What is CVE-2023-32566?

CVE-2023-32566 is a critical-severity vulnerability in Ivanti Avalanche. CVSS score: 9.1/10. Published 2023-08-10.

How severe is CVE-2023-32566?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Vulnerability in Ivanti Avalanche

CVE-2023-32566

An attacker can send a specially crafted request which could lead to leakage of sensitive data or potentially a resource-based DoS attack. Fixed in version 6.4.1.

Published 2023-08-10 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H.

EPSS exploit prediction

EPSS: 0.024 (83.2th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 83rd percentile — 83.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.024 · newest: 0.024 · change: 0.000

Affected products

Ivanti Avalanche — versions 6.4.xxx

References

forums.ivanti.com/s/article/Avalanche-Vulnerabilities-Addressed-in-6-4-1 (Vendor Advisory)

Frequently asked questions

What is CVE-2023-32566?: CVE-2023-32566 is a critical-severity vulnerability in Ivanti Avalanche. CVSS score: 9.1/10. Published 2023-08-10.
How severe is CVE-2023-32566?: Critical severity. CVSS v3 base score is 9.1 out of 10.