SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2019-3977

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.

HIGH 7.5EPSS 1.06%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (1.06%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

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.

CVSS 3.1
7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
EPSS
1.06% probability · 63th percentile
CISA KEV
Not listed
Weakness
CWE-494
Affected
mikrotik/routeros
Source
vulnreport@tenable.com

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.