criticalKEV
CVE-2025-20333
Cisco ASA/FTD VPN web server buffer overflow - unauthenticated root RCE (ArcaneDoor-class; CISA ED 25-03)
- Severity
- critical
- Affected product
- Cisco ASA/FTD WebVPN
- Affected versions
- Cisco ASA/FTD WebVPN all versions before the fix
- Detection basis
- Appliance fingerprint
- Shipped rule
- Cisco ASA/FTD WebVPN: Cisco ASA/FTD VPN web server buffer overflow - unauthenticated root RCE (ArcaneDoor-class; CISA ED 25-03)
- CISA KEV
- Listed as a known exploited vulnerability
- EPSS
- 90% chance of exploitation in the next 30 days
- Added to NewScan
- 2026-08-06
- Detected by
- NewScan — free, self-hosted
How NewScan reports it
APPLIANCE FINGERPRINT
NewScan fingerprints the Cisco ASA/FTD WebVPN appliance and reports this CVE when the detected version falls inside the affected range below.
References
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