CVE-2019-3924 EXPLOIT
7.5
HIGH · CVSS 3.1 · EPSS 15.7% (pctl 97)
Patch early
A public exploit exists.
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.
Scoring
| CVSS | 7.5 (HIGH, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| EPSS | 15.7% — more likely to be exploited than 97% of all CVEs |
| Weakness | CWE-441 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2019-02-20 |
| Last modified | 2026-06-17 |
Affected (1)
| Vendor | Product |
|---|---|
| mikrotik | routeros |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | MikroTik RouterOS < 6.43.12 (stable) / < 6.42.12 (long-term) - Firewall and NAT Bypass | 2019-02-21 |
References
→ the Explorer · watch your stack · NVD