CVE•Published 2025-12-04•Modified 2026-08-10•0 articles on news•5 live references•NVD data

CVE-2025-11838Watchguard · Fireware

Vulnerability data via NVD (ingested)

CVSS v3.1

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS percentile

Exploit Prediction Scoring System · top 63% of all CVEs

Weaknesses (CWE)

CWE-763Release of Invalid Pointer or Reference

Description

A memory corruption vulnerability in WatchGuard Fireware OS may allow an unauthenticated attacker to trigger a Denial of Service (DoS) condition in the Mobile User VPN with IKEv2 and the Branch Office VPN using IKEv2 when configured with a dynamic gateway peer.

Timeline

Published 2025-12-04

Modified 2026-08-10

External references

NVD MITRE Exploit-DB GitHub PoC VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

Shodan · vuln tag0 hosts

vuln:CVE-2025-11838

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · OS

os:"Fireware"

Hosts Shodan identified as running Fireware.

More intel sources (5)

Shodan report

vuln:CVE-2025-11838

Country / ASN / product breakdown for the vuln query.

Censys

vulnerabilities.cve_id: CVE-2025-11838