CVE-2026-84411

Published: Ott 03, 2026 Last Modified: Ott 03, 2026
ExploitDB:
Other exploit source:
Google Dorks:
CRITICAL 9,3
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Confidentiality: N/A
Integrity: N/A
Availability: N/A
CRITICAL 9,8
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high

Description

AI Translation Available

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.

191

Integer Underflow (Wrap or Wraparound)

Draft
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Availability Integrity Confidentiality Access Control
Potential Impacts:
Dos: Crash, Exit, Or Restart Dos: Resource Consumption (Cpu) Dos: Resource Consumption (Memory) Dos: Instability Modify Memory Execute Unauthorized Code Or Commands Bypass Protection Mechanism
Applicable Platforms
Languages: C, C++, Java, C#
View CWE Details
https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/…
https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-2…
https://mikrotik.com/download
https://mikrotik.com/download
https://www.cisa.gov/news-events/ics-advisories/icsa-26-272…
https://www.cisa.gov/news-events/ics-advisories/icsa-26-272-06