CVE-2026-20105General(cisco / adaptive_security_appliance_software)

LOWCVSS 7.7 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

Patch cisco adaptive_security_appliance_software systems immediately

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 authenticated, remote attacker with a valid VPN connection to exhaust device memory resulting in a denial of service (DoS) condition.This does not affect the management or MUS interfaces. 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 to reload, resulting in a DoS condition.

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0.5/ 10 priority

Sources & remediation

Vendor / third-party advisories

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-vpn-m9sx6MbC

Weakness type (CWE)

CWE-401

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

adaptive_security_appliance_software
secure_firewall_threat_defense

Threat summary

Patch or workaround signal is available
2 mentions across 2 observed days
Momentum state: stable

What's happening

Patch or workaround mentioned in 1 signal
Technical details provided in 1 signal
General: 1 classified signal
Peaked 1d ago at 1 mentions (2026-03-04); latest day: 1
2 total mentions across 2 days

Affected systems

Vendors

cisco

Products

adaptive_security_appliance_softwaresecure_firewall_threat_defense

Deep dive

Activity timeline2 mentions / 2d

Signal classification2 categories

General

150.0%

Patch

150.0%

Referenced assets2 URLs

By indicator

Classification over time

Date	Total	Labels

2026-03-04	1	General1
2026-03-05	1	Patch1

Full discourse2 posts

Fernando Karl@fernandokarl217d
Patch
🚨 Atenção, profissionais de segurança! A CVE-2026-20105 afeta as VPNs SSL do Cisco ASA/FTD, permitindo ataques que causam DoS por exaustão de memória. Aplique patches e revise suas políticas de acesso agora! 🔒 #Cibersegurança #VPN #Cisco https://www.tenable.com/cve/CVE-2026-20105
Post summary
The post announces CVE-2026-20105, describing a DoS vulnerability in Cisco ASA/FTD VPNs that can exhaustion memory, and urges readers to apply patches immediately.
0000056
254 followersView on X
CVE@CVEnew217d
General
CVE-2026-20105 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-2026-20105
Post summary
The text merely announces CVE‑2026‑20105 and links to its CVE record, without providing further technical, exploit, or mitigation details.
00000118
56.6K followersView on X

CPE platform detail2 entries

Part:

Vendor:

Product:

Version:

Target SW:

Target HW:

2 of 2 entries

Part	Vendor	Product	Version	Target SW	Target HW
OS	cisco	adaptive_security_appliance_software	-	-	-
App	cisco	secure_firewall_threat_defense	-	-	-

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