CVE-2023-30800 | BDVDB-2026-211446 Detail

MikroTikRouterOS

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.

Impact#

CAPEC-123 Buffer Manipulation

Weaknesses#

CWE-787 Out-of-bounds Write

References#

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

Exploit#

No public exploit known

History#

Version 12023-09-07Record published in the CVE List.
Version 22025-11-21Most recent update recorded in the CVE List.

Published

Published: 2023-09-07
Last modified: 2025-11-21

Vendor information

Vendor: MikroTik
Product: RouterOS

All MikroTik vulnerabilities

Score

7.5 High

EPSS

1.6%, Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 77.2.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Memory Corruption

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
Not stated
Fixed
6.49.10
Vulnerable
6.49.9
Fixed
Not stated
Vulnerable
6.48.8
Fixed
Not stated

Scoring System

CVSS v4.0

Not available

CVSS v3.1

7.5 High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Privileges Required	None
User Interaction	None
Scope	Unchanged
Confidentiality	None
Integrity	None
Availability	High

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).