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Apexward Pulse
Type Vulnerability

WatchGuard · Memory corruption

WatchGuard Firebox Out of Bounds Write Vulnerability

1 sourceCVE-2025-14733

At a glance

High
Suggested 24-hour window, counted from the last update
ActiveConfirmed in-the-wild exploitation
Evidence-weighted, not popularity
Signal

Actively exploited in the wild — prioritise confirming exposure.

Why High

High rather than Critical: exposure is scored at a default because we cannot see your systems or suppliers. If you run or depend on WatchGuard Fireware, treat it as Critical.

Briefing

  • Do not treat uncorroborated claims as confirmed breaches.

Questions to ask IT

  • Do we run WatchGuard Fireware, and which versions?
  • Is any of it reachable from the internet?
  • Have we checked whether it has already been used against us?
  • If it is still not patched, what mitigation is in place, and what is holding the fix up?

Next steps

  1. Confirm exposure and remediation status for affected products

Summary

  • WatchGuard Fireware OS iked process contains an out of bounds write vulnerability in the OS iked process. This vulnerability may allow a remote unauthenticated attacker to execute arbitrary code and affects both the mobile user VPN with IKEv2 and the branch office VPN using IKEv2 when configured with a dynamic gateway peer.
  • CVE-2025-14733 is confirmed as exploited in the wild (US known-exploited catalogue)
  • CVE-2025-14733 has an estimated ~21.8% chance of attack in 30 days (97.4th percentile) as of 2026-08-04 — probability signal, not confirmed exploitation
  • Authoritative catalogues report active exploitation of this vulnerability.

Why this matters in the UK

  • Known-exploited catalogue reports exploitation in the wild

Products and services involved

6 reports

Part of An out-of-bounds write vulnerability in the CGI program of Zyxel GS1900-24E firmware versions through 2.90(AAHK.2)C0 cou

All 6 reports in this story

Pulse

Last checked 4d ago · Recheck overdue since 5 Nov 2026, 14:08 UK time

Signal
4 Nov 2026, 14:08 UK time · 4d ago

CISA marks known .

Listed on the — prioritise confirming exposure and patching.

EscalationDe-escalationCritical / liveWhat these mean
Drag to pan · Ctrl / ⌘ + scroll or pinch to zoom11 events

Sources

How we know

Statements extracted from sources. Higher confidence means stronger corroboration.

  • ConfirmedHeadline90% confidence

    WatchGuard Firebox Out of Bounds Write Vulnerability

  • ConfirmedSummary fact75% confidence

    WatchGuard Fireware OS iked process contains an out of bounds write vulnerability in the OS iked process. This vulnerability may allow a remote unauthenticated attacker to execute arbitrary code and affects both the mobile user VPN with IKEv2 and the branch office VPN using IKEv2 when configured with a dynamic gateway peer.

  • ConfirmedCVE identifier95% confidence

    Event involves CVE-2025-14733

  • ConfirmedKnown-exploited catalogue98% confidence

    CVE-2025-14733 is confirmed as exploited in the wild (US known-exploited catalogue)

  • ConfirmedEstimated attack likelihood95% confidence

    CVE-2025-14733 has an estimated ~21.8% chance of attack in 30 days (97.4th percentile) as of 2026-08-04 — probability signal, not confirmed exploitation