This vulnerability is due to insufficient input validation when processing OSPF update packets. An attacker could exploit this vulnerability by sending crafted OSPF update packets. A successful exploit could allow the attacker to create a buffer overflow, causing the affected device to reload, resulting in a DoS condition.
Metrics
Affected Vendors & Products
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Solution
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Workaround
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Wed, 04 Mar 2026 22:15:00 +0000
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ssvc
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Wed, 04 Mar 2026 19:00:00 +0000
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| Description | A vulnerability in the OSPF protocol of Cisco Secure Firewall ASA Software and Cisco Secure FTD Software could allow an unauthenticated, adjacent attacker to cause an affected device to reload unexpectedly, resulting in a DoS condition. If OSPF authentication is enabled, the attacker must know the secret key to exploit this vulnerability. This vulnerability is due to insufficient input validation when processing OSPF update packets. An attacker could exploit this vulnerability by sending crafted OSPF update packets. A successful exploit could allow the attacker to create a buffer overflow, causing the affected device to reload, resulting in a DoS condition. | |
| Weaknesses | CWE-20 | |
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| Metrics |
cvssV3_1
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Projects
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MITRE
Status: PUBLISHED
Assigner: cisco
Published:
Updated: 2026-03-04T21:32:02.375Z
Reserved: 2025-10-08T11:59:15.351Z
Link: CVE-2026-20020
Vulnrichment
Updated: 2026-03-04T21:31:58.728Z
NVD
Status : Received
Published: 2026-03-04T19:16:11.687
Modified: 2026-03-04T19:16:11.687
Link: CVE-2026-20020
Redhat
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OpenCVE Enrichment
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