CVE-2018-7445

CRITICAL
9.8
CVSS Score
Published: March 19, 2018 at 09:00 PM UTC
Updated: June 17, 2026 at 02:03 AM UTC
1 product affected across 1 vendorRouterOS

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Severity
CRITICAL9.8
Exploitation
CISA KEV
Exploit prediction
EPSS 66%
SSVC
Active

Actively Exploited

CISA Known Exploited Vulnerabilities (KEV) Catalog

EPSS Score65.8%

EPSS (Exploit Prediction Scoring System) estimates a 65.8% chance this CVE is exploited in the wild within the next 30 days — higher than 99% of all CVEs. It complements CVSS: a high EPSS on a mid-severity CVE can still be urgent.

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.

Required Action
Apply updates per vendor instructions.
Ransomware Use
Unknown
Added to KEV
Sep 8, 2022
Remediation Due
Sep 29, 2022
1489 days overdue

Description

A buffer overflow was found in the MikroTik RouterOS SMB service when processing NetBIOS session request messages. Remote attackers with access to the service can exploit this vulnerability and gain code execution on the system. The overflow occurs before authentication takes place, so it is possible for an unauthenticated remote attacker to exploit it. All architectures and all devices running RouterOS before versions 6.41.3/6.42rc27 are vulnerable.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Affected range stops below 6.41.3, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (5)

Mailing Listx_refsource_FULLDISCExploitThird Party AdvisoryVDB Entry
http://seclists.org/fulldisclosure/2018/Mar/38
VDB Entryx_refsource_BIDThird Party Advisory
http://www.securityfocus.com/bid/103427
Exploitx_refsource_EXPLOIT-DBThird Party AdvisoryVDB Entry
https://www.exploit-db.com/exploits/44290/
US Government Resource
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-7445

SSVC — Action Prioritization

SSVCActiveAutomatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

9.8CRITICALCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-119

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