What is CVE-2023-20083?

CVE-2023-20083 is a high-severity vulnerability in Cisco Firepower Threat Defense Software, classified under Loop with Unreachable Exit Condition (Infinite Loop). CVSS score: 8.6/10. Published 2023-11-01.

How severe is CVE-2023-20083?

High severity. CVSS v3 base score is 8.6 out of 10.

Vulnerability in Cisco Firepower Threat Defense Software

CVE-2023-20083

A vulnerability in ICMPv6 inspection when configured with the Snort 2 detection engine for Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause the CPU of an affected device to spike to 100…

EPSS: 0.007 (48.2th 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

Cisco Firepower Threat Defense Software — versions 6.2.3, 6.2.3.1, 6.2.3.2
Cisco Firepower_threat_defense

Weakness classification (CWE)

CWE-835 — Loop with Unreachable Exit Condition (Infinite Loop)

References

psirt@cisco.com (Vendor Advisory)

Frequently asked questions

What is CVE-2023-20083?: CVE-2023-20083 is a high-severity vulnerability in Cisco Firepower Threat Defense Software, classified under Loop with Unreachable Exit Condition (Infinite Loop). CVSS score: 8.6/10. Published 2023-11-01.
How severe is CVE-2023-20083?: High severity. CVSS v3 base score is 8.6 out of 10.