How severe is CVE-2022-31789?

CVE-2022-31789 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-31789 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (71st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-31789?

CVE-2022-31789 primarily affects Watchguard Fireware. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-31789?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2022-31789 published?

CVE-2022-31789 was published on 2022-09-06 and last updated on 2026-06-17.

CVE-2022-31789

CVE-2022-31789 is a critical-severity vulnerability in Watchguard Fireware with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-190.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 2% (71st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-190
Affected product: Watchguard Fireware
Published: 2022-09-06
Last modified: 2026-06-17

Description

An integer overflow in WatchGuard Firebox and XTM appliances allows an unauthenticated remote attacker to trigger a buffer overflow and potentially execute arbitrary code by sending a malicious request to exposed management ports. This is fixed in Fireware OS 12.8.1, 12.5.10, and 12.1.4.

Frequently asked questions

What is CVE-2022-31789?: An integer overflow in WatchGuard Firebox and XTM appliances allows an unauthenticated remote attacker to trigger a buffer overflow and potentially execute arbitrary code by sending a malicious request to exposed management ports. This is fixed in Fireware OS 12.8.1, 12.5.10, and 12.1.4.
How severe is CVE-2022-31789?: CVE-2022-31789 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-31789 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (71st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-31789?: CVE-2022-31789 primarily affects Watchguard Fireware. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2022-31789?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2022-31789 published?: CVE-2022-31789 was published on 2022-09-06 and last updated on 2026-06-17.

References

https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2022-00015

Affected products (9)

cpe:2.3:o:watchguard:fireware:*:*:*:*:*:*:*:*
cpe:2.3:o:watchguard:fireware:12.6.1:u1:*:*:*:*:*:*
cpe:2.3:o:watchguard:fireware:12.6.1:u3:*:*:*:*:*:*
cpe:2.3:o:watchguard:fireware:12.6.3:*:*:*:*:*:*:*
cpe:2.3:o:watchguard:fireware:12.6.4:*:*:*:*:*:*:*
cpe:2.3:o:watchguard:fireware:12.7.0:u1:*:*:*:*:*:*
cpe:2.3:o:watchguard:fireware:12.7.1:*:*:*:*:*:*:*
cpe:2.3:o:watchguard:fireware:12.7.2:u2:*:*:*:*:*:*
cpe:2.3:o:watchguard:fireware:12.8.0:u1:*:*:*:*:*:*

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