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.
Conclusion & alert: CVE-2025-1547 is rated Low Risk (33/100): CVSS High severity, with low exploitation likelihood (EPSS 0.03%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-05-02 | 0.06% | 0.03% | -0.02% |
| 2 | 2026-04-05 | 0.04% | 0.06% | +0.01% |
| 3 | 2026-03-04 | — | 0.04% | — |
Full EPSS history (9 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.5 | 4.0 | HIGH |
|
— | — | 5d1c2695-1a31-4499-88ae-e847036fd7e3 |
| 7.2 | 3.1 | HIGH |
|
1.2 | 5.9 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| watchguard | fireware | >= 12.0.0, < 12.11.3 | cpe:2.3:o:watchguard:fireware:*:*:*:*:*:*:*:* |
| watchguard | fireware | >= 12.5, < 12.5.13 | cpe:2.3:o:watchguard:fireware:*:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2025-00013 | Vendor Advisory |