CVE-2017-14616 Denial of service in n/a

What is CVE-2017-14616?

CVE-2017-14616 is a high-severity denial of service vulnerability in Watchguard Fireware, published on 20 Sep 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An FBX-5312 issue was discovered in WatchGuard Fireware before 12.0. If a login attempt is made in the XML-RPC interface with an XML message containing an empty member element, the wgagent crashes, logging out any user with a session opened in the UI. By continuously executing the failed login attempts, UI management of the device becomes impossible.

Weakness: CWE-400

Which versions are affected by CVE-2017-14616?

It affects 1 product.

Products include Watchguard Fireware.

How do I fix CVE-2017-14616?

No fix has been published for CVE-2017-14616 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2017-14616 being exploited?

There is no known exploitation of CVE-2017-14616 in the wild and no public exploit code.

Other vulnerabilities in Watchguard Fireware

• CVE-2022-26318 WatchGuard Firebox and XTM Appliances Arbitrary Code Execution Exploited Critical 9.8
• CVE-2025-14733 WatchGuard Firebox Out of Bounds Write Exploited Critical 9.3
• CVE-2025-9242 WatchGuard Firebox Out-of-Bounds Write Exploited Critical 9.3
• CVE-2022-23176 WatchGuard Firebox and XTM Privilege Escalation Exploited High 8.8
• CVE-2022-31789 Integer overflow in n/a Critical 9.8

All Watchguard Fireware vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-2qcw-856x-wxvp.