7.5

CVE-2025-1547: watchguard fireware Stack-based Buffer Overflow

CVSS: 7.5v4.0HighModified
Published 04-12-2025Last modified 10-08-2026
Open JSON

Vulnerability summary

CVE-2025-1547 is a high (CVSS 7.5) Stack-based Buffer Overflow vulnerability in watchguard fireware. EPSS estimates a 0.35% chance of exploitation in the next 30 days, higher than 27.5% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v4.0 (CVE.org)
EPSS score
0.35%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 04-12-2025
    PublishedVulnerability first disclosed.
  2. 10-08-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

0.35%

Chance of exploitation in the next 30 days

Percentile

28%

Versus all other CVEs

30-day change

0.00 pp

From 0.35% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.35%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Watchguard2 products
  • fireware≥ 12.0.0, < 12.11.3 | ≥ 12.5, < 12.5.13
  • fireware os≥ 12.0, ≤ 12.11.3 | ≥ 12.0, < 12.5.13

1 vendor · 2 products

References

2 links