Vulnerability Description
A privilege escalation vulnerability was identified in the CLI command of Zyxel USG FLEX 100(W) firmware versions 4.50 through 5.30, USG FLEX 200 firmware versions 4.50 through 5.30, USG FLEX 500 firmware versions 4.50 through 5.30, USG FLEX 700 firmware versions 4.50 through 5.30, USG FLEX 50(W) firmware versions 4.16 through 5.30, USG20(W)-VPN firmware versions 4.16 through 5.30, ATP series firmware versions 4.32 through 5.30, VPN series firmware versions 4.30 through 5.30, USG/ZyWALL series firmware versions 4.09 through 4.72, which could allow a local attacker to execute some OS commands with root privileges in some directories on a vulnerable device.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Zyxel | Usg Flex 100W Firmware | >= 4.50, <= 5.30 |
| Zyxel | Usg Flex 100W | - |
| Zyxel | Usg Flex 200 Firmware | >= 4.50, <= 5.30 |
| Zyxel | Usg Flex 200 | - |
| Zyxel | Usg Flex 500 Firmware | >= 4.50, <= 5.30 |
| Zyxel | Usg Flex 500 | - |
| Zyxel | Usg Flex 700 Firmware | >= 4.50, <= 5.30 |
| Zyxel | Usg Flex 700 | - |
| Zyxel | Usg Flex 50W Firmware | >= 4.16, <= 5.30 |
| Zyxel | Usg Flex 50W | - |
| Zyxel | Usg20W-Vpn Firmware | >= 4.16, <= 5.30 |
| Zyxel | Usg20W-Vpn | - |
| Zyxel | Atp800 Firmware | >= 4.32, <= 5.30 |
| Zyxel | Atp800 | - |
| Zyxel | Atp700 Firmware | >= 4.32, <= 5.30 |
| Zyxel | Atp700 | - |
| Zyxel | Atp500 Firmware | >= 4.32, <= 5.30 |
| Zyxel | Atp500 | - |
| Zyxel | Atp200 Firmware | >= 4.32, <= 5.30 |
| Zyxel | Atp200 | - |
Related Weaknesses (CWE)
References
- http://packetstormsecurity.com/files/168202/Zyxel-Firewall-SUID-Binary-PrivilegeExploitThird Party AdvisoryVDB Entry
- https://www.zyxel.com/support/Zyxel-security-advisory-authenticated-directory-trVendor Advisory
- http://packetstormsecurity.com/files/168202/Zyxel-Firewall-SUID-Binary-PrivilegeExploitThird Party AdvisoryVDB Entry
- https://www.zyxel.com/support/Zyxel-security-advisory-authenticated-directory-trVendor Advisory
FAQ
What is CVE-2022-30526?
CVE-2022-30526 is a vulnerability with a CVSS score of 7.8 (HIGH). A privilege escalation vulnerability was identified in the CLI command of Zyxel USG FLEX 100(W) firmware versions 4.50 through 5.30, USG FLEX 200 firmware versions 4.50 through 5.30, USG FLEX 500 firm...
How severe is CVE-2022-30526?
CVE-2022-30526 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-30526?
Check the references section above for vendor advisories and patch information. Affected products include: Zyxel Usg Flex 100W Firmware, Zyxel Usg Flex 100W, Zyxel Usg Flex 200 Firmware, Zyxel Usg Flex 200, Zyxel Usg Flex 500 Firmware.