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High 8.6Published Jul 2, 2026
CVE-2026-13383WatchGuard Firebox ikestubd Out of Bounds Write Vulnerability
Updated under an hour ago ()
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It affects WatchGuard Fireware OS and 1 other product. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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Free account, 1 product
An Out-of-bounds Write vulnerability in WatchGuard Fireware OS ikestubd process could allow an authenticated privileged user to execute arbitrary code via a specially crafted requests to the Management Web UI.
- CVSS
- 8.6 HIGH (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- Weakness (CWE)
- CWE-787
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- WatchGuard
- NVD analysis
- Modified
- Record last updated
- Aug 27, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
WatchGuard Fireware OS watchguard:fireware_os (from the name) | from 2025.1 before 2026.2.1; from 12.1 before 12.12.1 | CNA record |
watchguard fireware watchguard:fireware | from 12.1 before 12.12.1; from 2025.1 before 2026.2.1; from 12.5 through 12.5.18 | NVD |
References
- https://psirt.watchguard.com/CVE-2026-13383vendor-advisory
- https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2026-00020vendor-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.