Threats / WatchGuard / CVE-2025-14733
CVE-2025-14733
· EUVD no mirror located
· GCVE no mirror located
Verified 2026-06-22
WatchGuard Firebox vulnerability
WatchGuard Firebox contains an out-of-bounds write vulnerability in the iked process affecting IKEv2 VPN configurations, allowing remote unauthenticated code execution.
Verdict
Today item — known-exploited.
A remote attacker can exploit an out-of-bounds write flaw in WatchGuard Firebox iked to achieve arbitrary code execution without authentication. Active exploitation has been observed. This affects both mobile user and branch office VPN deployments using IKEv2 with dynamic gateway peers.
01
Is it exploitable?
— the evidence, ranked above the scoreReported exploitation
8 independent public reports of in-the-wild exploitation are cataloged.Distinct reporting sources (vendor, incident response, government); open them for the underlying claims.
Exploited in the wild
Listed in the CISA Known Exploited Vulnerabilities catalog (added 2025-12-19).
Probability (EPSS)
EPSS 0.17469 — modeled likelihood of exploitation activity.EPSS is a daily-changing model output — open the source for today's value.
Severity / affected
Affected: WatchGuard, Firebox. Confirm exact fixed builds in the vendor advisory.
Weakness (CWE)
Mapped to CWE-787 Out-of-bounds Write — weakness family: Memory safety.CWE assignment from the public NVD record; the weakness class drives how the flaw is exploited.
02
Who’s exploiting it?
— attribution turns risk into urgencyAttribution not established
No confirmed (advisory-backed) threat-actor attribution is established for this record. Absence of a named actor is not absence of compromise — see Coverage & confidence.
03
Why it matters
— the attack path, told twice: adversary, then board1
Front door — unauthenticated access narrative 1
Attacker
I craft a malicious IKEv2 packet targeting the iked process on an exposed Firebox appliance.
Business
The firewall perimeter is compromised, enabling lateral movement into protected networks.
2
Keys to the kingdom — privilege/identity takeover narrative 2
Attacker
I trigger an out-of-bounds write condition to overwrite memory and inject executable code.
Business
Arbitrary code execution on the security appliance grants full control of traffic inspection and routing.
3
Lateral reach — past segmentation narrative 3
Attacker
I establish persistence and exfiltrate VPN credentials and encrypted traffic keys.
Business
Remote access infrastructure is compromised, exposing all connected mobile and branch users.
04
What to do
— defensible action- Remediate per the vendor advisory — confirm the fixed build for your version and verify exposure.1
Say it to the boardA vulnerability with this evidence profile is a defensible budget line, not a backlog ticket — fund the change against the proof above.
05
Coverage & confidence
— what we know, and what we don’tEstablished (cited)
Coverage gaps — stated, not hidden
Disclosure & credit2
Catalogued by WatchGuardCNA
Credited with finding itNo finder named in the public CVE record — the work behind this find is unattributed.