CVE-2026-13728

MEDIUMNVD 4.44.4—
EchelonGraph scoreMEDIUM confidence

Score 4.4 from GitHub Security Advisory published 2026-07-03. NVD baseline CVSS 4.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
4.4EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.4Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

In exception circumstances, WatchGuard Fireware OS on a FireCluster may use a hard-coded encryption key to encrypt saved credentials for Access Portal resources.

This vulnerability does not affect devices that do not support the Access Portal feature or standalone Fireboxes not deployed in a FireCluster.

CVSS v3
4.4
EG Score
4.4(medium)
EG Risk
20(Track)
EG Risk 20/100SSVC: 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 computed
Severity44% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
14%
KEV
Not listed

Published

July 3, 2026

Last Modified

August 28, 2026

Advisory Details (1)

Auto-updated Jul 6, 2026
No patch confirmed yet.
generic

WatchGuard Firebox Hardcoded Fallback Encryption Key in Access Portal Resource Credential Database | WatchGuard Technologies

https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2026-00025

Vendor Advisories for CVE-2026-13728(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 5× in last 7d / 42× 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 158 total refreshes for this CVE.

  1. 2026-09-20 20:15 UTCEPSS rescore
  2. 2026-09-18 19:27 UTCEPSS rescore
  3. 2026-09-18 06:13 UTCEG score recompute
  4. 2026-09-18 06:13 UTCGHSA enrichment
  5. 2026-09-16 05:14 UTCEPSS rescore
  6. 2026-09-13 16:46 UTCEPSS rescore
  7. 2026-09-13 13:01 UTCEG score recompute
  8. 2026-09-13 13:01 UTCGHSA enrichment
  9. 2026-09-12 15:00 UTCEPSS rescore
  10. 2026-09-12 14:14 UTCEG score recompute
  11. 2026-09-12 14:14 UTCGHSA enrichment
  12. 2026-09-11 14:52 UTCEPSS rescore
  13. 2026-09-11 09:36 UTCEPSS rescore
  14. 2026-09-10 09:34 UTCEPSS rescore
  15. 2026-09-08 22:00 UTCEPSS rescore
  16. 2026-09-07 16:01 UTCEPSS rescore
  17. 2026-09-06 13:47 UTCEPSS rescore
  18. 2026-09-05 23:50 UTCEG score recompute
  19. 2026-09-05 23:50 UTCGHSA enrichment
  20. 2026-09-02 14:11 UTCEPSS rescore
  21. 2026-09-01 13:53 UTCEPSS rescore
  22. 2026-09-01 04:39 UTCEPSS rescore
  23. 2026-08-30 19:17 UTCEPSS rescore
  24. 2026-08-30 11:21 UTCEG score recompute
  25. 2026-08-30 11:21 UTCGHSA enrichment
Show 75 more
  1. 2026-08-30 01:21 UTCEPSS rescore
  2. 2026-08-28 21:40 UTCEPSS rescore
  3. 2026-08-28 00:39 UTCGHSA enrichment
  4. 2026-08-27 23:29 UTCGHSA enrichment
  5. 2026-08-27 22:13 UTCEG score recompute
  6. 2026-08-27 22:13 UTCGHSA enrichment
  7. 2026-08-27 14:24 UTCEPSS rescore
  8. 2026-08-25 13:48 UTCEPSS rescore
  9. 2026-08-25 03:20 UTCEG score recompute
  10. 2026-08-25 03:20 UTCGHSA enrichment
  11. 2026-08-24 04:33 UTCGHSA enrichment
  12. 2026-08-23 05:46 UTCEG score recompute
  13. 2026-08-23 05:46 UTCGHSA enrichment
  14. 2026-08-23 00:19 UTCEPSS rescore
  15. 2026-08-22 06:58 UTCEG score recompute
  16. 2026-08-22 06:58 UTCGHSA enrichment
  17. 2026-08-21 23:48 UTCEPSS rescore
  18. 2026-08-21 08:10 UTCEG score recompute
  19. 2026-08-21 08:10 UTCGHSA enrichment
  20. 2026-08-20 22:55 UTCEPSS rescore
  21. 2026-08-20 09:22 UTCEG score recompute
  22. 2026-08-20 09:22 UTCGHSA enrichment
  23. 2026-08-19 17:03 UTCEPSS rescore
  24. 2026-08-19 10:35 UTCEG score recompute
  25. 2026-08-19 10:35 UTCGHSA enrichment
  26. 2026-08-18 13:48 UTCEPSS rescore
  27. 2026-08-18 11:46 UTCEG score recompute
  28. 2026-08-18 11:46 UTCGHSA enrichment
  29. 2026-08-17 12:26 UTCEG score recompute
  30. 2026-08-17 12:26 UTCGHSA enrichment
  31. 2026-08-16 14:56 UTCEPSS rescore
  32. 2026-08-16 13:35 UTCEG score recompute
  33. 2026-08-16 13:35 UTCGHSA enrichment
  34. 2026-08-16 02:14 UTCEPSS rescore
  35. 2026-08-15 14:48 UTCEG score recompute
  36. 2026-08-15 14:48 UTCGHSA enrichment
  37. 2026-08-15 01:30 UTCEPSS rescore
  38. 2026-08-14 16:01 UTCEG score recompute
  39. 2026-08-14 16:01 UTCGHSA enrichment
  40. 2026-08-13 22:00 UTCEPSS rescore
  41. 2026-08-13 17:13 UTCGHSA enrichment
  42. 2026-08-12 18:07 UTCEG score recompute
  43. 2026-08-12 18:06 UTCGHSA enrichment
  44. 2026-08-12 13:50 UTCEPSS rescore
  45. 2026-08-11 19:19 UTCEG score recompute
  46. 2026-08-11 19:19 UTCGHSA enrichment
  47. 2026-08-11 13:42 UTCEPSS rescore
  48. 2026-08-10 23:59 UTCEPSS rescore
  49. 2026-08-10 20:31 UTCGHSA enrichment
  50. 2026-08-10 19:20 UTCGHSA enrichment
  51. 2026-08-10 00:57 UTCEG score recompute
  52. 2026-08-10 00:57 UTCGHSA enrichment
  53. 2026-08-09 13:46 UTCEPSS rescore
  54. 2026-08-09 02:10 UTCEG score recompute
  55. 2026-08-09 02:10 UTCGHSA enrichment
  56. 2026-08-08 16:37 UTCEPSS rescore
  57. 2026-08-08 03:23 UTCEG score recompute
  58. 2026-08-08 03:23 UTCGHSA enrichment
  59. 2026-08-07 04:36 UTCEG score recompute
  60. 2026-08-07 04:36 UTCGHSA enrichment
  61. 2026-08-06 13:46 UTCEPSS rescore
  62. 2026-08-06 05:49 UTCEG score recompute
  63. 2026-08-06 05:49 UTCGHSA enrichment
  64. 2026-08-05 19:17 UTCEPSS rescore
  65. 2026-08-05 07:02 UTCEG score recompute
  66. 2026-08-05 07:02 UTCGHSA enrichment
  67. 2026-08-04 15:09 UTCEPSS rescore
  68. 2026-08-04 10:38 UTCEPSS rescore
  69. 2026-08-04 05:39 UTCEG score recompute
  70. 2026-08-04 05:39 UTCGHSA enrichment
  71. 2026-08-03 10:35 UTCEPSS rescore
  72. 2026-08-03 06:52 UTCGHSA enrichment
  73. 2026-08-02 07:37 UTCEG score recompute
  74. 2026-08-02 07:37 UTCGHSA enrichment
  75. 2026-08-02 02:26 UTCEPSS rescore

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-13728?
CVE-2026-13728 is a medium vulnerability published on July 3, 2026. In exception circumstances, WatchGuard Fireware OS on a FireCluster may use a hard-coded encryption key to encrypt saved credentials for Access Portal resources. This vulnerability does not affect devices that do not support the Access Portal feature or standalone Fireboxes not deployed in a…
When was CVE-2026-13728 disclosed?
CVE-2026-13728 was first published in the National Vulnerability Database on July 3, 2026, with the most recent update on August 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-13728 actively exploited?
CVE-2026-13728 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 85.8% of all scored CVEs.
What is the CVSS score of CVE-2026-13728?
CVE-2026-13728 has a CVSS v3 base score of 4.4 (NVD).
How do I remediate CVE-2026-13728?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-13728, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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