Unauthenticated RCE in WatchGuard Fireware OS iked via IKEv2 CERT Payload Out-of-Bounds Write
CVE-2025-14733 is a critical out-of-bounds write vulnerability in the iked (Internet Key Exchange Daemon) process of WatchGuard Fireware OS, the operating system used by WatchGuard Firebox appliances. The flaw is triggered during IKEv2 negotiation by crafted IKE_AUTH requests containing oversized CERT payloads greater than 2000 bytes, causing memory to be written outside allocated bounds. The issue affects Mobile User VPN with IKEv2 and Branch Office VPN using IKEv2 when configured with a dynamic gateway peer; reporting also indicates some residual exposure may remain where static gateway peer configurations persist after prior dynamic-peer use. A remote attacker does not need authentication or user interaction to reach the vulnerable code path. WatchGuard and multiple downstream advisories report active exploitation attempts in the wild.
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Impact, mitigation & remediation
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
Impact
What an attacker gets, and what they’ve been doing with it.
Mitigation
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Remediation
Patch, then assume compromise.
Exploits
No valid public exploits. Mallory filtered out 5 candidates as fakes, detection scripts, or README-only repos.
All candidate exploits were filtered out by Mallory's validation.
Affected products & vendors
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
Recent activity
141 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Critical out-of-bounds write in WatchGuard Fireware OS (iked process) enabling remote unauthenticated arbitrary code execution; exploited in real-world attacks per snippet.
An out-of-bounds write vulnerability in WatchGuard Firebox's iked component. Exploitation has been observed in the wild.
A critical out-of-bounds write vulnerability in the iked process of WatchGuard Fireware OS, allowing remote, unauthenticated code execution via IKEv2 VPN services. This can lead to full device compromise and exposure of internal networks.
A remote code execution vulnerability in WatchGuard Firebox firewalls that is actively being targeted by attackers.
The version that knows your environment.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.