Cisco · Catalyst SD-WAN Manager
CVE-2026-76504
Cisco Catalyst SD-WAN Manager System Account Authorization Bypass Vulnerability
무엇인가
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.
CISA: Cisco Catalyst SD-WAN Manager contains a hex encoding vulnerability that could allow an unauthenticated, remote attacker to access an affected system with privileges of the admin user due to improper handling of URI encoding in an HTTP request.
할 일
Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
미국 연방 기관 조치 기한: 2026년 10월 3일
Cisco의 다른 악용된 결함
| 추가됨 | 취약점 | 제품 | 심각도 | 공격 가능성 |
|---|---|---|---|---|
| 2026. 6. 15. | Directory or Path Traversal | Catalyst SD-WAN Manager | 보통 6.5 | 29% |
| 2026. 6. 9. | Improper Encoding or Escaping of Output | Catalyst SD-WAN Manager | 높음 7.8 | 25% |
| 2026. 4. 20. | Storing Passwords in a Recoverable Format | Catalyst SD-WAN Manager | 높음 7.5 | 7.3% |
| 2026. 4. 20. | Exposure of Sensitive Information to an Unauthorized Actor | Catalyst SD-WAN Manager | 보통 6.5 | 31% |
| 2026. 10. 14. | Relative Path Traversal | Secure Email Gateway | 치명적 9.8 | 2.2% |
| 2026. 9. 16. | Incorrect Use of Privileged APIs | Identity Services Engine | 치명적 10.0 | 76% |
| 2026. 9. 14. | SQL Injection | Secure Email Gateway | 치명적 9.8 | 30% |
| 2026. 9. 9. | Firewall Management Center Authentication Bypass Using an Alternate Path or Channel | Secure Firewall Management Center (FMC) and Security Cloud Control (SCC) Firewall Management | 치명적 10.0 | 88% |
출처: Known Exploited Vulnerabilities(CISA, 퍼블릭 도메인), CVE records(cve.org), EPSS(FIRST). 공격 가능성은 누군가 향후 30일 안에 이 결함을 악용하려 할 확률에 대한 EPSS 추정치입니다.