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CVE-2022-26318

96
FAUCET Score

CVE-2022-26318 is a critical unauthenticated remote code execution vulnerability affecting WatchGuard Firebox and XTM appliances running specific Fireware OS versions. With a CVSS score of 9.8, this flaw allows an attacker to execute arbitrary code without authentication, leading to complete compromise of the affected device. This vulnerability is actively exploited in the wild, as evidenced by its inclusion in CISA's KEV catalog and the availability of a Metasploit module. Significant community discussion and media coverage highlight its severe impact, including reports of Russian APT groups leveraging it against Western firms.

Impacted Technologies

VendorProductVersion(s)CPE
>= 12.0.0, < 12.1.3CPE matchmatch criteria
cpe:2.3:o:watchguard:fireware:*:*:*:*:*:*:*:*
>= 12.5, < 12.5.9CPE matchmatch criteria
cpe:2.3:o:watchguard:fireware:*:*:*:*:*:*:*:*
>= 12.7.0, < 12.7.2CPE matchmatch criteria
cpe:2.3:o:watchguard:fireware:*:*:*:*:*:*:*:*
12.1.3CPE matchmatch criteria
cpe:2.3:o:watchguard:fireware:12.1.3:*:*:*:*:*:*:*
12.1.3CPE matchmatch criteria
cpe:2.3:o:watchguard:fireware:12.1.3:u1:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
78.30%
Probability of exploitation in next 30 days
EPSS Percentile
99.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
Added to KEV · Mar 25, 2022
Metasploit: WatchGuard XTM Firebox Unauthenticated Remote Command Execution · Aug 29, 2022
This CVE's current EPSS score of 0.7830 is in the 98th percentile among its peer group of 36,835 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

cisa.gov / known-exploited-vulnerabilities-catalog
US Government Resource
watchguard.com / support/release-notes/fireware/12/en-US/EN_ReleaseNotes_Fireware_12_7_2/index.html
Release NotesVendor Advisory