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.
CVE-2026-13722
Score 7.2 from GitHub Security Advisory (severity: HIGH) published 2026-07-03. NVD baseline CVSS 7.2; sources differ by 0.0.
- 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
- 7.2
- EG Score
- 7.2(medium)
- EG Risk
- 33(Track)EG Risk 33/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity72% × 45%Exploitation0% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 0%
- EPSS %ILE
- 19%
- KEV
- Not listed
Published
July 3, 2026
Last Modified
August 14, 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 21× in last 7d / 120× 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.
Showing the most recent 100 of 180 total refreshes for this CVE.
- 2026-08-25 13:48 UTCEPSS rescore
- 2026-08-25 13:39 UTCGHSA enrichment
- 2026-08-24 20:55 UTCEG score recompute
- 2026-08-24 20:55 UTCGHSA enrichment
- 2026-08-24 07:08 UTCGHSA enrichment
- 2026-08-23 19:12 UTCGHSA enrichment
- 2026-08-23 07:16 UTCEG score recompute
- 2026-08-23 07:16 UTCGHSA enrichment
- 2026-08-23 00:19 UTCEPSS rescore
- 2026-08-22 19:20 UTCGHSA enrichment
- 2026-08-22 06:02 UTCEG score recompute
- 2026-08-22 06:02 UTCGHSA enrichment
- 2026-08-21 23:48 UTCEPSS rescore
- 2026-08-21 17:14 UTCGHSA enrichment
- 2026-08-21 04:26 UTCEG score recompute
- 2026-08-21 04:26 UTCGHSA enrichment
- 2026-08-20 22:55 UTCEPSS rescore
- 2026-08-20 15:54 UTCGHSA enrichment
- 2026-08-20 03:59 UTCEG score recompute
- 2026-08-20 03:59 UTCGHSA enrichment
- 2026-08-19 17:03 UTCEPSS rescore
- 2026-08-19 09:18 UTCGHSA enrichment
- 2026-08-18 20:53 UTCEG score recompute
- 2026-08-18 20:52 UTCGHSA enrichment
- 2026-08-18 13:48 UTCEPSS rescore
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- 2026-08-18 04:28 UTCEG score recompute
- 2026-08-18 04:28 UTCGHSA enrichment
- 2026-08-17 12:38 UTCGHSA enrichment
- 2026-08-17 00:42 UTCEG score recompute
- 2026-08-17 00:42 UTCGHSA enrichment
- 2026-08-16 14:56 UTCEPSS rescore
- 2026-08-16 12:46 UTCEG score recompute
- 2026-08-16 12:46 UTCGHSA enrichment
- 2026-08-16 02:14 UTCEPSS rescore
- 2026-08-16 00:51 UTCGHSA enrichment
- 2026-08-15 12:56 UTCEG score recompute
- 2026-08-15 12:56 UTCGHSA enrichment
- 2026-08-15 01:30 UTCEPSS rescore
- 2026-08-15 01:01 UTCGHSA enrichment
- 2026-08-14 13:06 UTCGHSA enrichment
- 2026-08-14 08:11 UTCEG score recompute
- 2026-08-14 08:11 UTCGHSA enrichment
- 2026-08-13 22:00 UTCEPSS rescore
- 2026-08-13 20:15 UTCEG score recompute▼ 1.40
- 2026-08-13 20:15 UTCGHSA enrichment
- 2026-08-13 20:14 UTCNVD updateCVSS v3 → 7.2
- 2026-08-13 19:31 UTCGHSA enrichment
- 2026-08-13 07:36 UTCGHSA enrichment
- 2026-08-12 19:11 UTCEG score recompute
- 2026-08-12 19:11 UTCGHSA enrichment
- 2026-08-12 13:50 UTCEPSS rescore
- 2026-08-12 07:15 UTCGHSA enrichment
- 2026-08-11 19:19 UTCEG score recompute
- 2026-08-11 19:19 UTCGHSA enrichment
- 2026-08-11 13:42 UTCEPSS rescore
- 2026-08-11 07:23 UTCEG score recompute
- 2026-08-11 07:23 UTCGHSA enrichment
- 2026-08-10 23:59 UTCEPSS rescore
- 2026-08-10 19:28 UTCEG score recompute
- 2026-08-10 19:28 UTCGHSA enrichment
- 2026-08-10 18:55 UTCEG score recompute
- 2026-08-10 18:55 UTCGHSA enrichment
- 2026-08-10 18:26 UTCEG score recompute
- 2026-08-10 18:26 UTCGHSA enrichment
- 2026-08-10 17:56 UTCEG score recompute
- 2026-08-10 17:56 UTCGHSA enrichment
- 2026-08-10 15:21 UTCGHSA enrichment
- 2026-08-10 03:25 UTCGHSA enrichment
- 2026-08-09 15:30 UTCEG score recompute
- 2026-08-09 15:30 UTCGHSA enrichment
- 2026-08-09 13:46 UTCEPSS rescore
- 2026-08-09 03:35 UTCEG score recompute
- 2026-08-09 03:35 UTCGHSA enrichment
- 2026-08-08 16:37 UTCEPSS rescore
- 2026-08-08 15:40 UTCGHSA enrichment
- 2026-08-08 03:45 UTCEG score recompute
- 2026-08-08 03:45 UTCGHSA enrichment
- 2026-08-07 15:49 UTCGHSA enrichment
- 2026-08-07 03:54 UTCGHSA enrichment
- 2026-08-06 15:59 UTCEG score recompute
- 2026-08-06 15:59 UTCGHSA enrichment
- 2026-08-06 13:46 UTCEPSS rescore
- 2026-08-06 04:03 UTCEG score recompute
- 2026-08-06 04:03 UTCGHSA enrichment
- 2026-08-05 19:17 UTCEPSS rescore
- 2026-08-05 16:08 UTCGHSA enrichment
- 2026-08-05 02:03 UTCEG score recompute
- 2026-08-05 02:03 UTCGHSA enrichment
- 2026-08-04 15:09 UTCEPSS rescore
- 2026-08-04 14:06 UTCEG score recompute
- 2026-08-04 14:06 UTCGHSA enrichment
- 2026-08-04 10:38 UTCEPSS rescore
- 2026-08-04 00:55 UTCGHSA enrichment
- 2026-08-03 13:00 UTCEG score recompute
- 2026-08-03 13:00 UTCGHSA enrichment
- 2026-08-03 10:35 UTCEPSS rescore
- 2026-08-03 00:44 UTCGHSA enrichment
- 2026-08-02 12:48 UTCEG score recompute
- 2026-08-02 12:48 UTCGHSA enrichment
- 2026-08-02 02:26 UTCEPSS rescore
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Frequently asked(5)
What is CVE-2026-13722?
When was CVE-2026-13722 disclosed?
Is CVE-2026-13722 actively exploited?
What is the CVSS score of CVE-2026-13722?
How do I remediate CVE-2026-13722?
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-13722
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