CVE-2022-20697

Cisco IOS and IOS XE Software Web Services Denial of Service Vulnerability

HIGH
8.6
CVSS Score
Published: April 15, 2022 at 02:15 PM UTC
Updated: June 17, 2026 at 04:24 AM UTC
2 products affected across 1 vendorIOSIOS Xe

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Severity
HIGH8.6
Exploit prediction
EPSS 1%
SSVC
No known exploit

Description

A vulnerability in the web services interface of Cisco IOS Software and Cisco IOS XE Software could allow an authenticated, remote attacker to cause a denial of service (DoS) condition. This vulnerability is due to improper resource management in the HTTP server code. An attacker could exploit this vulnerability by sending a large number of HTTP requests to an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.

Affected

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.6HIGHcisco
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-691CWE-772

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