CVE-2025-13940

mediumpriority · track · 22EPSS 0.001 · 2 %ileDEEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.13% (2nd) EPSS

CVSS 5.5 · medium

Is it mine?

12 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-26

An Expected Behavior Violation [CWE-440] vulnerability in WatchGuard Fireware OS may allow an attacker to bypass the Fireware OS boot time system integrity check and prevent the Firebox from shutting down in the event of a system integrity check failure. The on-demand system integrity check in the Fireware Web UI will correctly show a failed system integrity check message in the event of a failure.

cvss

Technical severity, 0–10. One row per scoring source.

6.7

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.15.5mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:Nprimary · NVD / NIST USexploitability 1.8 · impact 3.6

v3.14.4mediumAV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:Nsecondary · FSTEC (BDU) RU

v4.06.7mediumCVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:Nsecondary · ENISA EU

v4.06.7mediumCVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:N/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:Xsecondary

v4.04mediumCVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/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:Xsecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-440USCWE-440US

affected products (12)

Products and version ranges known to be affected.

WatchGuard Firebox <12.11.5all versionscert_bundDE
WatchGuard Firebox <12.5.14all versionscert_bundDE
WatchGuard Firebox <2025.1.3all versionscert_bundDE
WatchGuard Firebox< 12.11.5cert_bundDE
WatchGuard Firebox< 12.5.14cert_bundDE
WatchGuard Firebox< 2025.1.3cert_bundDE
WatchGuard Fireware OS12.8.1 → 12.11.5enisa_euvdEU
WatchGuard Fireware OS2025.1 → 2025.1.3enisa_euvdEU
Watchguard Technologies Inc. Fireware OS12.8.1 → 12.11.4fstec_bduRU
Watchguard Technologies Inc. Fireware OS2025.1 → 2025.1.2fstec_bduRU
watchguard fireware12.8.1 → 12.11.5nvdUScpe:2.3:o:watchguard:fireware:*:*:*:*:*:*:*:*
watchguard fireware2025.1 → 2025.1.3nvdUScpe:2.3:o:watchguard:fireware:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2025-2749WatchGuard Firebox: Mehrere SchwachstellenDeutsch2025-12-04csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in WatchGuard Firebox ausnutzen, um einen Denial of Service Angriff durchzuführen, um Informationen offenzulegen, um einen Cross-Site Scripting Angriff durchzuführen, um Sicherheitsvorkehrungen zu umgehen, und um beliebigen Programmcode auszuführen.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund nvd NVD CVE.org MITRE

published 2025-12-04modified 2026-09-25

references (5)

External citations — patches, advisories, analysis.

scry

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