CVE-2026-4374Critical· 9.1▾ MidnightImproper Restriction of XML External Entity Reference vulnerability in RTI Connext Professional (Recording Service,Routing Service,Queueing Service,Cloud Discovery Service,Observability Collector) allows Serialized Data External Linking,…
▾ Midnight zone — Critical, or high with PoC / in-the-wild
impact 50.1 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
0.2%
8.8 → 9.1
high → critical
Improper Restriction of XML External Entity Reference vulnerability in RTI Connext Professional (Recording Service,Routing Service,Queueing Service,Cloud Discovery Service,Observability Collector) allows Serialized Data External Linking, Data Serialization External Entities Blowup. This issue affects Connext Professional: from 7.4.0 before 7.7.0, from 7.0.0 before 7.3.1.1, from 6.1.0 before 6.1.2.34, from 6.0.0 before 6.0., from 5.3.0 before 5.3..
connext_professional >= 5.3.0, <= 5.3.1.45connext_professional >= 6.0.0, <= 6.0.1.40connext_professional >= 6.1.0, <= 6.1.2.27connext_professional >= 7.0.0, < 7.3.1.1connext_professional >= 7.4.0, < 7.7.0Upgrade past the affected range:
connext_professional 7.7.0Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
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