Technology · Watchguard
Watchguard Fireware OS vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 76 vulnerabilities in Watchguard Fireware OS: 0 in the last 7 days and 43 in the last 90 days, 1 of them critical and 1 exploited in the wild. The most recent, CVE-2026-93866, was published on 27 October 2026. 17 vulnerabilities in the last four weeks, up 21% on the four before (14).
- Last 7 days
- 0
- Last 90 days
- 43
- Critical, all time
- 1
- Exploited in the wild
- 1
About Watchguard Fireware OS
Operating system for Watchguard network security appliances.
Latest Watchguard Fireware OS vulnerabilities
- CVE-2026-93866: WatchGuard Fireware OS integer overflow in WebSocket Access Portalinfo
- CVE-2026-93865: WatchGuard Fireware OS authentication bypass in FireCluster daemoninfo
- CVE-2026-93864: WatchGuard Fireware OS arbitrary file overwrite via link followinginfo
- CVE-2026-93862: WatchGuard Fireware OS out-of-bounds read in FireCluster Syncinfo
- CVE-2026-93857: WatchGuard Fireware OS stack buffer overflow in SIP proxyinfo
- CVE-2026-93434: WatchGuard Fireware OS XPath injection in SSH authenticationinfo
- CVE-2026-90465: WatchGuard Fireware OS missing authentication in FireCluster Syncinfo
- CVE-2026-90464: WatchGuard Fireware OS path traversal in diagnostic commandinfo
- CVE-2026-90442: WatchGuard Fireware OS stack buffer overflow in certdinfo
- CVE-2026-82332: WatchGuard Fireware OS improper authentication in AuthPoint MFAinfo
- CVE-2026-113881: WatchGuard Fireware OS stack buffer overflow in VPN Network Access Enforcementinfo
- CVE-2026-112710: WatchGuard Fireware OS heap overflow in AD authentication serviceinfo
- CVE-2026-112709: WatchGuard Fireware OS heap buffer overflow in AD authenticationinfo
- CVE-2026-111107: WatchGuard Fireware OS NULL pointer dereference in management interfaceinfo
- CVE-2026-104381: WatchGuard Fireware OS missing authentication in FireCluster state syncinfo
- CVE-2026-103594: WatchGuard Fireware OS stack buffer overflow in WireGuard configurationinfo
- CVE-2026-103593: WatchGuard Fireware OS stack buffer overflow in logging serviceinfo
- CVE-2026-86134: WatchGuard Fireware OS NULL pointer dereference in authenticationinfo
- CVE-2026-90441: WatchGuard Fireware OS missing authorization in wgagent management APIinfo
- CVE-2026-86136: WatchGuard Fireware OS missing authorization in wgagent management APIinfo
- CVE-2026-86133: WatchGuard Fireware OS integer underflow in IKE daemoninfo
- CVE-2026-86132: WatchGuard Fireware OS integer underflow in IKEv2 daemoninfo
- CVE-2026-86131: WatchGuard Fireware OS code injection in BOVPN over TLS clientinfo
- CVE-2026-86128: WatchGuard Fireware OS NULL pointer dereference in NetFlow IPv6 processinginfo
- CVE-2026-86105: WatchGuard Fireware OS improper authorization in Access Portal reverse proxyinfo
Most severe Watchguard Fireware OS vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2025-9242: WatchGuard Fireware OS out-of-bounds write in iked processcriticalexploited in the wildCVSS 9.8EPSS 73.5%
- CVE-2025-11838: WatchGuard Fireware OS memory corruption DoS in IKEv2 VPNhighCVSS 7.5EPSS 0.5%
- CVE-2025-1545: WatchGuard Fireware XPath injection in Web CGIhighCVSS 7.5EPSS 0.5%
- CVE-2025-12195: WatchGuard Fireware OS out-of-bounds write in CLIhighCVSS 7.2EPSS 0.7%
- CVE-2025-12196: WatchGuard Fireware OS out-of-bounds write in CLI ping commandhighCVSS 7.2EPSS 0.6%
- CVE-2025-12026: WatchGuard Fireware OS out-of-bounds write in certdhighCVSS 7.2EPSS 0.4%
- CVE-2025-1547: WatchGuard Fireware OS stack overflow in certificate request commandhighCVSS 7.2EPSS 0.4%
- CVE-2026-4266: WatchGuard Fireware OS insecure deserialization in Access PortalmediumCVSS 6.7EPSS 0.4%
- CVE-2026-4315: WatchGuard Fireware OS CSRF in WebUImediumCVSS 6.5EPSS 0.2%
- CVE-2026-3343: WatchGuard Fireware OS reflected XSS in Web UImediumCVSS 6.1EPSS 0.3%
Vulnerabilities per week
17 vulnerabilities in the last four weeks, up 21% on the four before (14). The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 17 Aug 2026 | 0 | 0 | |
| 24 Aug 2026 | 12 | 0 | |
| 31 Aug 2026 | 0 | 0 | |
| 7 Sep 2026 | 0 | 0 | |
| 14 Sep 2026 | 0 | 0 | |
| 21 Sep 2026 | 0 | 0 | |
| 28 Sep 2026 | 14 | 0 | |
| 5 Oct 2026 | 0 | 0 | |
| 12 Oct 2026 | 0 | 0 | |
| 19 Oct 2026 | 0 | 0 | |
| 26 Oct 2026 | 17 | 0 | |
| 2 Nov 2026 | 0 | 0 | |
| 9 Nov 2026 | 0 | 0 |
Embed a badge
A live badge for a README, a status page or an internal wiki: how many Watchguard Fireware OS vulnerabilities were published in the last 7 days and how many of them are critical, refreshed hourly.
[](https://junglewise.ai/threats/technologies/fireware-os)<a href="https://junglewise.ai/threats/technologies/fireware-os"><img src="https://junglewise.ai/threats/technologies/fireware-os/badge.svg" alt="Watchguard Fireware OS vulnerabilities" /></a>How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/technologies/fireware-os.json, and this page as text at https://junglewise.ai/threats/technologies/fireware-os.md, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "Watchguard Fireware OS vulnerabilities", https://junglewise.ai/threats/technologies/fireware-os, 12 November 2026.