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CVE-2026-13050 is a high-severity out-of-bounds write vulnerability in the WatchGuard Fireware OS networkd process. According to the provided content, an authenticated privileged user can trigger the flaw by sending specially crafted requests to the Management Web UI, resulting in memory corruption in networkd and potential arbitrary code execution. The issue affects Fireware OS 11.8 through 11.12.4_Update1 inclusive, 12.0 through 12.12 inclusive, and 2025.1 through 2026.2 inclusive.
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What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
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No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
6 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
An out-of-bounds write vulnerability in the Fireware OS networkd process that can be exploited through crafted Management Web UI requests to achieve arbitrary code execution as a privileged administrator.
An out-of-bounds write vulnerability in the WatchGuard Fireware OS networkd process that could allow an authenticated privileged user to execute arbitrary code through specially crafted requests to the Management Web UI.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.