CVE-2023-20051
5.8 · MEDIUMOverview
CVE-2023-20051 is a medium-severity vulnerability affecting cisco packet_data_network_gateway. It was published on April 5, 2023 and has a CVSS 3.1 base score of 5.8 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 5.8, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
A vulnerability in the Vector Packet Processor (VPP) of Cisco Packet Data Network Gateway (PGW) could allow an unauthenticated, remote attacker to stop ICMP traffic from being processed over an IPsec connection. This vulnerability is due to the VPP improperly handling a malformed packet. An attacker could exploit this vulnerability by sending a malformed Encapsulating Security Payload (ESP) packet over an IPsec connection. A successful exploit could allow the attacker to stop ICMP traffic over an IPsec connection and cause a denial of service (DoS).
Remediation
Check the references section for vendor advisories and patches from cisco. Update packet_data_network_gateway to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| cisco | packet_data_network_gateway | >= 0, < 21.28.0 | Affected |
Frequently Asked Questions
What is CVE-2023-20051?
CVE-2023-20051 is a medium-severity vulnerability affecting cisco packet_data_network_gateway. It was published on April 5, 2023 and has a CVSS 3.1 base score of 5.8 (MEDIUM).
How severe is CVE-2023-20051?
This vulnerability has a CVSS 3.1 base score of 5.8, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2023-20051?
Check the references section for vendor advisories and patches from cisco. Update packet_data_network_gateway to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2023-20051?
CyberStrike's AI-powered security agents can automatically detect CVE-2023-20051 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
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