XXE in Ivanti Connect Secure
CVE-2025-5466
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
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.007 (51.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 51.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.007 · change: +0.000
Affected products
- Ivanti Connect Secure — versions 22.7R2.8, 22.8R2
- Ivanti Connect Secure — versions 22.7
- Ivanti Neurons For Secure Access — versions 22.8R1.4 (Fix deployed on 02-Aug-2025)
- Ivanti Neurons For Secure Access — versions 22.8
- Ivanti Policy Secure — versions 22.7R1.5
- Ivanti Policy Secure — versions 22.7
- Ivanti Zero Trust Access Gateway — versions 22.8
- Ivanti Zta Gateway — versions 22.8R2.3-723
Weakness classification (CWE)
Public proof-of-concept exploits
References
- 3c1d8aa1-5a33-4ea4-8992-aadd6440af75 (Vendor Advisory)
Frequently asked questions
- What is CVE-2025-5466?
- CVE-2025-5466 is a medium-severity vulnerability in Ivanti Connect Secure, classified under Improper Restriction of Recursive Entity References in DTDs (XML Entity Expansion). CVSS score: 4.9/10. Published 2025-08-12.
- How severe is CVE-2025-5466?
- Medium severity. CVSS v3 base score is 4.9 out of 10.
- Is CVE-2025-5466 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.