Medium severity5.9NVD Advisory· Published Aug 15, 2018· Updated Jun 17, 2026

CVE-2018-9129

Description

ZyXEL ZyWALL/USG series devices have a Bleichenbacher vulnerability in their Internet Key Exchange (IKE) handshake implementation used for IPsec based VPN connections.

AI Insight

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

Affected products

Zyxel/ZyWALL/USG seriesllm-create

Patches

Vulnerability mechanics

References

www.zyxel.com/support/bleichenbacher_attack_vulnerability.shtmlnvdPatchVendor Advisory
web-in-security.blogspot.com/2018/08/practical-bleichenbacher-attacks-on-ipsec-ike.htmlnvdThird Party Advisory
ftp.zyxel.com/USG110/firmware/USG110_4.32%28AAPH.0%29C0_2.pdfnvd

News mentions

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epss	0.001
exploit	0.000
kev	0.000
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ransomware	0.000