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TI-2023-14610 Aliases CVE-2023-30800GHSA-pmjf-334r-5j9j

MikroTik RouterOS Web Interface Heap Corruption

Priority HIGH 72CWE-787Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.01687 77th percentileScored 2026-11-07
Fix Fixed RouterOS (MikroTik): 6.49.10

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
MikroTikRouterOS6.49.9 and later; 6.48.8 and later6.49.10Patch availableCNA
  • RouterOS VendorMikroTik Affected 6.49.9 and later; 6.48.8 and later Fixed in 6.49.10 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:o:mikrotik:routeros:*:*:*:*:-:*:*:*6.0 to before 6.49.10VulnerableMikroTik
  • cpe:2.3:o:mikrotik:routeros:*:*:*:*:-:*:*:* Versions 6.0 to before 6.49.10 Vulnerable ·MikroTik

Remediation

  • Fix · CNA RouterOS (MikroTik) Fixed in 6.49.10

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-30800
  2. 2026-10-03 Alias added: GHSA-pmjf-334r-5j9j

References

—

  • TI-2018-05369 A buffer overflow was found in the MikroTik RouterOS SMB service when processing NetBIOS… KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-58872 SSH session privilege manipulation via a crafted username in Mikrotik RouterOS KEVCVSS 4.0CRITICAL 9.2
  • TI-2018-10669 MikroTik RouterOS through 6.42 allows unauthenticated remote attackers to read arbitrary… KEVCVSS 3.1CRITICAL 9.1
  • TI-2026-47574 Kernel memory disclosure and denial of service in MikroTik RouterOS btest service KEVCVSS 4.0HIGH 8.8
  • TI-2026-47576 SSH Pre-Authentication Rekey State Bypass in MikroTik RouterOS KEVCVSS 4.0MEDIUM 6.9
  • TI-2022-22302 Out-of-bounds read in MicroTik RouterOS CVSS 3.1CRITICAL 9.8
See all 87 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences