CVE-2018-9129
UnknownEPSS 0.97%
Last modified
CVE-2018-9129 is a vulnerability of currently unknown severity. ZyXEL ZyWALL/USG series devices have a Bleichenbacher vulnerability in their Internet Key Exchange (IKE) handshake implementation used for IPsec based VPN connections.. EPSS estimates a 0.97% chance of exploitation in the next 30 days.
Description
ZyXEL ZyWALL/USG series devices have a Bleichenbacher vulnerability in their Internet Key Exchange (IKE) handshake implementation used for IPsec based VPN connections.
Metrics
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Zyxel | Zywall 110 Firmware | All versions |
| Zyxel | Zywall 1100 Firmware | All versions |
| Zyxel | Zywall 310 Firmware | All versions |
| Zyxel | Zywall Vpn 50 Firmware | All versions |
| Zyxel | Zywall Vpn 100 Firmware | All versions |
| Zyxel | Zywall Vpn 300 Firmware | All versions |
| Zyxel | Usg 20w Firmware | All versions |
| Zyxel | Usg 40 Firmware | All versions |
| Zyxel | Usg 40w Firmware | All versions |
| Zyxel | Usg 60 Firmware | All versions |
| Zyxel | Usg 60w Firmware | All versions |
| Zyxel | Usg 110 Firmware | All versions |
| Zyxel | Usg 2200-Vpn Firmware | All versions |
| Zyxel | Usg 310 Firmware | All versions |
| Zyxel | Usg 1100 Firmware | All versions |
| Zyxel | Usg 1900 Firmware | All versions |
| Zyxel | Usg 20w-Vpn Firmware | All versions |
References
- https://www.zyxel.com/support/bleichenbacher_attack_vulnerability.shtmlPatch, Vendor Advisory
- https://www.zyxel.com/support/bleichenbacher_attack_vulnerability.shtmlPatch, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2018-9129?
ZyXEL ZyWALL/USG series devices have a Bleichenbacher vulnerability in their Internet Key Exchange (IKE) handshake implementation used for IPsec based VPN connections.
How severe is CVE-2018-9129?
Severity scoring for CVE-2018-9129 is pending analysis. The EPSS model estimates a 0.97% probability of exploitation in the next 30 days.
How do I fix CVE-2018-9129?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2018-9129?
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Scan your code nowSource: NVD / NIST