CVE-2026-4374Disclosure(rti / connext_professional)

LOWCVSS 9.1 · CRITICAL

Signal is active with 3 mentions in latest observed window

Immediate actions

Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

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.*.

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0.0/ 10 priority

Sources & remediation

Vendor / third-party advisories

https://www.rti.com/vulnerabilities/#cve-2026-4374

Weakness type (CWE)

CWE-611

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

connext_professional

Threat summary

3 mentions across 1 observed day

What's happening

Technical details provided in 3 signals
Disclosure: 3 classified signals
3 total mentions across 1 day

Affected systems

Vendors

rti

Products

connext_professional

Deep dive

Activity timeline3 mentions / 1d

Signal classification1 categories

Disclosure

3100.0%

Referenced assets3 URLs

By indicator

Full discourse3 posts

CyberDudeBivash® | Global Cybersecurity Company@cyberbivash190d
Disclosure
🚨 CYBERDUDEBIVASH SENTINEL APEX ALERT 🚨 Threat: CVE-2026-4374 - Improper Restriction of XML External Entity Reference vulnerability in RTI Connext Professional (Routing Service,Observability Collector,Recording Service,Queueing Service,Cloud Discovery … https://ift.tt/wMEPGRv
Post summary
The alert announces the discovery of CVE-2026-4374, an XML External Entity vulnerability affecting several RTI Connext Professional services, without indicating active exploitation, PoC, or patch information.
0100037
281 followersView on X
CVEarity@CVEarity190d
Disclosure
⚡ New CVE Alert: CVE-2026-4374 📊 Severity: 8.8 🚨 Risk Level: High 🧩 Affects: Multiple / Unspecified Products Reference: https://nvd.nist.gov/vuln/detail/CVE-2026-4374 #CVE-2026-4374 #CVE #High #CyberSecurity #InfoSec https://t.co/vYqbfHl5EN
Post summary
The tweet announces a new high‑severity CVE (severity 8.8) affecting unspecified products and includes a reference to the NVD entry.
0000033
123 followersView on X
CVE@CVEnew190d
Disclosure
CVE-2026-4374 Improper Restriction of XML External Entity Reference vulnerability in RTI Connext Professional (Routing Service,Observability Collector,Recording Service,Queueing Serv… https://www.cve.org/CVERecord?id=CVE-2026-4374
Post summary
The post announces CVE-2026-4374, an XML External Entity (XEE) vulnerability in various RTI Connext Professional components, and directs readers to the CVE record for details.
00000107
56.9K followersView on X

CPE platform detail1 entries

Part:

Vendor:

Product:

Version:

Target SW:

Target HW:

1 of 1 entries

Part	Vendor	Product	Version	Target SW	Target HW
App	rti	connext_professional	-	-	-

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