How severe is CVE-2025-1547?

CVE-2025-1547 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-1547 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (16th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-1547?

CVE-2025-1547 affects Watchguard Fireware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-1547?

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

Does CVE-2025-1547 have an EU (EUVD) identifier?

Yes. CVE-2025-1547 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-201291.

When was CVE-2025-1547 published?

CVE-2025-1547 was published on 2025-12-04 and last updated on 2026-06-17.

CVE-2025-1547

CVE-2025-1547 is a high-severity vulnerability in Watchguard Fireware with a CVSS 3.x base score of 7.2. 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-121.

Key facts

Severity: High (CVSS 3.x base score 7.2)
CVSS v4: 7.5
EPSS exploit prediction: 0% (16th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-201291
Weakness: CWE-121
Affected product: Watchguard Fireware
Published: 2025-12-04
Last modified: 2026-06-17

Description

A stack-based buffer overflow vulnerability [CWE-121] in WatchGuard Fireware OS's certificate request command could allow an authenticated privileged user to execute arbitrary code via specially crafted CLI commands.This issue affects Fireware OS: from 12.0 through 12.5.12+701324, from 12.6 through 12.11.2.

Frequently asked questions

What is CVE-2025-1547?: A stack-based buffer overflow vulnerability [CWE-121] in WatchGuard Fireware OS's certificate request command could allow an authenticated privileged user to execute arbitrary code via specially crafted CLI commands.This issue affects Fireware OS: from 12.0 through 12.5.12+701324, from 12.6 through 12.11.2.
How severe is CVE-2025-1547?: CVE-2025-1547 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-1547 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (16th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-1547?: CVE-2025-1547 affects Watchguard Fireware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-1547?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-1547 have an EU (EUVD) identifier?: Yes. CVE-2025-1547 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-201291.
When was CVE-2025-1547 published?: CVE-2025-1547 was published on 2025-12-04 and last updated on 2026-06-17.

References

https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2025-00013

Affected products (1)

cpe:2.3:o:watchguard:fireware:*:*:*:*:*:*:*:*

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