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HIGH · 8.6

CVE-2022-20823

A vulnerability in the OSPF version 3 (OSPFv3) feature of Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This ...

Vulnerability Description

A vulnerability in the OSPF version 3 (OSPFv3) feature of Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to incomplete input validation of specific OSPFv3 packets. An attacker could exploit this vulnerability by sending a malicious OSPFv3 link-state advertisement (LSA) to an affected device. A successful exploit could allow the attacker to cause the OSPFv3 process to crash and restart multiple times, causing the affected device to reload and resulting in a DoS condition. Note: The OSPFv3 feature is disabled by default. To exploit this vulnerability, an attacker must be able to establish a full OSPFv3 neighbor state with an affected device. For more information about exploitation conditions, see the Details section of this advisory.

CVSS Score

8.6

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH

Affected Products

VendorProductVersions
CiscoNexus 3016 Firmware-
CiscoNexus 3016-
CiscoNexus 3016Q Firmware-
CiscoNexus 3016Q-
CiscoNexus 3048 Firmware-
CiscoNexus 3048-
CiscoNexus 3064 Firmware-
CiscoNexus 3064-
CiscoNexus 3064-32T Firmware-
CiscoNexus 3064-32T-
CiscoNexus 3064-T Firmware-
CiscoNexus 3064-T-
CiscoNexus 3064-X Firmware-
CiscoNexus 3064-X-
CiscoNexus 3064T Firmware-
CiscoNexus 3064T-
CiscoNexus 3064X Firmware-
CiscoNexus 3064X-
CiscoNexus 3100 Firmware-
CiscoNexus 3100-

Related Weaknesses (CWE)

CWE-126CWE-125

References

FAQ

What is CVE-2022-20823?

CVE-2022-20823 is a vulnerability with a CVSS score of 8.6 (HIGH). A vulnerability in the OSPF version 3 (OSPFv3) feature of Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This ...

How severe is CVE-2022-20823?

CVE-2022-20823 has been rated HIGH with a CVSS base score of 8.6/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2022-20823?

Check the references section above for vendor advisories and patch information. Affected products include: Cisco Nexus 3016 Firmware, Cisco Nexus 3016, Cisco Nexus 3016Q Firmware, Cisco Nexus 3016Q, Cisco Nexus 3048 Firmware.