File disclosure and service denial via XXE
Published Apr 1, 2026 · Updated Apr 1, 2026
XXE in five RTI Connext Professional services allows local users to read local files or interrupt service through malicious XML. The services' configuration parsers resolve attacker-controlled external entities and expand entity references without restriction. Exploitation requires control of an XML configuration document loaded at application startup; no ability to modify data is reported.
Summary
What happened
XXE in five RTI Connext Professional services allows local users to read local files or interrupt service through malicious XML. The services' configuration parsers resolve attacker-controlled external entities and expand entity references without restriction. Exploitation requires control of an XML configuration document loaded at application startup; no ability to modify data is reported.
The record
- CVE
- CVE-2026-4374
- Published
- Apr 1, 2026
- Updated
- Apr 1, 2026
- Vendor
- Real-Time Innovations
- Product
- Connext Professional
- Classifications
- CWE-611, CAPEC-221, CAPEC-201, T1499, T1005
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Apr 1, 2026CVE publishedPublication date reported by the CVE source.
- Apr 1, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=5.3.0 <5.3.*
- Affected versionversion=6.0.0 <6.0.*
- Affected versionversion=6.1.0 <6.1.*
- Affected versionversion=7.1.0 <7.3.1.1
- Affected versionversion=7.4.0 <7.7.0
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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