Which versions of RocketChat are affected by CVE-2025-5892?

Organizations using RocketChat should be aware of moderate risk from CVE-2025-5892, a resource exhaustion vulnerability rated CVSS 4.3. Service availability could be impacted.

Is there a public PoC exploit available for CVE-2025-5892?

Yes, a public proof-of-concept exploit is available for CVE-2025-5892. Prioritise patching immediately. EPSS: 0.2%.

How to fix or mitigate CVE-2025-5892?

Within 30 days: Identify affected systems running RocketChat and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

RocketChat CVE-2025-5892

Q: What is the CVSS score of CVE-2025-5892?

CVE-2025-5892 has a CVSS 4.0 base score of 2.1 (Low). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X. EPSS exploitation probability: 0.2%.

EUVD-2025-17566 LOW

Uncontrolled Resource Consumption (CWE-400)

2025-06-09 cna@vuldb.com

Denial Of Service

2.1

CVSS 4.0 · NVD

Severity by source

NVD PRIMARY

2.1 LOW

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Lifecycle Timeline

Severity Changed

Apr 29, 2026 - 01:11 NVD

MEDIUM LOW

CVSS changed

Apr 29, 2026 - 01:11 NVD

4.3 (MEDIUM) 2.1 (LOW)

EUVD ID Assigned

Mar 14, 2026 - 19:21 euvd

EUVD-2025-17566

Analysis Generated

Mar 14, 2026 - 19:21 vuln.today

PoC Detected

Jul 10, 2025 - 16:24 vuln.today

Public exploit code

CVE Published

Jun 09, 2025 - 20:15 nvd

MEDIUM 4.3

DescriptionCVE.org

A vulnerability, which was classified as problematic, has been found in RocketChat up to 7.6.1. This issue affects the function parseMessage of the file /apps/meteor/app/irc/server/servers/RFC2813/parseMessage.js. The manipulation of the argument line leads to inefficient regular expression complexity. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.

Analysis

CVE-2025-5892 vulnerability details – vuln.today

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