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.
CVE-2026-13722
This high-severity CVE scores 8.6 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2%, top 86% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 8.6
- EG Score
- 8.6(medium)
- EPSS
- 14.0%
- KEV
- Not listed
Published
July 3, 2026
Last Modified
July 7, 2026
Advisory Details (1)
Auto-updated Jul 6, 2026WatchGuard Firebox Firmware Image Validation Bypass in WatchGuard Fireware OS | WatchGuard Technologies
https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2026-00022Vendor Advisories for CVE-2026-13722(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 13× in last 7d / 13× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-07 03:41 UTCEG score recompute
- 2026-07-07 03:41 UTCGHSA enrichment
- 2026-07-06 16:27 UTCEPSS rescore
- 2026-07-06 15:37 UTCEG score recompute▲ 8.60
- 2026-07-06 15:37 UTCGHSA enrichment
- 2026-07-06 15:36 UTCMITRE cvelistV5CVSS v3 → 8.6 · CVSS v4 → 8.6
- 2026-07-06 06:35 UTCEG score recompute
- 2026-07-06 06:35 UTCGHSA enrichment
- 2026-07-06 02:23 UTCEPSS rescore
- 2026-07-05 02:30 UTCEPSS rescore
- 2026-07-05 02:30 UTCEPSS rescore
- 2026-07-03 01:07 UTCEG score recompute
- 2026-07-03 01:06 UTCGHSA enrichment
Frequently asked(5)
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Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-13722
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