CVE-2019-3943
MikroTik RouterOS versions Stable 6.43.12 and below, Long-term 6.42.12 and below, and Testing 6...
MikroTik RouterOS versions Stable 6.43.12 and below, Long-term 6.42.12 and below, and Testing 6.44beta75 and below are vulnerable to an authenticated, remote directory traversal via the HTTP or Winbox interfaces. An authenticated, remote attack can use this vulnerability to read and write files outside of the sandbox directory (/rw/disk).
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
MikroTik RouterOS versions Stable 6.43.12 and below, Long-term 6.42.12 and below, and Testing 6.44beta75 and below are vulnerable to an authenticated, remote directory traversal via the HTTP or Winbox interfaces. An authenticated, remote attack can use this vulnerability to read and write files outside of the sandbox directory (/rw/disk).
- Record
CVE-2019-3943- CVSS 3.1
- 8.1 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N - CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:S/C:C/I:P/A:N - Weakness
- CWE-23, CWE-22
- Updated
- 2026-11-02
CVE List No score
MikroTik RouterOS versions Stable 6.43.12 and below, Long-term 6.42.12 and below, and Testing 6.44beta75 and below are vulnerable to an authenticated, remote directory traversal via the HTTP or Winbox interfaces. An authenticated, remote attack can use this vulnerability to read and write files outside of the sandbox directory (/rw/disk).
- Record
CVE-2019-3943- Weakness
- CWE-23
- Updated
- 2026-11-02
EUVDEUVD-2019-13550 No score
MikroTik RouterOS versions Stable 6.43.12 and below, Long-term 6.42.12 and below, and Testing 6.44beta75 and below are vulnerable to an authenticated, remote directory traversal via the HTTP or Winbox interfaces. An authenticated, remote attack can use this vulnerability to read and write files outside of the sandbox directory (/rw/disk).
- Record
EUVD-2019-13550- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-5qg2-wqx5-pq26
MikroTik RouterOS versions Stable 6.43.12 and below, Long-term 6.42.12 and below, and Testing 6...
MikroTik RouterOS versions Stable 6.43.12 and below, Long-term 6.42.12 and below, and Testing 6.44beta75 and below are vulnerable to an authenticated, remote directory traversal via the HTTP or Winbox interfaces. An authenticated, remote attack can use this vulnerability to read and write files outside of the sandbox directory (/rw/disk).
- Record
GHSA-5qg2-wqx5-pq26- CVSS 3.1
- 8.1 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N - Weakness
- CWE-22
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2019-3943 is a high vulnerability (CVSS 8.1) in Mikrotik Routeros, published April 10, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.67%, the 89th percentile. No source names a fixed version.