CVE-2023-28771
published 2023-04-25CVE-2023-28771: Improper error message handling in Zyxel ZyWALL/USG series firmware versions 4.60 through 4.73, VPN series firmware versions 4.60 through 5.35, USG FLEX series…
critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
KEVITWEXPLOIT
CISA Known Exploited Vulnerabilitydue 2023-06-21
Exploited in the wild
Improper error message handling in Zyxel ZyWALL/USG series firmware versions 4.60 through 4.73, VPN series firmware versions 4.60 through 5.35, USG FLEX series firmware versions 4.60 through 5.35, and ATP series firmware versions 4.60 through 5.35, which could allow an unauthenticated attacker to execute some OS commands remotely by sending crafted packets to an affected device.
Affected
25 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| zyxel | atp100_firmware | >= 4.60 < 5.36 | 5.36 |
| zyxel | atp100w_firmware | >= 4.60 < 5.35 | 5.35 |
| zyxel | atp200_firmware | >= 4.60 < 5.36 | 5.36 |
| zyxel | atp500_firmware | >= 4.60 < 5.36 | 5.36 |
| zyxel | atp700_firmware | >= 4.60 < 5.36 | 5.36 |
| zyxel | atp800_firmware | >= 4.60 < 5.36 | 5.36 |
| zyxel | atp_series_firmware | — | — |
| zyxel | usg_flex_100_firmware | >= 4.60 < 5.36 | 5.36 |
| zyxel | usg_flex_100w_firmware | >= 4.60 < 5.36 | 5.36 |
| zyxel | usg_flex_200_firmware | >= 4.60 < 5.36 | 5.36 |
| zyxel | usg_flex_500_firmware | >= 4.60 < 5.36 | 5.36 |
| zyxel | usg_flex_50_firmware | >= 4.60 < 5.36 | 5.36 |
| zyxel | usg_flex_50w_firmware | >= 4.60 < 5.36 | 5.36 |
| zyxel | usg_flex_700_firmware | >= 4.60 < 5.36 | 5.36 |
| zyxel | usg_flex_series_firmware | — | — |
| zyxel | vpn1000_firmware | >= 4.60 < 5.36 | 5.36 |
| zyxel | vpn100_firmware | >= 4.60 < 5.36 | 5.36 |
| zyxel | vpn300_firmware | >= 4.60 < 5.36 | 5.36 |
| zyxel | vpn50_firmware | >= 4.60 < 5.36 | 5.36 |
| zyxel | vpn_series_firmware | — | — |
| zyxel | zywall_usg_100_firmware | — | — |
| zyxel | zywall_usg_100_firmware | >= 4.60 < 4.73 | 4.73 |
| zyxel | zywall_usg_310_firmware | — | — |
| zyxel | zywall_usg_310_firmware | >= 4.60 < 4.73 | 4.73 |
| zyxel | zywall_usg_series_firmware | — | — |
CVSS provenance
nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
vulncheck9.8CRITICAL
cisa9.8CRITICAL