CVE-2022-30526
Last modified
CVE-2022-30526 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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.. EPSS estimates a 1.12% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Zyxel | Usg Flex 100w Firmware | >= 4.50, <= 5.30 |
| Zyxel | Usg Flex 200 Firmware | >= 4.50, <= 5.30 |
| Zyxel | Usg Flex 500 Firmware | >= 4.50, <= 5.30 |
| Zyxel | Usg Flex 700 Firmware | >= 4.50, <= 5.30 |
| Zyxel | Usg Flex 50w Firmware | >= 4.16, <= 5.30 |
| Zyxel | Usg20w-Vpn Firmware | >= 4.16, <= 5.30 |
| Zyxel | Atp800 Firmware | >= 4.32, <= 5.30 |
| Zyxel | Atp700 Firmware | >= 4.32, <= 5.30 |
| Zyxel | Atp500 Firmware | >= 4.32, <= 5.30 |
| Zyxel | Atp200 Firmware | >= 4.32, <= 5.30 |
| Zyxel | Atp100w Firmware | >= 4.32, <= 5.30 |
| Zyxel | Atp100 Firmware | >= 4.32, <= 5.30 |
| Zyxel | Vpn1000 Firmware | >= 4.30, <= 5.30 |
| Zyxel | Vpn300 Firmware | >= 4.30, <= 5.30 |
| Zyxel | Vpn100 Firmware | >= 4.30, <= 5.30 |
| Zyxel | Vpn50 Firmware | >= 4.30, <= 5.30 |
| Zyxel | Usg20-Vpn Firmware | >= 4.30, <= 5.30 |
| Zyxel | Usg 2200-Vpn Firmware | >= 4.30, <= 5.30 |
| Zyxel | Zywall 110 Firmware | >= 4.30, <= 5.30 |
| Zyxel | Zywall 310 Firmware | >= 4.30, <= 5.30 |
| Zyxel | Zywall 1100 Firmware | >= 4.30, <= 5.30 |
| Zyxel | Usg40 Firmware | >= 4.09, <= 4.72 |
| Zyxel | Usg40w Firmware | >= 4.09, <= 4.72 |
| Zyxel | Usg60 Firmware | >= 4.09, <= 4.72 |
| Zyxel | Usg60w Firmware | >= 4.09, <= 4.72 |
References
- http://packetstormsecurity.com/files/168202/Zyxel-Firewall-SUID-Binary-Privilege-Escalation.htmlExploit, Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/168202/Zyxel-Firewall-SUID-Binary-Privilege-Escalation.htmlExploit, Third Party Advisory, VDB Entry
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2022-30526?
How severe is CVE-2022-30526?
How do I fix CVE-2022-30526?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2022
- CVE-2022-3052Heap buffer overflow in Window Manager in Google Chrome on C…8.8
- CVE-2022-30521The LAN-side Web-Configuration Interface has Stack-based Buf…9.8
- CVE-2022-30522If Apache HTTP Server 2.4.53 is configured to do transformat…7.5
- CVE-2022-30523Trend Micro Password Manager (Consumer) version 5.0.0.1266 a…7.8
- CVE-2022-30524There is an invalid memory access in the TextLine class in T…7.8
- CVE-2022-30525A OS command injection vulnerability in the CGI program of Z…9.8
- CVE-2022-30527A vulnerability has been identified in SINEC NMS (All versio…7.8
- CVE-2022-30528SQL Injection vulnerability in asith-eranga ISIC tour bookin…9.8
- CVE-2022-30529File upload vulnerability in asith-eranga ISIC tour booking …7.2
- CVE-2022-3053Inappropriate implementation in Pointer Lock in Google Chrom…4.3
- CVE-2022-30530Protection mechanism failure in the Intel(R) DSA software be…7.8
- CVE-2022-30531Out-of-bounds read in the Intel(R) Iris(R) Xe MAX drivers fo…5.5
Are you affected by CVE-2022-30526?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST