CVE-2026-20022

EUVD-2026-9479
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 when OSPF canonicalization debug is enabled by using the command debug ip ospf canon.

 This vulnerability is due to insufficient input validation when processing OSPF LSU packets. An attacker could exploit this vulnerability by sending crafted unauthenticated OSPF packets. A successful exploit could allow the attacker to write to memory outside of the packet data, causing the device to reload, resulting in a DoS condition.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
6.1 MEDIUM
ADJACENT_NETWORK
HIGH
NONE
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Affected Products (NVD)
VendorProductVersion
ciscoadaptive_security_appliance_software
9.12.1
ciscoadaptive_security_appliance_software
9.12.1.2
ciscoadaptive_security_appliance_software
9.12.1.3
ciscoadaptive_security_appliance_software
9.12.2
ciscoadaptive_security_appliance_software
9.12.2.1
ciscoadaptive_security_appliance_software
9.12.2.4
ciscoadaptive_security_appliance_software
9.12.2.5
ciscoadaptive_security_appliance_software
9.12.2.9
ciscoadaptive_security_appliance_software
9.12.3
ciscoadaptive_security_appliance_software
9.12.3.2
ciscoadaptive_security_appliance_software
9.12.3.7
ciscoadaptive_security_appliance_software
9.12.3.9
ciscoadaptive_security_appliance_software
9.12.3.12
ciscoadaptive_security_appliance_software
9.12.4
ciscoadaptive_security_appliance_software
9.12.4.2
ciscoadaptive_security_appliance_software
9.12.4.4
ciscoadaptive_security_appliance_software
9.12.4.7
ciscoadaptive_security_appliance_software
9.12.4.8
ciscoadaptive_security_appliance_software
9.12.4.10
ciscoadaptive_security_appliance_software
9.12.4.13
ciscoadaptive_security_appliance_software
9.12.4.18
ciscoadaptive_security_appliance_software
9.12.4.24
ciscoadaptive_security_appliance_software
9.12.4.26
ciscoadaptive_security_appliance_software
9.12.4.29
ciscoadaptive_security_appliance_software
9.12.4.30
ciscoadaptive_security_appliance_software
9.12.4.35
ciscoadaptive_security_appliance_software
9.12.4.37
ciscoadaptive_security_appliance_software
9.12.4.38
ciscoadaptive_security_appliance_software
9.12.4.39
ciscoadaptive_security_appliance_software
9.12.4.40
ciscoadaptive_security_appliance_software
9.12.4.41
ciscoadaptive_security_appliance_software
9.12.4.47
ciscoadaptive_security_appliance_software
9.12.4.48
ciscoadaptive_security_appliance_software
9.12.4.50
ciscoadaptive_security_appliance_software
9.12.4.52
ciscoadaptive_security_appliance_software
9.12.4.54
ciscoadaptive_security_appliance_software
9.12.4.55
ciscoadaptive_security_appliance_software
9.12.4.56
ciscoadaptive_security_appliance_software
9.12.4.58
ciscoadaptive_security_appliance_software
9.12.4.62
ciscoadaptive_security_appliance_software
9.12.4.65
ciscoadaptive_security_appliance_software
9.12.4.67
ciscoadaptive_security_appliance_software
9.16.1
ciscoadaptive_security_appliance_software
9.16.1.28
ciscoadaptive_security_appliance_software
9.16.2
ciscoadaptive_security_appliance_software
9.16.2.3
ciscoadaptive_security_appliance_software
9.16.2.7
ciscoadaptive_security_appliance_software
9.16.2.11
ciscoadaptive_security_appliance_software
9.16.2.13
ciscoadaptive_security_appliance_software
9.16.2.14
ciscoadaptive_security_appliance_software
9.16.3
ciscoadaptive_security_appliance_software
9.16.3.3
ciscoadaptive_security_appliance_software
9.16.3.14
ciscoadaptive_security_appliance_software
9.16.3.15
ciscoadaptive_security_appliance_software
9.16.3.19
ciscoadaptive_security_appliance_software
9.16.3.23
ciscoadaptive_security_appliance_software
9.16.4
ciscoadaptive_security_appliance_software
9.16.4.9
ciscoadaptive_security_appliance_software
9.16.4.14
ciscoadaptive_security_appliance_software
9.16.4.19
ciscoadaptive_security_appliance_software
9.16.4.27
ciscoadaptive_security_appliance_software
9.16.4.38
ciscoadaptive_security_appliance_software
9.16.4.39
ciscoadaptive_security_appliance_software
9.16.4.42
ciscoadaptive_security_appliance_software
9.16.4.48
ciscoadaptive_security_appliance_software
9.16.4.55
ciscoadaptive_security_appliance_software
9.16.4.57
ciscoadaptive_security_appliance_software
9.16.4.61
ciscoadaptive_security_appliance_software
9.16.4.62
ciscoadaptive_security_appliance_software
9.16.4.67
ciscoadaptive_security_appliance_software
9.16.4.70
ciscoadaptive_security_appliance_software
9.16.4.71
ciscoadaptive_security_appliance_software
9.16.4.76
ciscoadaptive_security_appliance_software
9.16.4.82
ciscoadaptive_security_appliance_software
9.16.4.84
ciscoadaptive_security_appliance_software
9.16.4.85
ciscoadaptive_security_appliance_software
9.17.1
ciscoadaptive_security_appliance_software
9.17.1.7
ciscoadaptive_security_appliance_software
9.17.1.9
ciscoadaptive_security_appliance_software
9.17.1.10
ciscoadaptive_security_appliance_software
9.17.1.11
ciscoadaptive_security_appliance_software
9.17.1.13
ciscoadaptive_security_appliance_software
9.17.1.15
ciscoadaptive_security_appliance_software
9.17.1.20
ciscoadaptive_security_appliance_software
9.17.1.30
ciscoadaptive_security_appliance_software
9.17.1.33
ciscoadaptive_security_appliance_software
9.17.1.39
ciscoadaptive_security_appliance_software
9.17.1.45
ciscoadaptive_security_appliance_software
9.17.1.46
ciscoadaptive_security_appliance_software
9.18.1
ciscoadaptive_security_appliance_software
9.18.1.3
ciscoadaptive_security_appliance_software
9.18.2
ciscoadaptive_security_appliance_software
9.18.2.5
ciscoadaptive_security_appliance_software
9.18.2.7
ciscoadaptive_security_appliance_software
9.18.2.8
ciscoadaptive_security_appliance_software
9.18.3
ciscoadaptive_security_appliance_software
9.18.3.39
ciscoadaptive_security_appliance_software
9.18.3.46
ciscoadaptive_security_appliance_software
9.18.3.53
ciscoadaptive_security_appliance_software
9.18.3.55
ciscoadaptive_security_appliance_software
9.18.3.56
ciscoadaptive_security_appliance_software
9.18.4
ciscoadaptive_security_appliance_software
9.18.4.5
ciscoadaptive_security_appliance_software
9.18.4.8
ciscoadaptive_security_appliance_software
9.18.4.22
ciscoadaptive_security_appliance_software
9.18.4.24
ciscoadaptive_security_appliance_software
9.18.4.29
ciscoadaptive_security_appliance_software
9.18.4.34
ciscoadaptive_security_appliance_software
9.18.4.40
ciscoadaptive_security_appliance_software
9.18.4.47
ciscoadaptive_security_appliance_software
9.18.4.50
ciscoadaptive_security_appliance_software
9.18.4.52
ciscoadaptive_security_appliance_software
9.18.4.53
ciscoadaptive_security_appliance_software
9.18.4.57
ciscoadaptive_security_appliance_software
9.18.4.66
ciscoadaptive_security_appliance_software
9.18.4.67
ciscoadaptive_security_appliance_software
9.18.4.68
ciscoadaptive_security_appliance_software
9.19.1
ciscoadaptive_security_appliance_software
9.19.1.5
ciscoadaptive_security_appliance_software
9.19.1.9
ciscoadaptive_security_appliance_software
9.19.1.12
ciscoadaptive_security_appliance_software
9.19.1.18
ciscoadaptive_security_appliance_software
9.19.1.22
ciscoadaptive_security_appliance_software
9.19.1.24
ciscoadaptive_security_appliance_software
9.19.1.27
ciscoadaptive_security_appliance_software
9.19.1.28
ciscoadaptive_security_appliance_software
9.19.1.31
ciscoadaptive_security_appliance_software
9.19.1.37
ciscoadaptive_security_appliance_software
9.19.1.38
ciscoadaptive_security_appliance_software
9.19.1.42
ciscoadaptive_security_appliance_software
9.20.1
ciscoadaptive_security_appliance_software
9.20.1.5
ciscoadaptive_security_appliance_software
9.20.2
ciscoadaptive_security_appliance_software
9.20.2.10
ciscoadaptive_security_appliance_software
9.20.2.21
ciscoadaptive_security_appliance_software
9.20.2.22
ciscoadaptive_security_appliance_software
9.20.3
ciscoadaptive_security_appliance_software
9.20.3.4
ciscoadaptive_security_appliance_software
9.20.3.7
ciscoadaptive_security_appliance_software
9.20.3.9
ciscoadaptive_security_appliance_software
9.20.3.10
ciscoadaptive_security_appliance_software
9.20.3.13
ciscoadaptive_security_appliance_software
9.20.3.16
ciscoadaptive_security_appliance_software
9.20.3.20
ciscoadaptive_security_appliance_software
9.20.4
ciscoadaptive_security_appliance_software
9.20.4.7
ciscoadaptive_security_appliance_software
9.20.4.10
ciscoadaptive_security_appliance_software
9.20.4.14
ciscoadaptive_security_appliance_software
9.22.1.1
ciscoadaptive_security_appliance_software
9.22.1.2
ciscoadaptive_security_appliance_software
9.22.1.3
ciscoadaptive_security_appliance_software
9.22.1.6
ciscoadaptive_security_appliance_software
9.22.2
ciscoadaptive_security_appliance_software
9.22.2.4
ciscoadaptive_security_appliance_software
9.22.2.9
ciscoadaptive_security_appliance_software
9.22.2.13
ciscoadaptive_security_appliance_software
9.22.2.14
ciscoadaptive_security_appliance_software
9.23.1
ciscoadaptive_security_appliance_software
9.23.1.3
ciscoadaptive_security_appliance_software
9.23.1.7
ciscoadaptive_security_appliance_software
9.23.1.13
ciscoadaptive_security_appliance_software
9.23.1.19
ciscoadaptive_security_appliance_software
9.23.1.22
ciscofirepower_threat_defense_software
6.4.0
ciscofirepower_threat_defense_software
6.4.0.1
ciscofirepower_threat_defense_software
6.4.0.2
ciscofirepower_threat_defense_software
6.4.0.3
ciscofirepower_threat_defense_software
6.4.0.4
ciscofirepower_threat_defense_software
6.4.0.5
ciscofirepower_threat_defense_software
6.4.0.6
ciscofirepower_threat_defense_software
6.4.0.7
ciscofirepower_threat_defense_software
6.4.0.8
ciscofirepower_threat_defense_software
6.4.0.9
ciscofirepower_threat_defense_software
6.4.0.10
ciscofirepower_threat_defense_software
6.4.0.11
ciscofirepower_threat_defense_software
6.4.0.12
ciscofirepower_threat_defense_software
6.4.0.13
ciscofirepower_threat_defense_software
6.4.0.14
ciscofirepower_threat_defense_software
6.4.0.15
ciscofirepower_threat_defense_software
6.4.0.16
ciscofirepower_threat_defense_software
6.4.0.17
ciscofirepower_threat_defense_software
6.4.0.18
ciscofirepower_threat_defense_software
7.0.0
ciscofirepower_threat_defense_software
7.0.0.1
ciscofirepower_threat_defense_software
7.0.1
ciscofirepower_threat_defense_software
7.0.1.1
ciscofirepower_threat_defense_software
7.0.2
ciscofirepower_threat_defense_software
7.0.2.1
ciscofirepower_threat_defense_software
7.0.3
ciscofirepower_threat_defense_software
7.0.4
ciscofirepower_threat_defense_software
7.0.5
ciscofirepower_threat_defense_software
7.0.6
ciscofirepower_threat_defense_software
7.0.6.1
ciscofirepower_threat_defense_software
7.0.6.2
ciscofirepower_threat_defense_software
7.0.6.3
ciscofirepower_threat_defense_software
7.0.7
ciscofirepower_threat_defense_software
7.0.8
ciscofirepower_threat_defense_software
7.0.8.1
ciscofirepower_threat_defense_software
7.1.0
ciscofirepower_threat_defense_software
7.1.0.1
ciscofirepower_threat_defense_software
7.1.0.2
ciscofirepower_threat_defense_software
7.1.0.3
ciscofirepower_threat_defense_software
7.2.0
ciscofirepower_threat_defense_software
7.2.0.1
ciscofirepower_threat_defense_software
7.2.1
ciscofirepower_threat_defense_software
7.2.2
ciscofirepower_threat_defense_software
7.2.3
ciscofirepower_threat_defense_software
7.2.4
ciscofirepower_threat_defense_software
7.2.4.1
ciscofirepower_threat_defense_software
7.2.5
ciscofirepower_threat_defense_software
7.2.5.1
ciscofirepower_threat_defense_software
7.2.5.2
ciscofirepower_threat_defense_software
7.2.6
ciscofirepower_threat_defense_software
7.2.7
ciscofirepower_threat_defense_software
7.2.8
ciscofirepower_threat_defense_software
7.2.8.1
ciscofirepower_threat_defense_software
7.2.9
ciscofirepower_threat_defense_software
7.2.10
ciscofirepower_threat_defense_software
7.2.10.2
ciscofirepower_threat_defense_software
7.3.0
ciscofirepower_threat_defense_software
7.3.1
ciscofirepower_threat_defense_software
7.3.1.1
ciscofirepower_threat_defense_software
7.3.1.2
ciscofirepower_threat_defense_software
7.4.0
ciscofirepower_threat_defense_software
7.4.1
ciscofirepower_threat_defense_software
7.4.1.1
ciscofirepower_threat_defense_software
7.4.2
ciscofirepower_threat_defense_software
7.4.2.1
ciscofirepower_threat_defense_software
7.4.2.2
ciscofirepower_threat_defense_software
7.4.2.3
ciscofirepower_threat_defense_software
7.4.2.4
ciscofirepower_threat_defense_software
7.4.3
ciscofirepower_threat_defense_software
7.6.0
ciscofirepower_threat_defense_software
7.6.1
ciscofirepower_threat_defense_software
7.6.2
ciscofirepower_threat_defense_software
7.6.2.1
ciscofirepower_threat_defense_software
7.7.0
ciscofirepower_threat_defense_software
7.7.10
ciscofirepower_threat_defense_software
7.7.10.1
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-ospf-ZH8PhbSW