Skip to content
Fencer Intel
medium 5.3

CVE-2017-8055 json

WatchGuard Fireware allows user enumeration, e.g., in the Firebox XML-RPC login handler.

published 2017-04-22 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-17018

cvss
5.3
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.6%
EPSS 1.6% chance of exploitation in 30 days, percentile 75%
public exploits
0
none known

Summary

WatchGuard Fireware allows user enumeration, e.g., in the Firebox XML-RPC login handler. A login request that contains a blank password sent to the XML-RPC agent in Fireware v11.12.1 and earlier returns different responses for valid and invalid usernames. An attacker could exploit this vulnerability to enumerate valid usernames on an affected Firebox.

Exploit prediction

1.59% chance of exploitation in the next 30 days, higher than 75% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • sidertia.com https://www.sidertia.com/Home/Community/Blog/2017/04/17/Fixed-the-Fireware-Vulnerabilities-discovered-by-Sidertia referenced PoC, tagged "exploit" by a source, unverified
  • packetstormsecurity.com https://packetstormsecurity.com/files/142177/watchguardfbxtm-xxeinject.txt referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 5.3 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:P/I:N/A:N

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.