CVE-2025-14733

Critical9.8 Published on Dec 19, 2025

An Out-of-bounds Write vulnerability in the WatchGuard Fireware OS iked process may allow a remote unauthenticated attacker to execute arbitrary code. This vulnerability affects both the mobile user VPN with IKEv2 and the branch office VPN using IKEv2 when configured with a dynamic gateway peer. If the Firebox was previously configured with the mobile user VPN with IKEv2 or a branch office VPN using IKEv2 to a dynamic gateway peer, and both of those configurations have since been deleted, that Firebox may still be vulnerable if a branch office VPN to a static gateway peer is still configured.

Actively exploited

  • In the CISA exploited-vulnerabilities catalogue since Dec 19, 2025
  • US federal agencies must remediate it by Dec 26, 2025 (BOD 22-01)
  • Attacked on the day of disclosure
  • Used in ransomware campaigns

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Source: CISA KEV · May 1, 2026 Jan 20, 2026 Jan 13, 2026 Jan 5, 2026 Dec 30, 2025 Dec 19, 2025

CVSS score9.8 / 10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness type (CWE)CWE-787
Vendorswatchguard

Affected products

VendorsProductVersions
watchguardfireware< 12.5.15
watchguardfirebox t15—
watchguardfirebox t35—
watchguardfirebox m270—
watchguardfirebox m290—
watchguardfirebox m370—
watchguardfirebox m390—
watchguardfirebox m440—
watchguardfirebox m4600—
watchguardfirebox m470—
watchguardfirebox m4800—
watchguardfirebox m5600—
watchguardfirebox m570—
watchguardfirebox m5800—
watchguardfirebox m590—
watchguardfirebox m670—
watchguardfirebox m690—
watchguardfirebox nv5—
watchguardfirebox t20—
watchguardfirebox t25—
watchguardfirebox t40—
watchguardfirebox t45—
watchguardfirebox t55—
watchguardfirebox t70—
watchguardfirebox t80—

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This product uses the NVD API but is not endorsed or certified by the NVD.

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