7.8

CVE-2022-30526: zyxel atp series firmware Improper Privilege Management

CVSS: 7.8v3.1HighModified
Published 19-07-2022Last modified 03-08-2024

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.

Overall risk
41/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
1.13%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits2reference, metasploit

Timeline

  1. 19-07-2022
    PublishedVulnerability first disclosed.
  2. 03-08-2024
    Last 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

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

19-09-202619-10-2026
EPSS score
1.13%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

2 found
  • referenceUnverified

    Exploit Reference (packetstormsecurity.com)

    Maturity: unknown

  • MetasploitMetasploitremoteVerified

    Zyxel Firewall SUID Binary Privilege Escalation

    exploit/linux/local/zyxel_suid_cp_lpe

    Maturity: weaponized

Weaknesses

CWE · root cause

Affected systems

Zyxel34 products

1 vendor · 34 products

References

2 links