PT-2026-93967 · Cisco · Secure Firewall Asa+3

CVE-2026-20250

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Published

2026-09-16

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Updated

2026-09-16

CVSS v3.1

8.6

High

VectorAV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Name of the Vulnerable Software and Affected Versions Cisco Secure Firewall Adaptive Security Appliance (ASA) Software (affected versions not specified) Cisco Secure Firewall Threat Defense (FTD) Software (affected versions not specified)
Description Improper resource management during the handling of Datagram TLS (DTLS) messages in Cisco Secure Firewall 3100 Series and 4200 Series devices allows an unauthenticated remote attacker to trigger a denial of service (DoS) condition. By sending a crafted stream of DTLS traffic, an attacker can cause the affected device to reload.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Missing Release of Resource after Effective Lifetime

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Weakness Enumeration

Related Identifiers

BDU:2026-15155
CVE-2026-20250

Affected Products

Secure Firewall 3100 Series
Secure Firewall 4200 Series
Secure Firewall Asa
Secure Firewall Ftd