CVE-2026-67279

Katalog CVE

CVSS 6.5 · Medium KEV · sudah dieksploitasi EPSS 1,0%

Kerentanan Improper Enforcement of Behavioral Workflow pada mikrotik routeros. Skor CVSS 3.1 6.5 (Medium) menurut NVD. Masuk katalog KEV CISA pada 25 September 2026, artinya sudah terbukti dieksploitasi.

Deskripsi (NVD)

RouterOS SSH enters the connection protocol after a client-requested rekey even though user authentication was never attempted, allowing an unauthenticated client to open a session channel and send an exec request. On affected builds the server dispatches the command, enabling unauthenticated creation, overwrite, and reconstruction of files in the RouterOS managed file namespace, including support files containing configuration and diagnostic data.This issue was fixed in versions: 6.49.21 (Long-term), 7.23.4 (Long-term) and 7.24.2 (Stable)

Advisory KUTIM-CSIRT

• Peringatan Keamanan: Tiga Kerentanan SSH dan btest MikroTik RouterOS Dieksploitasi Aktif, RouterOS v6 Ikut Terdampak 26 Sep 2026

Rincian

Terbit di NVD

5 September 2026

Terakhir diubah

26 September 2026

Status NVD

Analyzed

CVSS 3.1

6.5 (Medium), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-841: Improper Enforcement of Behavioral Workflow

EPSS (30 hari)

1,0% peluang dieksploitasi; lebih tinggi dari 62,6% CVE lain

Known Exploited Vulnerabilities (CISA)

Nama

Mikrotik RouterOS Improper Enforcement of Behavioral Workflow Vulnerability

Masuk KEV

25 September 2026

Tenggat CISA

28 September 2026 (untuk instansi federal AS)

Ransomware

Belum tercatat

Tindakan wajib

Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://mikrotik.com/supportsec/september-2026-vulnerability/ advisory vendor
• https://cert.pl/en/posts/2026/09/vulnerabilities-in-mikrotik-routeros-actively-exploited/ mitigasi · advisory pihak ketiga
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-67279 pemerintah AS
• https://cert.pl/en/posts/2026/09/mikrotik-routeros-cve advisory pihak ketiga
• https://npratley.net/reversing-mikrotiks-silent-patch-the-routeros-7-23-4-fix-they-wouldnt-explain/ exploit · advisory pihak ketiga
• https://bishopfox.com/blog/mikrotrick-inside-the-routeros-takeover-chain advisory pihak ketiga
• https://forum.mikrotik.com/t/6-49-21-long-term-is-released/272802 release notes
• https://forum.mikrotik.com/t/7-23-4-long-term-is-released/272801 release notes
• https://forum.mikrotik.com/t/7-24-2-stable-is-released/272800 release notes