CVE-2026-86060

Katalog CVE

CVSS 9.8 · Critical KEV · sudah dieksploitasi EPSS 6,4%

Kerentanan Improper Neutralization of Argument Delimiters in a Command ('Argument Injection') pada mikrotik routeros. Skor CVSS 3.1 9.8 (Critical) menurut NVD. Masuk katalog KEV CISA pada 10 September 2026, artinya sudah terbukti dieksploitasi.

Deskripsi (NVD)

RouterOS contains an argument-handling flaw in the SSH login path involving usernames that begin with a prohibited character, allowing for the trusted RouterOS policy mask to be changed, leading to privilege escalation. Exploitation requires an unauthenticated SSH session to reach the RouterOS login helper.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

11 September 2026

Status NVD

Analyzed

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-88: Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')

EPSS (30 hari)

6,4% peluang dieksploitasi; lebih tinggi dari 93,5% CVE lain

Known Exploited Vulnerabilities (CISA)

Nama

MikroTik RouterOS Improper Neutralization of Argument Delimiters in a Command Vulnerability

Masuk KEV

10 September 2026

Tenggat CISA

13 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-2026-86060 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://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