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TI-2017-14215 Aliases CVE-2017-20149GHSA-qjvr-7h9f-927v

The Mikrotik RouterOS web server allows memory corruption in releases before Stable…

Priority HIGH 82CWE-787Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

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

Summary

The Mikrotik RouterOS web server allows memory corruption in releases before Stable 6.38.5 and Long-term 6.37.5, aka Chimay-Red. A remote and unauthenticated user can trigger the vulnerability by sending a crafted HTTP request. An attacker can use this vulnerability to execute arbitrary code on the affected system, as exploited in the wild in mid-2017 and later.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.02528 84th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Total

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

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:mikrotik:routeros:*:*:*:*:ltr:*:*:*before 6.37.5VulnerableMikroTik
cpe:2.3:o:mikrotik:routeros:*:*:*:*:*:*:*:*6.38 to before 6.38.5VulnerableMikroTik
  • cpe:2.3:o:mikrotik:routeros:*:*:*:*:ltr:*:*:* Versions before 6.37.5 Vulnerable ·MikroTik
  • cpe:2.3:o:mikrotik:routeros:*:*:*:*:*:*:*:* Versions 6.38 to before 6.38.5 Vulnerable ·MikroTik

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2017-20149
  2. 2026-10-03 Alias added: GHSA-qjvr-7h9f-927v

References

Exploit 2

  • 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