CVE-2023-34140 — Zyxel / ATP series firmware

Description (CNA)

A buffer overflow vulnerability in the Zyxel ATP series firmware versions 4.32 through 5.36 Patch 2, USG FLEX series firmware versions 4.50 through 5.36 Patch 2, USG FLEX 50(W) series firmware versions 4.16 through 5.36 Patch 2, USG20(W)-VPN series firmware versions 4.16 through 5.36 Patch 2, VPN series firmware versions 4.30 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 cause denial of service (DoS) conditions by sending a crafted request to the CAPWAP daemon.

Affected (CNA)

Vendor / product	Versions
Zyxel / ATP series firmware	affected 4.32 through 5.36 Patch 2
Zyxel / USG FLEX series firmware	affected 4.50 through 5.36 Patch 2
Zyxel / USG FLEX 50(W) series firmware	affected 4.16 through 5.36 Patch 2
Zyxel / USG20(W)-VPN series firmware	affected 4.16 through 5.36 Patch 2
Zyxel / VPN series firmware	affected 4.30 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)

CWE

CWE-120

References

https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-vulnerabilities-in-firewalls-and-wlan-controllers

ADP enrichment

CVE

No English description supplied.

https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-vulnerabilities-in-firewalls-and-wlan-controllers

CISA-ADP

No English description supplied.

No references supplied.