CVE-2023-34140

Description

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.

Reserved 2023-05-26 | Published 2023-07-17 | Updated 2024-10-21 | Assigner Zyxel

Problem types

CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

Product status

Default status
unaffected

4.32 through 5.36 Patch 2
affected

Default status
unaffected

4.50 through 5.36 Patch 2
affected

Default status
unaffected

4.16 through 5.36 Patch 2
affected

Default status
unaffected

4.16 through 5.36 Patch 2
affected

Default status
unaffected

4.30 through 5.36 Patch 2
affected

Default status
unaffected

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

Default status
unaffected

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

References

www.zyxel.com/...abilities-in-firewalls-and-wlan-controllers vendor-advisory

cve.org (CVE-2023-34140)

nvd.nist.gov (CVE-2023-34140)

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