MikroTik RouterOS Stack-Based Buffer Overflow Vulnerability
In MikroTik RouterOS, a stack-based buffer overflow occurs when processing NetBIOS session request messages. Remote attackers with access to the service can exploit this vulnerability and gain code execution on the system.
- Vendor
- MikroTik
- Product
- RouterOS
- CVSS
- 9.8
- EPSS (exploit probability)
- 60.8%
- Status
- kev
- CISA patch-by (BOD 22-01)
- Added to KEV
Is CVE-2018-7445 being exploited?
Yes. CISA added CVE-2018-7445 to its Known Exploited Vulnerabilities catalog on . CISA only lists a CVE when it has reliable evidence of exploitation in the wild.
FIRST's EPSS model puts the probability of exploitation activity in the next 30 days at 60.8% (scored October 14, 2026).
- CISA KEV[ LISTED ]
- ENISA EUVD (exploited)[ — ]
- CIRCL KEV[ — ]
Catalog snapshot 2026-10-21. Full cross-catalog view: /kev-comparison
What to do
CISA required actionApply updates per vendor instructions.
US federal civilian agencies must remediate by (21 days after listing) under BOD 22-01. Everyone else: that deadline is a sensible upper bound, not a target. Vendor guidance and the NVD record are linked under Source above.
Other MikroTik RouterOS CVEs we track
| CVE / Vulnerability | Severity | CVSS | EPSS | Added to KEV |
|---|---|---|---|---|
| CVE-2026-67279 Mikrotik RouterOS Improper Enforcement of Behavioral Workflow Vulnerabilitywrite-up | [ MEDIUM ] | 6.5 | 1.0% | |
| CVE-2026-86060 MikroTik RouterOS Improper Neutralization of Argument Delimiters in a Command Vulnerabilitywrite-up | [ CRITICAL ] | 9.8 | 6.4% | |
| CVE-2026-67277 MikroTik RouterOS Missing Authentication for Critical Function Vulnerabilitywrite-up | [ HIGH ] | 8.2 | 1.6% | |
| CVE-2018-14847 MikroTik Router OS Directory Traversal Vulnerability | [ CRITICAL ] | 9.1 | 96.0% |