Cisco Catalyst SD-WAN Manager Hex Encoding Vulnerability
CVE-2026-76504 Exploited
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.
Being exploited in the wild
Catalogued 30 September 2026 · US federal remediation deadline 3 October 2026
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…
Exploit code is also public: Public PoC
- Public PoCShadowForge-Cyber/CVE-2026-76504-Proof-of-concept2 stars
- Public PoCpastelghost3/cve-2026-76504-nuclei
- Public PoCmaxprog-svg/CVE-2026-76504-Cisco
Assessment
- CVSS
- Not yet scored
- Severity
- Unscored
- Known exploited
- Yes — listed in the CISA KEV catalog
- Exploit availability
- CISA KEV, Public PoC
- Published
- 30 September 2026
- Last updated
- 30 September 2026
- Affected
- Cisco · Catalyst SD-WAN Manager
- Weakness
- CWE-177
At the source
References
Query this programmatically
Agents can read this through the MCP endpoint, or over HTTP:
curl https://www.cve.zerocrew.in/api/cve/CVE-2026-76504