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Vulnerability Intelligence

CVE-2026-20311

Medium 6.3

Published
Last modified
NVD status
Awaiting Analysis

Description

A vulnerability in the web-based management interface of Cisco IOS XE Software could allow an authenticated, remote attacker with low privileges to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient error handling in the web-based management interface. An attacker could exploit this vulnerability by authenticating with a malformed certificate. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition.

References1

Metrics

CVSS 3.1
6.3 MEDIUM Score source: CNA CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H
EPSS — exploit probability
0% percentile: 17 · as of 13 November 2026
CWE
CWE-126

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