CVE-2026-13043
WatchGuard Endpoint Security
- WatchGuard Endpoint Security
- Critical
- CVSS 9.3
- EPSS 0.15%
- Fixed version listed
What to do
Fixed version listed
Affected products
| Product | Affected | Fixed in |
|---|---|---|
| WatchGuard Endpoint Security (Windows) | before 8.00.26.0012 | 8.00.26.0012 |
Advisories and fixes
- Vendor advisory psirt.watchguard.com
Scores and signals
- Exploitation
- No known exploitation
- Severity
- Critical, CVSS 9.3 (v4.0, scored by WatchGuard)
- EPSS
- 0.15% chance of exploitation in the next 30 days (EPSS from FIRST, as of Oct 25, 2026)
- CISA's SSVC decision points
- Exploitation: none. Automatable: no. Technical impact: total. As of Oct 1, 2026.
- Weakness
- CWE-306: CWE-306; CWE-798: CWE-798
- Vendor
- WatchGuard, Endpoint Security
Timeline
- First listed as critical by cve.now. Affected and fixed versions come from the CVE record, once one is published.