A command injection vulnerability in the access point (AP) management feature of the Zyxel ATP series firmware versions 5.00 through 5.36…

Description

A command injection vulnerability in the access point (AP) management feature of the Zyxel ATP series firmware versions 5.00 through 5.36 Patch 2, USG FLEX series firmware versions 5.00 through 5.36 Patch 2, USG FLEX 50(W) series firmware versions 5.00 through 5.36 Patch 2, USG20(W)-VPN series firmware versions 5.00 through 5.36 Patch 2, VPN series firmware versions 5.00 through 5.36 Patch 2, NXC2500 firmware versions 6.10(AAIG.0) through 6.10(AAIG.3), and NXC5500 firmware versions 6.10(AAOS.0) through 6.10(AAOS.4), could allow an unauthenticated, LAN-based attacker to execute some OS commands on an affected device if the attacker could trick an authorized administrator to add their IP address to the managed AP list in advance.

Timeline

Scores

EPSS (exploitation in 30 days)

0.68% · top 47% of all CVEs (7 Nov 2026)

CISA SSVC

Exploitation: none · Automatable: no · Technical impact: total

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.0.

Weakness

• CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') (opens in a new tab)All about CWE-78 and its CVEs

Affected products

• Zyxel · ATP series firmware

  • affected 5.00 through 5.36 Patch 2

• Zyxel · USG FLEX series firmware

  • affected 5.00 through 5.36 Patch 2

• Zyxel · USG FLEX 50(W) series firmware

  • affected 5.00 through 5.36 Patch 2

• Zyxel · USG20(W)-VPN series firmware

  • affected 5.00 through 5.36 Patch 2

• Zyxel · VPN series firmware

  • affected 5.00 through 5.36 Patch 2

• Zyxel · NXC2500 firmware

  • affected 6.10(AAIG.0) through 6.10(AAIG.3)

• Zyxel · NXC5500 firmware

  • affected 6.10(AAOS.0) through 6.10(AAOS.4)

References (1)

• https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-vulnerabilities-in-firewalls-and-wlan-controllers (opens in a new tab)vendor-advisoryx_transferred

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2023-34141](https://trackcve.app/badge/CVE-2023-34141.svg)](https://trackcve.app/cve/CVE-2023-34141)

Record last updated 29 Oct 2024, 16:06 UTC.