CVE-2022-26318

CRITICALNVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score elevated to 9.8 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2022-03-25), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 9.8 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, nvd
Trending — 4 sources updated this weekExploited in the wild
9.8
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS: 78%CVSS: 9.8Exploit: NoneExposed: 0

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

On WatchGuard Firebox and XTM appliances, an unauthenticated user can execute arbitrary code, aka FBX-22786. This vulnerability impacts Fireware OS before 12.7.2_U2, 12.x before 12.1.3_U8, and 12.2.x through 12.5.x before 12.5.9_U2.

CVSS v3
9.8
EG Score
9.8(high)
EG Risk
99(Act)
EG Risk 99/100SSVC: Act

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
Severity98% × 45%
Exploitation100% × 40%
Automatability100% × 15%
Action: Fix now — active exploitation, automatable, high impact.
EPSS
99.5%
KEV
⚠ Exploited

Published

March 4, 2022

Last Modified

November 13, 2025

Advisory Details (2)

Auto-updated May 26, 2026
⚠️ Active exploitation confirmed. Patch available. Sources: cisa.
cisa Patch Available🔴 Active Exploitation

Known Exploited Vulnerabilities Catalog | CISA

Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-26318
generic

Fireware Release Notes

https://www.watchguard.com/support/release-notes/fireware/12/en-US/EN_ReleaseNotes_Fireware_12_7_2/index.html#Fireware/en-US/resolved_issues.html

Data Freshness Timeline

(refreshed 39× in last 7d / 211× 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 404 total refreshes for this CVE.

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

Publicly available exploits

(4 references)

Working exploit code is in the public domain (1 Metasploit module) (3 GitHub PoCs). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Metasploitexploit/linux/http/watchguard_firebox_unauth_rce_cve_2022_26318✓ verified
    First seen Aug 29, 2022

    WatchGuard XTM Firebox Unauthenticated Remote Command Execution

    Open source ↗
  • GitHub PoCBabyTeam1024/CVE-2022-26318
    First seen May 21, 2022
    Open source ↗
  • GitHub PoCh3llk4t3/Watchguard-RCE-POC-CVE-2022-26318
    First seen Apr 18, 2022

    Watchguard RCE POC CVE-2022-26318

    Open source ↗
  • GitHub PoCmisterxid/watchguard_cve-2022-26318
    First seen Mar 28, 2022
    Open source ↗

Frequently asked(6)

What is CVE-2022-26318?
CVE-2022-26318 is a critical vulnerability published on March 4, 2022. On WatchGuard Firebox and XTM appliances, an unauthenticated user can execute arbitrary code, aka FBX-22786. This vulnerability impacts Fireware OS before 12.7.2U2, 12.x before 12.1.3U8, and 12.2.x through 12.5.x before 12.5.9_U2.
When was CVE-2022-26318 disclosed?
CVE-2022-26318 was first published in the National Vulnerability Database on March 4, 2022, with the most recent update on November 13, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2022-26318 actively exploited?
Yes. CISA added CVE-2022-26318 to the Known Exploited Vulnerabilities catalog on March 25, 2022, affecting WatchGuard Firebox and XTM Appliances. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2022-26318?
CVE-2022-26318 has a CVSS v3 base score of 9.8 (NVD).
Which products are affected by CVE-2022-26318?
CVE-2022-26318 affects WatchGuard Firebox and XTM Appliances. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.
How do I remediate CVE-2022-26318?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-26318, 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.

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