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Unrated severityNVD Advisory· Published Nov 28, 2023· Updated Oct 17, 2024

CVE-2023-4398

CVE-2023-4398

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

8
  • Zyxel/VPN seriesllm-fuzzy2 versions
    4.30 - 5.37+ 1 more
    • (no CPE)range: 4.30 - 5.37
    • (no CPE)range: versions 4.30 through 5.37
  • Zyxel/ATP seriesllm-fuzzy2 versions
    4.32 - 5.37+ 1 more
    • (no CPE)range: 4.32 - 5.37
    • (no CPE)range: versions 4.32 through 5.37
  • Zyxel/USG FLEX seriesllm-fuzzy3 versions
    4.50 - 5.37+ 2 more
    • (no CPE)range: 4.50 - 5.37
    • (no CPE)range: versions 4.16 through 5.37
    • (no CPE)range: versions 4.50 through 5.37
  • Zyxel/USG20(W)-VPN seriescpe-rescue
    Range: versions 4.16 through 5.37

Patches

Vulnerability mechanics

References

1

News mentions

0

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