--- title: "CVE-2025-9242: WatchGuard Firebox iked Out of Bounds… | CubePath" description: "An Out-of-bounds Write vulnerability in the WatchGuard Fireware OS iked process may allow a remote unauthenticated attacker to execute arbitrary code…" language: en source: https://cubepath.com/security/cve/CVE-2025-9242 --- # CVE-2025-9242: WatchGuard Firebox iked Out of Bounds… | CubePath ## Description 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. Official description from the CVE record, published by WatchGuard. Copyright © 1999-2026 The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CVE license. [View the record on cve.org](https://www.cve.org/CVERecord?id=CVE-2025-9242) ## Key data ### CVSS 4.0 Critical 9.3 Score published by WatchGuard in the CVE record. CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N | Metric | Value | What it means | | ----------------------------------- | ------- | --------------------------------------------------------------------------------------------------------------- | | Attack vector | Network | The vulnerable component can be reached over a network, possibly from the Internet. | | Attack complexity | Low | No measurable action is needed to get around the system's built-in security controls. The attack is repeatable. | | Attack requirements | None | The attack works without any special deployment or execution conditions. | | Privileges required | None | No account or privileges are needed. | | User interaction | None | No action from any user is needed. | | Vulnerable system: confidentiality | High | Serious or total effect on the secrecy of data. | | Vulnerable system: integrity | High | Serious or total effect on the trustworthiness of data. | | Vulnerable system: availability | High | Serious or total effect on availability. | | Subsequent systems: confidentiality | None | No effect on other systems' data secrecy. | | Subsequent systems: integrity | None | No effect on other systems' data trustworthiness. | | Subsequent systems: availability | None | No effect on other systems' availability. | CVSS is owned and managed by FIRST.Org, Inc. (FIRST) and is used by permission. Each CVSS score on this site is shown together with its vector string, as published in the CVE record by the source named next to it. Learn more at [first.org/cvss](https://www.first.org/cvss/) . ### EPSS Exploit Prediction Scoring System by FIRST: an estimate of the probability that exploitation activity will be observed in the next 30 days. Score 0.92219 (92.2% probability) Percentile 99.8% Scores of Nov 10, 2026 Model v2026.06.15 ### CISA Known Exploited Vulnerabilities This CVE is listed in the CISA KEV catalog. Name in the catalog WatchGuard Firebox Out-of-Bounds Write Vulnerability Added to the catalog Nov 12, 2025 Federal due date Dec 3, 2025 ### CISA assessment as of Nov 11, 2025 Stakeholder-Specific Vulnerability Categorization (SSVC) decision points added by CISA. Exploitation Recorded by CISA as active Automatable yes Technical impact total ### Weakness (CWE) CWE catalog version 5.0. CWE names: Copyright © 2006-2026, The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CWE license. - [CWE-787](https://cwe.mitre.org/data/definitions/787.html) Out-of-bounds Write ## Affected products Products listed in the CVE record, as the CNA published them. - WatchGuard Fireware OS - affected: 11.0 up to 11.12.4+541730 - affected: 12.0 up to before 12.11.4 - affected: 2025.0 up to before 2025.1.1 - WatchGuard Fireware OS - affected: 12.0 up to before 12.3.1+722811 - WatchGuard Fireware OS - affected: 12.0 up to before 12.5.13 ## References Links listed in the CVE record. They lead to other sites, which CubePath does not control. - [psirt.watchguard.com/CVE-2025-9242](https://psirt.watchguard.com/CVE-2025-9242) vendor-advisory - [watchguard.com/wgrd-psirt/advisory/wgsa-2025-00015](https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2025-00015) vendor-advisory ## Timeline 1. ID reserved Aug 20, 2025 2. Record published Sep 17, 2025 3. Added to CISA KEV Nov 12, 2025 4. Record last updated Aug 10, 2026 ## Look up another CVE ## About CubePath CubePath is a cloud provider with data centers in Europe and the United States. It offers VPS, bare metal servers and DDoS protection. [Cloud VPS](https://cubepath.com/vps) [DDoS protection](https://cubepath.com/ddos-protection) Data from the CVE Program (MITRE), CISA KEV and FIRST EPSS. CVSS is owned by FIRST and used by permission. Not affiliated with or endorsed by MITRE, CISA or FIRST. Data as of Nov 10, 2026, 19:14 UTC. [Sources and licenses](https://cubepath.com/security/cve/legal)