CVE-2026-86060

Q: How do I fix CVE-2026-86060?

Upgrade routeros to 7.24.2 or later.

Q: Is CVE-2026-86060 being actively exploited?

Yes. CVE-2026-86060 is listed in the CISA Known Exploited Vulnerabilities catalog, which means exploitation has been observed in the wild. US federal agencies were required to remediate it by 2026-09-13. Treat it as a priority whatever its CVSS score says.

Q: How severe is CVE-2026-86060?

CVE-2026-86060 has a CVSS v3 base score of 9.8, rated critical. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

Q: What does CVE-2026-86060 affect?

Published advisories record a fix for routeros (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

CRITICALCISA KEV

9.8

CVSS v3

NVD

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)

CWE-88

How to fix

Remediation Available

routerosNVD

Affected:>= 7.24, < 7.24.2Fixed in:7.24.2CVE-2026-86060derived from NVD

Affected:>= 6.0, < 6.49.21Fixed in:6.49.21CVE-2026-86060derived from NVD

Affected:>= 7.0, < 7.23.4Fixed in:7.23.4CVE-2026-86060derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

1.06%probability of exploitation in 30 days

63rdpercentile

Moderate risk: more likely to be exploited than 63% of all known CVEs.

Known Exploited Vulnerability (CISA KEV)

Remediation due: 2026-09-13

References

Exploit1

npratley.net

Vendor Advisory1

mikrotik.com

Mitigation1

cert.pl

Third-Party Advisory1

cert.pl

Government Resource1

cisa.gov

Release Notes3

Related Vulnerabilities

Other CWE-88 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2016-10033	Critical	9.8	100%	KEV	Fix
CVE-2022-36804	High	8.8	99%	KEV	Fix
CVE-2007-0882	High	10.0	98%	-	-
CVE-2026-24061	Critical	9.8	98%	KEV	Fix
CVE-2018-17456	Critical	9.8	97%	-	Fix
CVE-2018-19518	High	7.5	95%	-	Fix

Common questions

How do I fix CVE-2026-86060?

Upgrade routeros to 7.24.2 or later.

Is CVE-2026-86060 being actively exploited?

Yes. CVE-2026-86060 is listed in the CISA Known Exploited Vulnerabilities catalog, which means exploitation has been observed in the wild. US federal agencies were required to remediate it by 2026-09-13. Treat it as a priority whatever its CVSS score says.

How severe is CVE-2026-86060?

CVE-2026-86060 has a CVSS v3 base score of 9.8, rated critical. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2026-86060 affect?

Published advisories record a fix for routeros (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

Embed a live status badge for CVE-2026-86060

Markdown

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This vulnerability is actively exploited in the wild

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-09-11.