CVE-2026-20182 Details.
Cisco Catalyst SD-WAN Controller - vHub Authentication Bypass
Atlas does not check this one. Not a plain web check.
This weakness is not found through ordinary web pages. It needs a different kind of connection to the service. Atlas only runs plain web, DNS and TLS checks, so it does not run this one.
About CVE-2026-20182. What It Means.
Cisco Catalyst SD-WAN Controller and Manager contain an authentication bypass caused by improper peering authentication mechanism, letting unauthenticated remote attackers obtain administrative privileges, exploit requires sending crafted requests.
Affected Product. What Is Hit.
- Vendor
- cisco
- Product
- Cisco Catalyst SD WAN Controller
References. Where To Read More.
- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-rpa2-v69WY2SW
- https://blog.talosintelligence.com/sd-wan-ongoing-exploitation/
- https://www.rapid7.com/blog/post/ve-cve-2026-20182-critical-authentication-bypass-cisco-catalyst-sd-wan-controller-fixed/
- https://nvd.nist.gov/vuln/detail/CVE-2026-20182
FAQ
Common Questions.
Cisco Catalyst SD-WAN Controller - vHub Authentication Bypass. Cisco Catalyst SD-WAN Controller and Manager contain an authentication bypass caused by improper peering authentication mechanism, letting unauthenticated remote attackers obtain administrative privileges, exploit requires sending crafted requests.
No. This weakness is not found through ordinary web pages. It needs a different kind of connection to the service. Atlas only runs plain web, DNS and TLS checks, so it does not run this one. The facts about CVE-2026-20182 are on this page, and you can request a demo to see how Brandefense watches your whole external attack surface.
Yes. CVE-2026-20182 is on the CISA Known Exploited Vulnerabilities list, which means attackers have used it against real targets.
Update Cisco Catalyst SD WAN Controller to the latest version from the vendor, or follow the vendor's advice to switch off the affected feature. Vendor links are listed on this page when they are known.
This page lists the public facts about CVE-2026-20182. Atlas does not run a check for it, so nothing here says whether a particular site is affected.