Signal is active with 1 mentions in latest observed window
Recommended action window: Monitor and triage in normal cycle
NVD description
A vulnerability in the Remote Access SSL VPN functionality of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Secure Firewall Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to exhaust device memory resulting in a denial of service (DoS) condition to new Remote Access SSL VPN connections. This does not affect the management interface, though it may become temporarily unresponsive. This vulnerability is due to trusting user input without validation. An attacker could exploit this vulnerability by sending crafted packets to the Remote Access SSL VPN server. A successful exploit could allow the attacker to cause the device web interface to stop responding, resulting in a DoS condition.
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
AVAILABLE
Momentum
STABLE
If you run products in this scope, you should treat this CVE as relevant to your environment.
| Date | Total | Labels |
|---|
| 2026-03-04 | 3 | Disclosure3 |
| 2026-03-05 | 1 | Patch1 |
| 2026-07-22 | 1 | General1 |
@AzRepGillette @MaricopaVote Last couple months... Check Point: CVE-2026-50751, CVE-2026-50752 Palo Alto: CVE-2026-0283 SonicWall: CVE-2026-15409, CVE-2026-15410 Cisco: CVE-2026-20103 (and related) Microsoft (SSTP): CVE-2026-50694 WireGuard (InHand): CVE-2026-38704
Post summary
The tweet merely lists several CVE identifiers, providing no additional details, proofs of exploitation, or remediation guidance.
🚨 Atenção, profissionais de segurança! Uma vulnerabilidade crítica (CVSS: 8.6) no Remote Access SSL VPN do Cisco ASA/FTD pode causar DoS. 🛡️ Atualize seus sistemas e restrinja o acesso ao serviço. Proteja sua rede! Saiba mais: https://www.tenable.com/cve/CVE-2026-20103 #Cybersecurity #Cisco #VPN
Post summary
The tweet warns of a critical DoS vulnerability in Cisco ASA/FTD VPN (CVE‑2026‑20103), provides a Tenable link, and urges users to update systems and limit access.
CVE-2026-20103 A vulnerability in the Remote Access SSL VPN functionality of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Secure Firewall Threat Defense (FTD… https://www.cve.org/CVERecord?id=CVE-2026-20103
Post summary
The text announces CVE‑2026‑20103 as a vulnerability in Cisco Secure Firewall’s Remote Access SSL VPN functionality, but it offers no proof‑of‑concept, exploit details, or patch information.
[CVE-2026-20103: HIGH] Critical vulnerability in Cisco Secure Firewall ASA and FTD software allows remote attackers to exploit SSL VPN, causing denial of service by depleting memory.#cve,CVE-2026-20103,#cybersecurity https://cvefind.com/CVE-2026-20103
Post summary
The post announces a high‑severity denial‑of‑service vulnerability in Cisco Secure Firewall ASA and FTD that allows remote attackers to exploit the SSL VPN and exhaust system memory.
🟠 CVE-2026-20103 - High A vulnerability in the Remote Access SSL VPN functionality of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Secure Firewall Threat Defense (FTD) Software could allow an... https://www.thehackerwire.com/vulnerability/CVE-2026-20103/ https://t.co/716HrhU5IK
Post summary
The post announces CVE-2026-20103 affecting Cisco Secure Firewall and points to a news article covering it.
2 of 2 entries
| Part | Vendor | Product | Version | Target SW | Target HW |
|---|---|---|---|---|---|
| OS | cisco | adaptive_security_appliance_software | - | - | - |
| App | cisco | secure_firewall_threat_defense | - | - | - |