本ページは watchguard fireware_os に影響する公開済み CVE（NVD の CPE 経由で関連付け）を列挙します。各行に深刻度指標・概要・公開日が含まれます。
| CVE | 概要 | ソース | CVSS 最大値 | EPSS（%） | 公開 | 更新 |
|---|---|---|---|---|---|---|
| CVE-2026-8247 | An Out-of-bounds Write vulnerability in WatchGuard Fireware OS may allow an unauthenticated attacker on the same local network segment to execute arbitrary code. This vulnerability affects Fireware OS 11.0 up to and including 11.12.4_Update1, 12.0 up to and including 12.12 and 2025.1 up to and including 2026.2. | 5d1c2695-1a31-4499-88ae-e847036fd7e3 | 7.7 | — | 2026-07-02 | 2026-07-02 |
| CVE-2026-13728 | In exception circumstances, WatchGuard Fireware OS on a FireCluster may use a hard-coded encryption key to encrypt saved credentials for Access Portal resources. This vulnerability affects Fireware OS 12.1 up to and including 12.12 and 2025.1 up to and including 2026.2. This vulnerability does not affect devices that do not support the Access Portal feature or standalone Fireboxes not deployed in a FireCluster. | 5d1c2695-1a31-4499-88ae-e847036fd7e3 | 5.9 | — | 2026-07-02 | 2026-07-02 |
| CVE-2026-13722 | WatchGuard Fireware OS contains a firmware validation bypass when processing a backup image via the backup/restore feature. An authenticated administrator can exploit this vulnerability to install a tampered firmware image.This vulnerability affects Fireware OS 11.0 up to and including 11.12.4_Update1, 12.0 up to and including 12.12 and 2025.1 up to and including 2025.6.2. | 5d1c2695-1a31-4499-88ae-e847036fd7e3 | 8.6 | — | 2026-07-02 | 2026-07-02 |
| CVE-2026-13384 | An Out-of-bounds Write vulnerability in WatchGuard Fireware OS wgagent process could allow an authenticated privileged user to execute arbitrary code via a specially crafted requests to the Management Web UI.This vulnerability affects Fireware OS 12.1 up to and including 12.12 and 2025.1 up to and including 2026.2. | 5d1c2695-1a31-4499-88ae-e847036fd7e3 | 8.6 | — | 2026-07-02 | 2026-07-02 |
| CVE-2026-13383 | An Out-of-bounds Write vulnerability in WatchGuard Fireware OS ikestubd process could allow an authenticated privileged user to execute arbitrary code via a specially crafted requests to the Management Web UI.This vulnerability affects Fireware OS 12.1 up to and including 12.12 and 2025.1 up to and including 2026.2. | 5d1c2695-1a31-4499-88ae-e847036fd7e3 | 8.6 | — | 2026-07-02 | 2026-07-02 |
| CVE-2026-13377 | Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in WatchGuard Fireware OS SIP Proxy module allows Stored XSS. This vulnerability is an additional unmitigated attack path for CVE-2025-6947. This issue affects Fireware OS 12.0 up to and including 12.12, 12.5 up to and including 12.5.18, and 2025.1 up to and including 2026.2. | 5d1c2695-1a31-4499-88ae-e847036fd7e3 | 4.8 | — | 2026-07-02 | 2026-07-02 |
| CVE-2026-13376 | Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in WatchGuard Fireware OS spamBlocker module allows Stored XSS. This vulnerability is an additional unmitigated attack path for CVE-2025-1071. This issue affects Fireware OS 12.0 up to and including 12.12, 12.5 up to and including 12.5.18, and 2025.1 up to and including 2026.2. | 5d1c2695-1a31-4499-88ae-e847036fd7e3 | 4.8 | — | 2026-07-02 | 2026-07-02 |
| CVE-2026-13375 | Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in WatchGuard Fireware OS (Autotask Technology Integration module) allows Stored XSS. This vulnerability is an additional unmitigated attack path for CVE-2025-13938. This issue affects Fireware OS 12.4 up to and including 12.12, 12.5 up to and including 12.5.18, and 2025.1 up to and including 2026.2. | 5d1c2695-1a31-4499-88ae-e847036fd7e3 | 4.8 | — | 2026-07-02 | 2026-07-02 |
| CVE-2026-13374 | Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in WatchGuard Fireware OS (ConnectWise Technology Integration module) allows Stored XSS. This vulnerability is an additional unmitigated attack path for CVE-2025-13937. This issue affects Fireware OS 12.4 up to and including 12.12, 12.5 up to and including 12.5.18, and 2025.1 up to and including 2026.2. | 5d1c2695-1a31-4499-88ae-e847036fd7e3 | 4.8 | — | 2026-07-02 | 2026-07-02 |
| CVE-2026-13373 | Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in WatchGuard Fireware OS (Tigerpaw Technology Integration module) allows Stored XSS. This vulnerability is an additional unmitigated attack path for CVE-2025-13936. This issue affects Fireware OS 12.4 up to and including 12.12, 12.5 up to and including 12.5.18, and 2025.1 up to and including 2026.2. | 5d1c2695-1a31-4499-88ae-e847036fd7e3 | 4.8 | — | 2026-07-02 | 2026-07-02 |
| CVE-2026-13371 | An authenticated administrator can trigger a denial-of-service condition in the Fireware Management Web UI by sending malformed or crafted data to the put_data endpoint, which performs unsafe deserialization of the attacker-supplied input. | 5d1c2695-1a31-4499-88ae-e847036fd7e3 | 6.9 | — | 2026-07-02 | 2026-07-02 |
| CVE-2026-13368 | WatchGuard Fireware OS contains a race condition leading to a use-after-free vulnerability in LDAP authentication for the Mobile User VPN with IKEv2. A remote unauthenticated attacker could exploit this vulnerability to execute arbitrary code in the context of the iked process on Fireboxes that have a Mobile VPN with IKEv2 configured to use an external LDAP authentication server. This vulnerability affects Fireware OS 11.0 up to and including 11.12.4_Update1, 12.0 up to and including 12.12 and | 5d1c2695-1a31-4499-88ae-e847036fd7e3 | 9.2 | — | 2026-07-02 | 2026-07-02 |
| CVE-2026-13084 | A null pointer dereference vulnerability in WatchGuard Fireware OS may allow a remote unauthenticated attacker to create a denial-of-service (DoS) condition by sending specially crafted IKEv2 messages. This vulnerability affects both the Mobile User VPN with IKEv2 and the Branch Office VPN using IKEv2 when configured with a dynamic gateway peer. This vulnerability affects Fireware OS 11.10.2 up to and including 11.12.4_Update1, 12.0 up to and including 12.12 and 2025.1 up to and including 2026. | 5d1c2695-1a31-4499-88ae-e847036fd7e3 | 8.7 | — | 2026-07-02 | 2026-07-02 |
| CVE-2026-13079 | A local privilege escalation vulnerability in the WatchGuard Mobile VPN with SSL client for Windows allows a local attacker to escalate their privileges to NT AUTHORITY\SYSTEM on the machine where the client is installed. This issue affects the Mobile VPN with SSL client for Windows up to and including 2026.2. | 5d1c2695-1a31-4499-88ae-e847036fd7e3 | 7.3 | — | 2026-07-02 | 2026-07-02 |
| CVE-2026-13054 | A path traversal vulnerability in the WatchGuard Fireware OS Management Web UI allows a privileged authenticated attacker to write arbitrary files on the Firebox's filesystem. This vulnerability affects Fireware OS 11.0 up to and including 11.12.4_Update1, 12.0 up to and including 12.12 and 2025.1 up to and including 2026.2. | 5d1c2695-1a31-4499-88ae-e847036fd7e3 | 8.6 | — | 2026-07-02 | 2026-07-02 |
| CVE-2026-13053 | An Out-of-bounds Write vulnerability in WatchGuard Fireware OS's CLI could allow an authenticated privileged user to execute arbitrary code via a specially crafted CLI command. This vulnerability affects Fireware OS 11.0 up to and including 11.12.4_Update1, 12.0 up to and including 12.12 and 2025.1 up to and including 2026.2. | 5d1c2695-1a31-4499-88ae-e847036fd7e3 | 8.6 | — | 2026-07-02 | 2026-07-02 |
| CVE-2026-13050 | An Out-of-bounds Write vulnerability in WatchGuard Fireware OS networkd process could allow an authenticated privileged user to execute arbitrary code via a specially crafted requests to the Management Web UI.This vulnerability affects Fireware OS 11.8 up to and including 11.12.4_Update1, 12.0 up to and including 12.12 and 2025.1 up to and including 2026.2. | 5d1c2695-1a31-4499-88ae-e847036fd7e3 | 8.6 | — | 2026-07-02 | 2026-07-02 |
| CVE-2026-3987 | A path traversal vulnerability in the Fireware OS Web UI on WatchGuard Firebox systems may allow a privileged authenticated remote attacker to execute arbitrary code in the context of an elevated system process.This issue affects Fireware OS 12.6.1 up to and including 12.11.8 and 2025.1 up to and including 2026.1.2. | 5d1c2695-1a31-4499-88ae-e847036fd7e3 | 8.6 | 0.59% | 2026-04-01 | 2026-06-17 |
| CVE-2026-4315 | A Cross-Site Request Forgery (CSRF) vulnerability in the WatchGuard Fireware OS WebUI could allow a remote attacker to trigger a denial-of-service (DoS) condition in the Fireware Web UI by convincing an authenticated administrator into visiting a malicious web page.This issue affects Fireware OS: 11.8 through 11.12.4+541730, 12.0 through 12.11.8, and 2025.1 through 2026.1.2. | 5d1c2695-1a31-4499-88ae-e847036fd7e3 | 7.1 | 0.22% | 2026-03-30 | 2026-06-17 |
| CVE-2026-4266 | An Insecure Deserialization vulnerability in WatchGuard Fireware OS allows an attacker that has obtained write access to the local filesystem through another vulnerability to execute arbitrary code in the context of the portald user.This issue affects Fireware OS: 12.1 through 12.11.8 and 2025.1 through 2026.1.2. Note, this vulnerability does not affect Firebox platforms that do not support the Access Portal feature, including the T-15 and T-35. | 5d1c2695-1a31-4499-88ae-e847036fd7e3 | 8.4 | 0.29% | 2026-03-30 | 2026-06-17 |