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Vulnerability Intelligence

CVE-2026-20027

Medium 5.3

Published
Last modified
NVD status
Deferred

Description

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.

References1

Metrics

CVSS 3.1
5.3 MEDIUM Score source: CNA CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
EPSS — exploit probability
1% percentile: 49 · as of 11 November 2026
CWE
CWE-200

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