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CVE-2026-86060

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This is a free service offered by Red Hot Cyber to the community. It allows you to view, on a single page, information about a single CVE from the National Vulnerability Database (NVD) and the National Institute of Standards and Technology (NIST) of the United States of America, the Forum of Incident Response and Security Teams (FIRST) regarding the EPSS score and percentile, data from the KEV catalog of the Cybersecurity and Infrastructure Security Agency (CISA), as well as selected resources from Red Hot Cyber and other international sources.

National Vulnerability Database Information

Description: 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)

CVSS Base Score: 9.8 (v3.1)

The CVSS Base Score is a score from 0 to 10 that represents the intrinsic severity of a vulnerability. A higher score indicates greater severity.

Value
0.02.55.07.510.0
Published on: 09/05/2026 20:17:18
Last modified: 09/11/2026 12:52:16
NIST: CVE source from the National Vulnerability Database (NVD)

CVSS Metrics Details

  • Base Severity: CRITICAL
  • Vector String: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • Attack Vector: NETWORK
  • Attack Complexity: LOW
  • Privileges Required: NONE
  • User Interaction: NONE
  • Scope: UNCHANGED
  • Confidentiality Impact: HIGH
  • Integrity Impact: HIGH
  • Availability Impact: HIGH

Common Weakness Enumeration (CWE)

Database CWE: v4.18

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

The product constructs a string for a command to be executed by a separate component in another control sphere, but it does not properly delimit the intended arguments, options, or switches within that command string.

Fonte: MITRE CWE


FIRST Information

EPSS Score: 0.0639

The EPSS (Exploit Prediction Scoring System) is a score from 0 to 1 that indicates the probability that a vulnerability will be exploited in the real world in the next 30 days. A higher value indicates a greater likelihood of exploitation.

Value
0.00.250.50.751.0

Percentile: 0.9347

The Percentile indicates how much higher this vulnerability's EPSS score is compared to all other vulnerabilities in the EPSS database. For example, a percentile of 0.90 (90%) means that 90% of vulnerabilities have an EPSS score equal to or lower than the current one.

Value
0.00.250.50.751.0

*Data updated as of: 2026-10-04


CISA Information (Known Exploited Vulnerabilities)

The CISA KEV Catalog lists vulnerabilities that have been actively exploited in the real world. If a CVE is present in this catalog, it indicates that the threat is immediate and mitigation should be a top priority.

CVE CVE-2026-86060 IS PRESENT in the CISA KEV Catalog!

  • Vulnerability Name: MikroTik RouterOS Improper Neutralization of Argument Delimiters in a Command Vulnerability
  • Short Description: MikroTik RouterOS contains an improper neutralization of argument delimiters in a command vulnerability which allows an attacker to change the trusted RouterOS policy mask, leading to privilege escalation.
  • Date Added to KEV: 09/10/2026
  • Vendor/Product: MikroTik / RouterOS
  • Required Action: 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.
  • Due Date: 09/13/2026

Articles published on Red Hot Cyber


NVD References

Exploit PoC from GitHub

  • digiprosec/MicroTrick: cve-2026-86060 PoC
  • tc4dy/CVE-2026-67279-86060-Toolkit: CVE-2026-67279 + CVE-2026-86060 – MikroTrick MikroTik RouterOS SSH Pre-Auth Takeover (CVSS 9.2) | Red/Blue Team suite. 2 tools: Full Exploit (rekey bypass, fd-2 policy swap, full-admin shell, plant, mass scan, SOCKS5/Tor, stealth) & SafeDetect (banner/version audit, IoC guidance, JSON/CSV/HTML). Use Ethically & Safety only.
  • gagaltotal/CVE-2026-mikrotik-poc: CVE-2026-86060 - CVE-2026-67279 - CVE-2026-67276 RouterOS SSH
  • HackSpeak/CVE-2026-67279: MikroTrick (MikroTik RouterOS SSH takeover chain) PoC mirror - CVE-2026-67279 + CVE-2026-86060 (+67276); for authorized lab testing
  • bahirul/cve-2026-86060: Mikrotik CVE-2026-86060 Score 9.2 Critical