CVE-2026-86136
Watchguard Fireware: path traversal can lead to denial of service
- Risk score
- 53/100
- CVSS
- 8.1 v3.1
- Exploit chance (30 days)
- 0.3%
- Published
- 30 Sep 2026
Open in the live forecast Today's forecast
What to know
- What it is
- A missing authorization vulnerability in the wgagent management daemon's session initialization function allows an authenticated, low-privileged user (including a read-only or guest administrator account) to crash the wgagent process and read arbitrary files accessible to the daemon by submitting a specially crafted m…
- Affected
- Watchguard Fireware
- Fix
- Apply the vendor's security update; see the linked advisory.
- Exploitation
- No known exploitation
Why it is Yellow
- CVSS 8.1 high
References
Original description
A missing authorization vulnerability in the wgagent management daemon's session initialization function allows an authenticated, low-privileged user (including a read-only or guest administrator account) to crash the wgagent process and read arbitrary files accessible to the daemon by submitting a specially crafted management API request.
Last activity 30 Sep 2026. Patch Forecast updates every hour.