The authentication applet in Watchguard Fireware 11.11 Operating System has reflected XSS…
Priority LOW 29CWE-601Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Spoofing, Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-601 and CWE-79.
Summary
The authentication applet in Watchguard Fireware 11.11 Operating System has reflected XSS (this can also cause an open redirect).
Why it matters now
EPSS 0.00935 61st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:watchguard:fireware:*:*:*:*:*:*:*:* | up to 11.11 | Vulnerable | WatchGuard |
| cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Microsoft |
- cpe:2.3:o:watchguard:fireware:*:*:*:*:*:*:*:* Versions up to 11.11 Vulnerable ·WatchGuard
- cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2016-6154
- 2026-10-03 Alias added: GHSA-mp33-hchw-9hvg
References
More WatchGuard Fireware vulnerabilities
- TI-2022-09698 On WatchGuard Firebox and XTM appliances, an unauthenticated user can execute arbitrary… KEVCVSS 3.1CRITICAL 9.8
- TI-2025-13451 WatchGuard Firebox iked Out of Bounds Write Vulnerability KEVCVSS 4.0CRITICAL 9.3
- TI-2025-08474 WatchGuard Firebox iked Out of Bounds Write Vulnerability KEVCVSS 4.0CRITICAL 9.3
- TI-2022-07330 WatchGuard Firebox and XTM appliances allow a remote attacker with unprivileged… KEVCVSS 3.1HIGH 8.8
- TI-2013-05132 Buffer overflow in WGagent in WatchGuard WSM and Fireware before 11.8 allows remote… CVSS 2.0HIGH 9.3
- TI-2026-02885 WatchGuard Firebox Out of Bounds Write Vulnerability CVSS 4.0HIGH 8.6
Sources
- CVE-2016-6154 · CVE Program
- CVE-2016-6154 · NVD
- FIRST EPSS
- GHSA-mp33-hchw-9hvg · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences