CVE-2026-76504

KEV
Published: Set 30, 2026 Last Modified: Ott 03, 2026
ExploitDB:
Other exploit source:
Google Dorks:
CRITICAL 9,8
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high

Description

AI Translation Available

A vulnerability in the API session-based authentication management of Cisco Catalyst SD-WAN Manager could allow an unauthenticated, remote attacker to access an affected system with privileges of the admin user.

This vulnerability is due to improper handling of URI encoding in an HTTP request, which allows the request to bypass an authentication rule that is intended to restrict access to a specific API endpoint. An attacker could exploit this vulnerability by sending a crafted HTTP request to the API of the affected system. A successful exploit could allow the attacker to bypass authentication and gain access to the API as the admin user.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,0110
Percentile
0,6th
Updated

EPSS Score Trend (Last 6 Days)

177

Improper Handling of URL Encoding (Hex Encoding)

Draft
Abstraction: Variant Structure: Simple
Common Consequences
Security Scopes Affected:
Integrity
Potential Impacts:
Unexpected State
Applicable Platforms
All platforms may be affected
View CWE Details
Application

Catalyst Sd-Wan Manager by Cisco

Product Information
Vendor Cisco
Product Catalyst Sd-Wan Manager
Version Range Affected
From 20.12 (inclusive)
To 20.12.8.2 (exclusive)
cpe:2.3:a:cisco:catalyst_sd-wan_manager:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Catalyst Sd-Wan Manager by Cisco

Product Information
Vendor Cisco
Product Catalyst Sd-Wan Manager
Version Range Affected
From 20.18 (inclusive)
To 20.18.4.1 (exclusive)
cpe:2.3:a:cisco:catalyst_sd-wan_manager:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Catalyst Sd-Wan Manager by Cisco

Product Information
Vendor Cisco
Product Catalyst Sd-Wan Manager
Version Range Affected
To 20.9.10.1 (exclusive)
cpe:2.3:a:cisco:catalyst_sd-wan_manager:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Catalyst Sd-Wan Manager by Cisco

Product Information
Vendor Cisco
Product Catalyst Sd-Wan Manager
Version Range Affected
From 20.15 (inclusive)
To 20.15.6.1 (exclusive)
cpe:2.3:a:cisco:catalyst_sd-wan_manager:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Catalyst Sd-Wan Manager by Cisco

Product Information
Vendor Cisco
Product Catalyst Sd-Wan Manager
Version 26.2
cpe:2.3:a:cisco:catalyst_sd-wan_manager:26.2:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Catalyst Sd-Wan Manager by Cisco

Product Information
Vendor Cisco
Product Catalyst Sd-Wan Manager
Version Range Affected
From 26.1 (inclusive)
To 26.1.2.1 (exclusive)
cpe:2.3:a:cisco:catalyst_sd-wan_manager:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
https://www.cisa.gov/known-exploited-vulnerabilities-catalo…
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026…
https://sec.cloudapps.cisco.com/security/center/content/Cis…
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/c…