Answer in brief
CVE-2026-86060 records a Critical severity (CVSS 9.8) vulnerability in SSH session privilege manipulation via a crafted username in Mikrotik RouterOS. The current sources mark it as known exploited. The current feed maps Mikrotik/RouterOS (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 9.8. Known-exploitation status makes exposure review time-sensitive. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Mikrotik/RouterOS (generic). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:mikrotik:routeros:*:*:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Mikrotik/RouterOSgeneric | >=7.24 <7.24.2 || >=7.0.0 <7.23.4 || >=6.0.0 <6.49.21 | 7.24.2, 7.23.4, 6.49.21 |
Published upstream
Sep 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 13, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 5, 2026
Added to CISA KEV
Sep 10, 2026
Evidence: source:kev:kev:kev:recordRouterOS 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)
Quoted source text, attributed separately from HOL analysis.