Is CVE-2022-26318 in the CISA KEV catalog?

Yes. CVE-2022-26318 is on the CISA Known Exploited Vulnerabilities list, added 2022-03-25.

What is the CVSS severity of CVE-2022-26318?

CVE-2022-26318 has a CVSS v3 base score of 9.8 (CRITICAL).

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

CVE-2022-26318 has an EPSS score of 78.30% (100th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2022-26318

CRITICALCISA KEVEPSS 100th pctl

9.8

CVSS v3

NVD

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.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

78.30%probability of exploitation in 30 days

100thpercentile

Very high risk: more likely to be exploited than 100% of all known CVEs.

Known Exploited Vulnerability (CISA KEV)

WatchGuard Firebox and XTM Appliances Arbitrary Code Execution

On WatchGuard Firebox and XTM appliances, an unauthenticated user can execute arbitrary code.

Apply updates per vendor instructions.

Remediation due: 2022-04-15

References

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-11-13.