CVE-2023-30800

MikroTik RouterOS Web Interface Heap Corruption

State: Published
Severity: 7.5 High
Published: Sep 7, 2023
Updated: Nov 21, 2025
Reserved: Apr 18, 2023

Description

The web server used by MikroTik RouterOS version 6 is affected by a heap memory corruption issue. A remote and unauthenticated attacker can corrupt the server's heap memory by sending a crafted HTTP request. As a result, the web interface crashes and is immediately restarted. The issue was fixed in RouterOS 6.49.10 stable. RouterOS version 7 is not affected.

Scores

CVSS	Score	Vector	Source
3.1	7.5 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	VulnCheck

Weaknesses

CWE-787 Out-of-bounds Write

Affected Products

Product	Versions
RouterOSMikroTik	6.49.10Not affected 6.49.9Affected 6.48.8Affected

References

https://vulncheck.com/advisories/mikrotik-jsproxy-dos

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