Vulnerability Intelligence Report
UnrealIRCd Improper Neutralization of Delimiters Vulnerability
CVE-2026-114713
The labeled-response module in UnrealIRCd 6.0.0 before 6.2.7.1 does not escape the IRCv3 "label" message tag when echoing it into replies, which allows any user on a network with two or more linked servers to inject server-to-server commands that are executed with server authority.
CISA KEV
SSVC: Active Exploitation
Automatable
CVSS Base Score
8.6
HIGH
Exploitability:3.9
Impact Score:4.0
EPSS Probability:0.30%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
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Authentication
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Weaponization
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SSVC Action
—
Weaknesses (CWE)
CWE-140 ↗CWE-140 Improper Neutralization of Delimiters
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| UnrealIRCd | UnrealIRCd | 0 < 6.2.7.1 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | MITRE Corporation · N/A · USA |
| Reserved | 2026-10-22T00:56:41 |
| Published | 2026-11-08T02:31:48 |
| Last Updated | 2026-11-13T19:25:14 |
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