CVE-2020-3298

Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Malformed OSPF Packets Processing Denial of Service Vulnerability

HIGH

7.5

CVSS Score

Published: May 6, 2020 at 04:42 PM UTC

Updated: August 11, 2026 at 07:33 PM UTC

10 products affected across 1 vendorAdaptive Security ApplianceSecure Firewall Threat DefenseAsa 5525-X

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Severity

HIGH7.5

Exploit prediction

EPSS 2%

SSVC

No known exploit

Description

A vulnerability in the Open Shortest Path First (OSPF) implementation of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause the reload of an affected device, resulting in a denial of service (DoS) condition. The vulnerability is due to improper memory protection mechanisms while processing certain OSPF packets. An attacker could exploit this vulnerability by sending a series of malformed OSPF packets in a short period of time to an affected device. A successful exploit could allow the attacker to cause a reload of the affected device, resulting in a DoS condition for client traffic that is traversing the device.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Adaptive Security Appliance · Cisco

95%

9.10.0 ≤ v ≤ 9.10.1.379.12.0 ≤ v ≤ 9.12.3.79.13.0 ≤ v ≤ 9.13.1.79.6.0 ≤ v ≤ 9.6.4.409.8.0 ≤ v ≤ 9.8.4.179.9.0 ≤ v ≤ 9.9.2.66

cisco-asa-5506-x (environment) · cisco-asa-5506h-x (environment) · cisco-asa-5506w-x (environment) · cisco-asa-5508-x (environment) · cisco-asa-5516-x (environment) · cisco-asa-5525-x (environment) · cisco-asa-5545-x (environment) · cisco-asa-5555-x (environment)

Secure Firewall Threat Defense · Cisco

95%

6.2.0 ≤ v < 6.2.3.166.3.0 ≤ v < 6.3.0.66.4.0 ≤ v < 6.4.0.96.5.0 ≤ v < 6.5.0.5

Asa 5506-X · Ciscodevice

80%

All versions

Asa 5506H-X · Ciscodevice

80%

All versions

Asa 5506W-X · Ciscodevice

80%

All versions