CVE-2019-3924

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

MikroTik RouterOS before 6.43.12 (stable) and 6.42.12 (long-term) is vulnerable to an intermediary vulnerability. The software will execute user defined network requests to both WAN and LAN clients. A remote unauthenticated attacker can use this vulnerability to bypass the router's firewall or for general network scanning activities.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Weakness enumeration

CWE-441

Affected software

VendorProductVersions
TenableMikroTik RouterOSRouterOS long-term 6.42.11 and below, RouterOS stable 6.43.11 and below

References

Timeline

Published
Feb 20, 2019
Last modified
Jun 17, 2026
NVD status
Analyzed

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CVE-2019-3924: High severity, CVSS 7.5 | Vulnix