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CVE-2018-7445

Improper Restriction of Memory Buffer — is CVE-2018-7445real, exploitable, or a false positive? Here's the community ground truth.

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Critical · CVSS 9.8EPSS 61.0%CISA KEVCWE-119 · Improper Restriction of Memory Buffer

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

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.

References

NVD MITRE CVE.org CISA KEV

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Community ground truth

Community verdict

2 verdicts
Not a real issue

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Community real-world severity: Critical (Critical 2) — CVSS base score 9.8

In line with its CVSS base score.

Field notes & remediation

Verdicts are the quick signal — notes are the evidence and fixes behind them.

  • 0
    Field note · Sam WhitakerCurated

    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. Listed in the CISA KEV catalog (added 2022-09-08) — confirmed exploited in the wild, not theoretical. FIRST EPSS puts the chance of exploitation in the next 30 days at ~61%. Treat it as real and prioritize remediation over triage.

  • 0
    Remediation · Mara OkonkwoCurated

    Required action for MikroTik RouterOS: Apply updates per vendor instructions. CISA set a federal remediation due date of 2022-09-29. After patching, verify the vulnerable path is no longer reachable before closing the finding.

Related CVEs

Same weakness — CWE-119 · Improper Restriction of Memory Buffer.