Is CVE-2018-7445 actively exploited?

Yes. KEV Intelligence tracks CVE-2018-7445 as a known exploited vulnerability. Confidence is confirmed.

What exploitation activity has KEV Intelligence observed?

KEV Intelligence has not yet recorded sensor-observed exploitation attempts for CVE-2018-7445. Our sensors continue to monitor for activity targeting this CVE.

Which versions are affected?

Version-level data is not available; KEV Intelligence tracks MikroTik RouterOS.

Yes. CVE-2018-7445 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

Vulnerability report

Exploited in the wild Confirmed confidence In CISA KEV

CVE-2018-7445

RouterOS

MikroTik / RouterOS

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Severity: CVSS 9.8 · Critical
Confidence: Confirmed
Exploit status: Exploited in the wild
EPSS: 61.0%
First observed: —
Last observed: —

Decision summary

What security teams need to know first

Direct answers before the deeper technical record.

What it is

CVE-2018-7445 is an unauthenticated vulnerability affecting MikroTik RouterOS. A buffer overflow was found in the MikroTik RouterOS SMB service when processing NetBIOS session request messages. Remote attackers with...

Is it exploited?

Yes. KEV Intelligence tracks this CVE as a known exploited vulnerability. Confidence is confirmed.

Who is affected?

MikroTik / RouterOS.

What should we do?

Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.

Overview

A buffer overflow was found in the MikroTik RouterOS SMB service when processing NetBIOS session request messages

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.

Published: 19 Mar 2018
Exploitation Reported: 08 Sep 2022
Attack vector: Remote
Complexity: Low
Privileges: None
User interaction: None

CVE References

CVE Record CVE.org · CVE Record https://www.cve.org/CVERecord?id=CVE-2018-7445
44290 exploit-db.com · Exploit https://www.exploit-db.com/exploits/44290/
103427 securityfocus.com · VDB Entry http://www.securityfocus.com/bid/103427
20180315 [CORE-2018-0003] MikroTik RouterOS SMB Buffer Overflow seclists.org · Mailing List http://seclists.org/fulldisclosure/2018/Mar/38
coresecurity.com/advisories/mikrotik-routeros-smb-buffer-over... coresecurity.com · CVE Record https://www.coresecurity.com/advisories/mikrotik-routeros-smb-buffer-...

Exploitation evidence

Why KEV Intelligence marks this CVE as exploited

Third-party attestation and first-party sensor observation are shown separately so teams can judge the evidence chain.

Exploited in the wild

CISA

Recorded 08 Sep 2022

Independent exploitation attestation added to the KEV Intelligence record.

Known exploited vulnerability sources

Per-source evidence links for KEV attestations are available through the KEV Intelligence Pro API.

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Source	Added
CISA First	2022-09-08 00:00 UTC

Detection

Operational artifacts and observed signals

Make the evidence actionable in scanner, SOC, and edge-control workflows.

Observed signals

Request targets: 0
User-Agents: 0

Raw values available in Pro and Enterprise.

Scanner coverage

Nessus template detected 02 Jun 2025.

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Virtual patch status

No KEV Intelligence virtual patch is currently available. Future rules ship for ModSecurity, Cloudflare, and AWS WAF.

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Scanner Artifacts

Scanner and exploit-framework references linked to this CVE.

Scanner	Reference	Detected
Nessus	https://www.tenable.com/plugins/nessus/502060	02 Jun 2025

Risk and context

Severity, weaknesses, and research context

CVSS v3.1

9.8 Critical

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

EPSS

61.0%

Weaknesses

Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-119

All CVSS Scores

CVSS v3.1 9.8 Critical

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

CVSS v2.0 10.0 High

AV:N/AC:L/Au:N/C:C/I:C/A:C

Timeline

From disclosure to observed exploitation

02 Jun 2025
Nessus plugin available

Scanner coverage available
08 Sep 2022
Added to CISA KEV

Listed in the CISA Known Exploited Vulnerabilities catalog
19 Mar 2018
CVE published

Vulnerability disclosed publicly
23 Feb 2018
CVE ID reserved

Identifier reserved by the CNA

Pro API

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Evidence confidence and provenance
First-party sensor telemetry
PoC and scanner references
Affected versions and enrichment
Automation-ready JSON delivery

GET /api/v2/pro/kevs/CVE-2018-7445

Free JSON includes basic KEV fields

{
  "cve_id": "CVE-2018-7445",
  "confidence": "Confirmed",
  "cvss_score": 9.8,
  "cvss_estimated": false,
  "epss_score": 0.61018,
  "exploit_status": {
    "exploited_in_the_wild": true,
    "active_exploitation_observed": false
  },
  "sensor_telemetry": { "attempts": 0, "sensors": 0 }
}

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