Is CVE-2025-12195 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2025-12195 being exploited in the wild.

How severe is CVE-2025-12195?

High severity, with a CVSS score of 7.2, published 4 December 2025.

Which products and versions are affected?

Watchguard Fireware OS 2025.1, 2025.0; 12.0 through 12.11.4; 11.0 through 11.12.4+541730 (fixed in 2025.1.3, 12.11.5, and patched 11.x versions).

Is there a fix for CVE-2025-12195?

A patch was published on 2025-12-04: Patches released (Fireware OS 2025.1.3, 12.11.5, 12.5.14) Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2025-12195 attacked?

It is attacked with local access, in a network appliance.

Am I affected by CVE-2025-12195?

Check whether you run Watchguard Fireware OS at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2025-12195: WatchGuard Fireware OS out-of-bounds write in CLI

CVE-2025-12195 · Severity: high · CVSS 7.2 · Published 2025-12-04

WatchGuard Fireware OS is the operating system running on the company's Firebox firewalls, which protect corporate networks by filtering and managing traffic. An authenticated administrator with privileged access can exploit a buffer overflow vulnerability in the IPSec configuration interface to execute arbitrary code, potentially compromising the firewall and the networks it protects.

Technologies: Watchguard Fireware OS. Vendors: Watchguard.

Quick answers

Is CVE-2025-12195 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2025-12195 being exploited in the wild.
How severe is CVE-2025-12195?: High severity, with a CVSS score of 7.2, published 4 December 2025.
Which products and versions are affected?: Watchguard Fireware OS 2025.1, 2025.0; 12.0 through 12.11.4; 11.0 through 11.12.4+541730 (fixed in 2025.1.3, 12.11.5, and patched 11.x versions).
Is there a fix for CVE-2025-12195?: A patch was published on 2025-12-04: Patches released (Fireware OS 2025.1.3, 12.11.5, 12.5.14) Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2025-12195 attacked?: It is attacked with local access, in a network appliance.
Am I affected by CVE-2025-12195?: Check whether you run Watchguard Fireware OS at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

An out-of-bounds write vulnerability (CWE-787) exists in the WatchGuard Fireware OS management CLI when processing IPSec configuration commands. The vulnerability is triggered via specially crafted IPSec configuration CLI commands and requires authentication with elevated (privileged user) credentials. Successful exploitation allows an authenticated administrator to execute arbitrary code with firewall privileges. Patches are available: Fireware OS 2025.1.3, 12.11.5, and 12.5.14 address this issue for their respective version lines.

Affected products

WatchGuard Fireware OS 2025.1, 2025.0; 12.0 through 12.11.4; 11.0 through 11.12.4+541730 (fixed in 2025.1.3, 12.11.5, and patched 11.x versions)

Timeline

2025-12-04: disclosed: CVE-2025-12195 published
2025-12-04: patched: Patches released (Fireware OS 2025.1.3, 12.11.5, 12.5.14)

References

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