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CVE-2025-20327

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CVE-2025-20327

Published: Sep 24, 2025

Modified: Sep 24, 2025

PUBLISHED

CVSS v3.1

7.7

HIGH

Description

A vulnerability in the web UI of Cisco IOS 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 improper input validation. An attacker could exploit this vulnerability by sending a crafted URL in an HTTP request. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition.

VendorProductVersions

Cisco

IOS

affected
15.2(6)E2
affected
15.2(7)E
affected
15.2(6)E2a
affected
15.2(6)E2b
affected
15.2(7)E1

+24 more versions

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

None

Integrity

None

Availability

High

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