VULNERABILITY INTELLIGENCE

CVE-2019-3977

CVSS score7.5 HIGH
EPSS probability1.06%
CISA KEVNot currently listed
Published2019-10-29
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Description

RouterOS 6.45.6 Stable, RouterOS 6.44.5 Long-term, and below insufficiently validate where upgrade packages are download from when using the autoupgrade feature. Therefore, a remote attacker can trick the router into "upgrading" to an older version of RouterOS and possibly reseting all the system's usernames and passwords.

Weakness classification

  • CWE-494: Download of Code Without Integrity Check

Primary references