CVE-2026-20182
Cisco Catalyst SD-WAN Controller Authentication Bypass Vulnerability
IN CISA KEV
Cisco Catalyst SD-WAN Controller & Manager contain an authentication bypass vulnerability that allows an unauthenticated, remote attacker to bypass authentication and obtain administrative privileges on an affected system.
- Vendor
- Cisco
- Product
- Catalyst SD-WAN
- CVSS
- No score recorded (no NVD record loaded for this entry)
- CWE
- CWE-287
- Published
- Not recorded
- NVD modified
- Not recorded
CISA KEV
- Date added
- 2026-05-14
- Due date
- 2026-05-17
- Ransomware use
- Unknown
- Required action
- Please adhere to CISA’s guidelines to assess exposure and mitigate risks associated with Cisco SD-WAN devices as outlined in CISA’s Emergency Directive 26-03 (URL listed below in Notes) and CISA’s Hunt & Hardening Guidance for Cisco SD-WAN Devices (URL listed below in Notes). Adhere to the applicable BOD 22-01 guidance for cloud services or discontinue use of the product if mitigations are not available.
EPSS
91.8% chance of exploitation in the next 30 days (percentile 99th)
FIRST EPSS, updated 17 Oct 2026. About EPSS
CVSS is severity, EPSS is likelihood, KEV means already exploited. EPSS is a statistical probability, not a certainty: a low score does not make a bug safe, and a high one does not prove it is being exploited.
Data last updated 18 Oct 2026. Sources: NVD API 2.0, CISA KEV catalog, FIRST EPSS. Links: NVD, CISA KEV. Metadata only. ThreatWire does not host exploit code.