UpHeron
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Servers and applications

CVE-2022-26318

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.

Actively exploited: CISA added it to its Known Exploited Vulnerabilities catalog on 25 Mar 2022.

Severity
Critical 9.8
Published
4 Mar 2022
Last changed
17 Jun 2026
Added to UpHeron
3 Nov 2026
Fixed in
12.1.3, 12.5.9, 12.7.2
Sources
NVD

Affected software

SoftwareAffected versions
WatchGuard Fireware OSServers and applications · cpe:o:watchguard:fireware
  • Version 12.7.2-u1
  • From 12.7.0 before 12.7.2
  • Version 12.5.9-u1
  • From 12.5 before 12.5.9
All 13 release lines
  • From 12.0.0 before 12.1.3
  • Version 12.1.3
  • Version 12.1.3-u1
  • Version 12.1.3-u2
  • Version 12.1.3-u3
  • Version 12.1.3-u4
  • Version 12.1.3-u5
  • Version 12.1.3-u6
  • Version 12.1.3-u7
  • From 12.5 before 12.5.9
  • Version 12.5.9-u1
  • From 12.7.0 before 12.7.2
  • Version 12.7.2-u1

Known exploited

CISA name
WatchGuard Firebox and XTM Appliances Arbitrary Code Execution
Required action
Apply updates per vendor instructions.
Due for US agencies
15 Apr 2022
Used in ransomware
Not known

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2022-26318
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2022-26318