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ExploitedIn CISA KEVFix available

CVE-2022-26318

Exploitation confirmed. First attested on 2022-03-25 by CISA-ADP, CISA KEV, GCVE · kevintel.

  • Published2022-03-04
  • Fixed in12.7.2 · 12.5.9 · 12.1.3

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

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.

Timeline

dates in UTC
  1. 2022-03-0418:15CVE publishedNVD
  2. 2022-03-25Added to the CISA KEV catalogCISA KEV
  3. 2022-03-25Listed as exploited by GCVEGCVE
  4. 2022-03-25Exploitation first reportedCISA KEV
  5. 2025-01-2916:38SSVC exploitation set to activeCISA-ADP

Observed activity

isMalicious corpus · updated 2026-11-03 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2022-26318?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2022-26318?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Watchguard fireware
BranchAffectedFixed in
12.7≥ 12.7.0, < 12.7.212.7.2
12.5≥ 12.5, < 12.5.912.5.9
12.x≥ 12.0.0, < 12.1.312.1.3
12.1= 12.1.3no fix published
12.5= 12.5.9no fix published
12.7= 12.7.2no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

  1. Update Watchguard fireware to 12.7.2 · 12.5.9 · 12.1.3
  2. CISA’s required action: Apply updates per vendor instructions.due 2022-04-15

Advisories and patches

Detection

read 2026-11-02 22:42 UTC
Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
4 repositories, unverifiedmisterxid/watchguard_cve-2022-26318h3llk4t3/Watchguard-RCE-POC-CVE-2022-26318BabyTeam1024/CVE-2022-26318egilas/Watchguard-RCE-POC-CVE-2022-26318
PoC-in-GitHub
Metasploit modules
1 moduleexploit/linux/http/watchguard_firebox_unauth_rce_cve_2022_26318rank: goodModule metadata: Metasploit Framework, © Rapid7, Inc., BSD-3-Clause.
Metasploit Framework

CISA Known Exploited Vulnerability

Date Added
2022-03-25
Patch Due Date
2022-04-15
Ransomware Use
Unknown
Required Action
Apply updates per vendor instructions.

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2022-03-04
Last Modified
2026-06-17
NVD status
Analyzed
GitHub Advisory
GHSA-vvw7-v96v-gmxr

Frequently asked questions

What is 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.

Is CVE-2022-26318 actively exploited?

Yes. CVE-2022-26318 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2022-04-15.

What is the CVSS score for CVE-2022-26318?

CVE-2022-26318 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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Sources for this record