CVE-2022-30526: zyxel atp series firmware Improper Privilege Management
Vulnerability summary
CVE-2022-30526 is a high (CVSS 7.8) Improper Privilege Management vulnerability in zyxel atp series firmware. EPSS estimates a 1.13% chance of exploitation in the next 30 days, higher than 65.7% of scored vulnerabilities. 2 public exploits are recorded.
Timeline
- 19-07-2022PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
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 metrics
2 scores · 2 sources · 1 version- NVDNIST7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
1.13%
Chance of exploitation in the next 30 days
Percentile
66%
Versus all other CVEs
30-day change
0.00 pp
From 1.13% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
2 foundExploit Reference (packetstormsecurity.com)
Maturity: unknown
Zyxel Firewall SUID Binary Privilege Escalation
exploit/linux/local/zyxel_suid_cp_lpe
Maturity: weaponized
Weaknesses
CWE · root causeAffected systems
Zyxel34 products
- atp series firmware4.32 through 5.30
- atp100_firmware≥ 4.32, ≤ 5.30
- atp100w_firmware≥ 4.32, ≤ 5.30
- atp200_firmware≥ 4.32, ≤ 5.30
- atp500_firmware≥ 4.32, ≤ 5.30
1 vendor · 34 products
References
2 links- packetstormsecurity.com/files/168202/Zyxel-Firewall-SUID-Binary-Privilege-Escalation.htmlX Refsource MISCExploitThird Party AdvisoryVDB Entry