Administrator-triggered denial of service via XML expansion
Published Aug 12, 2025 · Updated Aug 12, 2025
XML entity expansion in Ivanti Connect Secure and related secure-access products allows remote authenticated users to trigger a denial of service. Ivanti has not published the specific XML parser, input path, or entity-expansion operation that accepts attacker-controlled XML. Administrative privileges are required; successful exploitation interrupts the affected service, with no reported data disclosure or modification.
Summary
What happened
XML entity expansion in Ivanti Connect Secure and related secure-access products allows remote authenticated users to trigger a denial of service. Ivanti has not published the specific XML parser, input path, or entity-expansion operation that accepts attacker-controlled XML. Administrative privileges are required; successful exploitation interrupts the affected service, with no reported data disclosure or modification.
The record
- CVE
- CVE-2025-5466
- Published
- Aug 12, 2025
- Updated
- Aug 12, 2025
- Vendor
- Ivanti
- Product
- Connect Secure
- Classifications
- CWE-776, T1499
- Attack vector
- network
- Privileges
- admin
Timeline
How it unfolded
- Aug 12, 2025CVE publishedPublication date reported by the CVE source.
- Aug 12, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Affected versions are unavailable in this record. Check the vendor advisory for version and patch details.
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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