CVE-2019-3976

8.8 highEPSS 1.7%

High (8.8) in mikrotik routeros. EPSS 1.7% chance of exploitation in the next 30 days.

RouterOS 6.45.6 Stable, RouterOS 6.44.5 Long-term, and below are vulnerable to an arbitrary directory creation vulnerability via the upgrade package's name field. If an authenticated user installs a malicious package then a directory could be created and the developer shell could be enabled.

Severity

CVSS 3.1

8.8 high

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

EPSS: 1.7% chance of exploitation in the next 30 days; higher than 76% of CVEs (scores of 2026-10-31)
CWEs: CWE-22, CWE-23
Published: 2019-10-29
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

mikrotik:routeros

References

https://www.tenable.com/security/research/tra-2019-46
https://www.tenable.com/security/research/tra-2019-46

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