PT-2026-55322 · Watchguard · Fireware Os

Published 2026-07-02 · Updated 2026-07-03 · CVE-2026-13050

Positive Technologies (AI Summary)

CVSS v4.0

8.6

High

Base vector

AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Name of the Vulnerable Software and Affected Versions WatchGuard Fireware OS versions 11.8 through 11.12.4 Update1 WatchGuard Fireware OS versions 12.0 through 12.12 WatchGuard Fireware OS versions 2025.1 through 2026.2

Description An Out-of-bounds Write issue exists in the networkd process. This flaw allows an authenticated privileged user to execute arbitrary code by sending specially crafted requests to the Management Web UI. An Out-of-bounds Write occurs when a program writes data past the end of the intended buffer, potentially corrupting memory.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2026-13050

Affected Products

Fireware Os

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2026-13050 · Security Note
• https://watchguard.com/wgrd-psirt/advisory/wgsa-2026-00029 · Vendor Advisory
• https://twitter.com/CVEnew/status/2072867214072385893 · Twitter Post
• https://twitter.com/infoflowcloud/status/2072868208487334237 · Twitter Post
• https://twitter.com/dailytechonx/status/2073083224302014548 · Twitter Post