CVE-2025-5466: ivanti connect_secure XML Entity Expansion
CVSS: 4.9v3.1MediumAnalyzed
Published 12-08-2025Last modified 12-08-2025
Vulnerability summary
CVE-2025-5466 is a medium (CVSS 4.9) XML Entity Expansion vulnerability in ivanti connect_secure. EPSS estimates a 0.68% chance of exploitation in the next 30 days, higher than 51.3% of scored vulnerabilities.
CVSS score
4.9/10
010
Medium · v3.1 (CVE.org)EPSS score
0.68%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 12-08-2025PublishedVulnerability first disclosed.
- 12-08-2025Last modifiedVulnerability information updated.
Description
XEE in Ivanti Connect Secure before 22.7R2.8 or 22.8R2, Ivanti Policy Secure before 22.7R1.5, Ivanti ZTA Gateway before 22.8R2.3-723 and Ivanti Neurons for Secure Access before 22.8R1.4 (Fix deployed on 02-Aug-2025) allows a remote authenticated attacker with admin privileges to trigger a denial of service
CVSS metrics
2 scores · 2 sources · 1 versionMedium 4.9Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:HSourcesAll 2 agree
- NVDNIST4.9MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.68%
Chance of exploitation in the next 30 days
Percentile
51%
Versus all other CVEs
30-day change
0.00 pp
From 0.68% on 20-09-2026
20-09-202620-10-2026
EPSS score0.68%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ivanti4 products
- connect_secure< 22.7 | 22.7 | 22.7:r1 | 22.7:r1.1 | 22.7:r1.2 | 22.7:r1.3 | 22.7:r1.4 | 22.7:r1.5 | 22.7:r2 | 22.7:r2.1 | 22.7:r2.2 | 22.7:r2.3 | 22.7:r2.4 | 22.7:r2.5 | 22.7:r2.6 | 22.7:r2.7
- neurons_for_secure_access< 22.8 | 22.8:r1 | 22.8:r1.1 | 22.8:r1.2 | 22.8:r1.3
- policy_secure< 22.7 | 22.7 | 22.7:r1 | 22.7:r1.1 | 22.7:r1.2 | 22.7:r1.3 | 22.7:r1.4
- zero_trust_access_gateway22.8:r2.2
1 vendor · 4 products
References
1 links- forums.ivanti.com/s/…Vendor Advisory