CVE-2026-20101 - Vulnerability Analysis
HighCVSS: 8.6Last Updated: March 5, 2026
Cisco Secure Firewall ASA & Secure FTD - Denial of Service
Overview
Cisco Secure Firewall ASA Software and Secure FTD Software contain a denial of service vulnerability caused by insufficient error checking in SAML 2.0 SSO message processing, letting unauthenticated remote attackers cause device reloads, exploit requires sending crafted SAML messages.
Severity & Score
Impact
Unauthenticated remote attackers can cause device reloads, resulting in denial of service.
Mitigation
Update to the latest available version of Cisco Secure Firewall ASA Software and Secure FTD Software.
Social Media Activity(2 posts)
š New security advisory: CVE-2026-20101 affects multiple systems. ā¢ Impact: Significant security breach potential ā¢ Risk: Unauthorized access or data exposure ā¢ Mitigation: Apply patches within 24-48 hours Full breakdown: https://yazoul.net/advisory/cve/cve-2026-20101 #Cybersecurity #SecurityPatching #HackerNews
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š CVE-2026-20101 - High (8.6) A vulnerability in the SAML 2.0 single sign-on (SSO) feature of Cisco Secure Firewall ASA Software and Secure FTD Software could allow an unauthenticated, remote attacker to cause the device to reload unexpectedly, resulting in a DoS condition. ... š https://www.thehackerwire.com/vulnerability/CVE-2026-20101/ #CVE #vulnerability #infosec #cybersecurity #security #Tenda #patchstack
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Details
- CVE ID
- CVE-2026-20101
- Severity
- High
- CVSS Score
- 8.6
- Type
- denial_of_service
- Status
- unconfirmed
- EPSS
- 10.5%
- Social Posts
- 2
CWE
- CWE-330
CVSS Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H