4.9mediumMedium
CVE-2026-13371
Watchguard Fireware
An authenticated administrator can trigger a denial-of-service condition in the Fireware Management Web UI by sending malformed or crafted data to the put_data endpoint, which performs unsafe deserialization of the attacker-supplied input.
Exploitation status
- A vendor advisory or patch reference has been published.
What the metrics mean
- It is reachable over a network, without needing local access.
- For an attacker who can reach it, no special conditions are needed to exploit it.
- To exploit it, an administrative account is needed.
- Beyond that, no action by a user is required.
Scoring
- CVSS
- 4.9 (v3.1)
- Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H- CVSS v4
- 6.9
- Weakness
- CWE-502
- Assigned by
- 5d1c2695-1a31-4499-88ae-e847036fd7e3
Dates
- Published
- 2026-07-03
- Last modified
- 2026-08-28
- Sources
- NVD
Affected products
- Watchguard Fireware2025.1 - 2026.2.1, 12.5 - 12.5.19, 12.0 - 12.12.1
- Watchguard Firebox M295all versions
- Watchguard Firebox M395all versions
- Watchguard Firebox M495all versions
- Watchguard Firebox M595all versions
- Watchguard Firebox M695all versions
- Watchguard Firebox T115-Wall versions
- Watchguard Firebox T125all versions
- Watchguard Firebox T125-Wall versions
- Watchguard Firebox T145all versions
- Watchguard Firebox T145-Wall versions
- Watchguard Firebox T185all versions
As listed in the NVD configuration data. Not a statement about your estate.