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CVE-2026-84411 Details

Description

The web management service in affected RouterOS versions contains an integer underflow in its HTTP request body handling that is reachable before authentication. This can be leveraged by an unauthenticated network attacker to achieve arbitrary code execution as root, or to cause a denial of service, using a single crafted request.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:9.8 CRITICALVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-272-06.json	[email protected]
https://mikrotik.com/download	[email protected]
https://www.cisa.gov/news-events/ics-advisories/icsa-26-272-06	[email protected]

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-191	Integer Underflow (Wrap or Wraparound)	[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

1 change record found show changes