CVEvulnerability

CVE-2023-4398

7.5 HIGH Published 2023-11-28 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2023-11-28
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-190

Description

An integer overflow vulnerability in the source code of the QuickSec IPSec toolkit used in the VPN feature of the Zyxel ATP series firmware versions 4.32 through 5.37, USG FLEX series firmware versions 4.50 through 5.37, USG FLEX 50(W) series firmware versions 4.16 through 5.37, USG20(W)-VPN series firmware versions 4.16 through 5.37, and VPN series firmware versions 4.30 through 5.37, could allow an unauthenticated attacker to cause denial-of-service (DoS) conditions on an affected device by sending a crafted IKE packet.

Affected configurations

• zyxel zld (>= 4.32 <= 5.37) • zyxel zld (>= 4.50 <= 5.37) • zyxel zld (>= 4.16 <= 5.37) • zyxel zld (>= 4.30 <= 5.37)

Related

Weakness · CWE (1)

  • CWE-190 Integer Overflow or Wraparound weakness

References