by Kastro
Paper/Archive/CVE-2021-35029

CVE-2021-35029

Zyxel USG/Zywall series Firmware — An authentication bypasss vulnerability in the web-based management interface of Zyxel USG/Zywall series firmware versions 4.35 through 4…

EPSS 2%CVSS 9.8
critical.is priorityof 100
46
CVSS 9.8 (CNA, NVD agree)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 82.9.829 × 2016.6No public exploit+100.0SSVC exploitation: unknown+100.0
Description · from the CVE record

An authentication bypasss vulnerability in the web-based management interface of Zyxel USG/Zywall series firmware versions 4.35 through 4.64 and USG Flex, ATP, and VPN series firmware versions 4.35 through 5.01, which could allow a remote attacker to execute arbitrary commands on an affected device.

Affected

ProductAffectedFixed inSource
USG/Zywall series Firmware4.35 through 4.64–CNA
USG FLEX series Firmware4.35 through 5.01–CNA
ATP series Firmware4.35 through 5.01–CNA
VPN series Firmware4.35 through 5.01–CNA

Scores by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Zyxel (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

refzyxel.com/support/Zyxel_security_advisory_for_attacks_against_security_appliances.shtml