Use After Free in Cisco 1000_integrated_services_router

CVE-2023-20027

A vulnerability in the implementation of the IPv4 Virtual Fragmentation Reassembly (VFR) feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. T…

Vulnerability class: Use-After-Free

EPSS: 0.010 (57.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2023-20027?
CVE-2023-20027 is a high-severity vulnerability in Cisco 1000_integrated_services_router, classified under Use After Free. CVSS score: 8.6/10. Published 2023-03-23.
How severe is CVE-2023-20027?
High severity. CVSS v3 base score is 8.6 out of 10.