CVE-2026-8247

EPSS 0.27%
Veröffentlicht 02.07.2026 23:07:16
Zuletzt bearbeitet 14.08.2026 12:53:37
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WatchGuard Firebox admd Out of Bounds Write Vulnerability

An Out-of-bounds Write vulnerability in WatchGuard Fireware OS may allow an unauthenticated attacker on the same local network segment to execute arbitrary code.




This vulnerability affects Fireware OS 11.0 up to and including 11.12.4_Update1, 12.0 up to and including 12.12 and 2025.1 up to and including 2026.2.

Betroffene Produkte Warnungen 0 Metriken 3 CWE 2 Referenzen 5

NVD 6 VulnDex Vulnerability Enrichment 0

Daten sind bereitgestellt durch National Vulnerability Database (NVD)

Watchguard ≫ Fireware Version >= 11.0.0 < 11.12.4

Watchguard ≫ Fireware Version11.12.4 Update-

Watchguard ≫ Fireware Version11.12.4 Updateu1

Watchguard ≫ Fireware Version >= 12.5 < 12.5.19

Watchguard ≫ Firebox T15 Version-
Watchguard ≫ Firebox T35 Version-

Watchguard ≫ Fireware Version >= 2025.1 < 2026.2.1

   Watchguard ≫ Firebox M295 Version-
   Watchguard ≫ Firebox M395 Version-
   Watchguard ≫ Firebox M495 Version-
   Watchguard ≫ Firebox M595 Version-
   Watchguard ≫ Firebox M695 Version-
   Watchguard ≫ Firebox T115-w Version-
   Watchguard ≫ Firebox T125 Version-
   Watchguard ≫ Firebox T125-w Version-
   Watchguard ≫ Firebox T145 Version-
   Watchguard ≫ Firebox T145-w Version-
   Watchguard ≫ Firebox T185 Version-

Watchguard ≫ Fireware Version >= 12.0 < 12.12.1

   Watchguard ≫ Firebox Cloud Version-
   Watchguard ≫ Firebox M270 Version-
   Watchguard ≫ Firebox M290 Version-
   Watchguard ≫ Firebox M370 Version-
   Watchguard ≫ Firebox M390 Version-
   Watchguard ≫ Firebox M440 Version-
   Watchguard ≫ Firebox M4600 Version-
   Watchguard ≫ Firebox M470 Version-
   Watchguard ≫ Firebox M4800 Version-
   Watchguard ≫ Firebox M5600 Version-
   Watchguard ≫ Firebox M570 Version-
   Watchguard ≫ Firebox M5800 Version-
   Watchguard ≫ Firebox M590 Version-
   Watchguard ≫ Firebox M670 Version-
   Watchguard ≫ Firebox M690 Version-
   Watchguard ≫ Firebox Nv5 Version-
   Watchguard ≫ Firebox T20 Version-
   Watchguard ≫ Firebox T25 Version-
   Watchguard ≫ Firebox T40 Version-
   Watchguard ≫ Firebox T45 Version-
   Watchguard ≫ Firebox T55 Version-
   Watchguard ≫ Firebox T70 Version-
   Watchguard ≫ Firebox T80 Version-
   Watchguard ≫ Firebox T85 Version-
   Watchguard ≫ Fireboxv Version-

Zu dieser CVE wurde keine Warnung gefunden.

EPSS Metriken
Typ	Quelle	Score	Percentile
EPSS	FIRST.org	0.27%	0.189

CVSS Metriken
Quelle	Base Score	Exploit Score	Impact Score	Vector String
NIST	8.8	2.8	5.9	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
5d1c2695-1a31-4499-88ae-e847036fd7e3	7.7	0	0	CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer.

CWE-787 Out-of-bounds Write

The product writes data past the end, or before the beginning, of the intended buffer.

https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2026-00026

Vendor Advisory

https://psirt.watchguard.com/CVE-2026-8247

Broken Link

https://nvd.nist.gov/vuln/detail/CVE-2026-8247

CVE Source (NVD)

https://cveawg.mitre.org/api/cve/CVE-2026-8247

CVE Source (JSON)

https://euvd.enisa.europa.eu/vulnerability/CVE-2026-8247

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CVE-2026-8247