CVE-2023-34140
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 …
Impact
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 products
| Vendor | Product | Affected versions |
|---|---|---|
| Zyxel | Usg 20w-Vpn Firmware | from 4.16 before 5.37 |
| Zyxel | Usg 2200-Vpn Firmware | from 4.30 before 5.37 |
| Zyxel | Usg Flex 100 Firmware | from 4.50 before 5.37 |
| Zyxel | Usg Flex 100w Firmware | from 4.50 before 5.37 |
| Zyxel | Usg Flex 200 Firmware | from 4.50 before 5.37 |
| Zyxel | Usg Flex 50 Firmware | from 4.50 before 5.37 |
| Zyxel | Usg Flex 500 Firmware | from 4.50 before 5.37 |
| Zyxel | Usg Flex 50w Firmware | from 4.50 before 5.37 |
| Zyxel | Usg Flex 700 Firmware | from 4.50 before 5.37 |
| Zyxel | Zywall Atp100 Firmware | from 4.32 before 5.37 |
| Zyxel | Zywall Atp100w Firmware | from 4.32 before 5.37 |
| Zyxel | Zywall Atp200 Firmware | from 4.32 before 5.37 |
Weakness classification
References
- NVD record
- CVE.org record
- https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-vulnerabilities-in-firewalls-and-wlan-controllers
- https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-vulnerabilities-in-firewalls-and-wlan-controllers