HIGH✓ PATCH🇬🇧 English

CVE-2026-20049

CVSS 7.7v3.1pub. 2026-03-04upd. 2026-04-16

A vulnerability in the processing of Galois/Counter Mode (GCM)-encrypted Internet Key Exchange version 2 (IKEv2) IPsec traffic of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software could allow an authenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to the allocation of an insufficiently sized block of memory. An attacker could exploit this vulnerability by sending crafted GCM-encrypted IPsec traffic to an affected device. A successful exploit could allow the attacker to cause an unexpected reload of the device, resulting in a DoS condition. To exploit this vulnerability, the attacker must have valid credentials to establish a VPN connection with the affected device.

oryginał EN
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
  • Cisco Adaptive Security Appliance Software

    OS
    Cisco
    9.18.1 – 9.18.4.66 (bez)9.19.1 – 9.20.3.20 (bez)9.22.1.1 – 9.22.2.4 (bez)9.23.1 – 9.23.1.3 (bez)
  • Cisco Firepower Threat Defense Software

    APP
    Cisco
    7.2.0 – 7.2.11 (bez)7.3.0 – 7.4.3 (bez)7.6.0 – 7.6.4 (bez)7.7.0 – 7.7.10 (bez)
🟢
PATCH DOSTĘPNY
Aktualizacja od producenta gotowa. Wdrożenie w ramach standardowego cyklu.
Tagi
DoSFirewallVPN
CWE
Referencje

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