CVE-2026-20027
Severity CVSS v4.0:
Pending analysis
Type:
CWE-200
Information Leak / Disclosure
Publication date:
07/01/2026
Last modified:
08/01/2026
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.<br />
<br />
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.
Impact
Base Score 3.x
5.30
Severity 3.x
MEDIUM