4.3

CVE-2026-20021

A vulnerability in the OSPF protocol of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software could allow an authenticated, adjacent attacker to exhaust memory on an affected device, resulting in a denial of service (DoS) condition.

 This vulnerability is due to improperly validating input by the OSPF protocol when parsing packets. An attacker could exploit this vulnerability by by sending crafted OSPF packets to an affected device. A successful exploit could allow the attacker to exhaust memory on the affected device, resulting in a DoS condition.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
CiscoAdaptive Security Appliance Software Version >= 9.12.1 <= 9.12.4.67
CiscoAdaptive Security Appliance Software Version >= 9.16.1 <= 9.16.4.85
CiscoAdaptive Security Appliance Software Version >= 9.17.1 <= 9.17.1.46
CiscoAdaptive Security Appliance Software Version >= 9.18.1 <= 9.18.4.68
CiscoAdaptive Security Appliance Software Version >= 9.19.1 <= 9.19.1.42
CiscoAdaptive Security Appliance Software Version >= 9.20.1 <= 9.20.4.14
CiscoAdaptive Security Appliance Software Version >= 9.22.1.1 <= 9.22.2.14
CiscoAdaptive Security Appliance Software Version >= 9.23.1 <= 9.23.1.22
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.01% 0.006
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
psirt@cisco.com 4.3 2.8 1.4
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CWE-401 Missing Release of Memory after Effective Lifetime

The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory.