by Snort 3. A successful exploit could allow the attacker to obtain sensitive information in the Snort 3 data stream.

GHSA-8852-3pqj-jhpv

This vulnerability is due to an error in buffer handling logic when processing DCE/RPC requests, which can result in a buffer out-of-bounds read. An attacker could exploit this vulnerability by sending a large number of DCE/RPC requests through an established connection that is inspected by Snort 3. A successful exploit could allow the attacker to obtain sensitive information in the Snort 3 data stream.

WID-SEC-W-2026-0041 — Cisco Firewall Threat Defense, IOS XE und Meraki MX: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in Snort, Cisco Secure Firewall Threat Defense und Cisco IOS XE ausnutzen, um einen Denial of Service Angriff durchzuführen, und um Informationen offenzulegen.