XXE denial of service in Ivanti Connect Secure / Policy Secure / ZTA Gateway / Neurons for Secure Access
CVE-2025-5466 is an XML External Entity (XXE) vulnerability affecting 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. The issue is described as an XXE flaw mapped to CWE-776 and can be exploited by a remote authenticated attacker with administrative privileges to trigger a denial-of-service condition. The provided information does not identify the specific vulnerable function or parser component.
Are you exposed to this one?
Mallory correlates every CVE against your assets, your vendors, and active adversary campaigns. Know which vulnerabilities matter for you, not just which ones are loud.
Impact, mitigation & remediation
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
Impact
What an attacker gets, and what they’ve been doing with it.
Mitigation
If you can’t patch tonight, do this now.
Remediation
Patch, then assume compromise.
Exploits
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Affected products & vendors
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
Recent activity
4 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A medium-severity XML External Entity (XXE) vulnerability in Ivanti products that requires administrative privileges and can cause denial-of-service.
An XML External Entity (XXE) vulnerability that allows a remote authenticated attacker with admin privileges to trigger a denial of service in multiple Ivanti products.
The version that knows your environment.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.