CVE-2023-30800

MikroTik RouterOS Web Interface Heap Corruption

HIGH
7.5
CVSS Score
Published: September 7, 2023 at 03:43 PM UTC
Updated: June 17, 2026 at 05:55 AM UTC
1 product affected across 1 vendorRouterOS

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Severity
HIGH7.5
Exploit prediction
EPSS 2%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

6.0 ≤ v < 6.49.106.48.86.49.9
Vendor states this is fixed in 6.49.10 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

SSVC — Action Prioritization

SSVCPoCAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHVulnCheck
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-787

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