HIGHCVSS 8.8Vulnerability
CVE-2026-8247
An Out-of-bounds Write vulnerability in WatchGuard Fireware OS may allow an unauthenticated attacker on the same local network segment to execute arbitrary code. This vulnerability affects Fireware OS 11.0 up to and including 11.12.4_Update1, 12.0 up to and including 12.12 and 2025.1 up to and including 2026.2.
Properties
- severity
- HIGH
- cvss_score
- 8.8
- cvss_severity
- HIGH
- epss_score
- 0.00383
- retrieved_at
- 2026-09-25T21:32:20+00:00
- last_source
- FIRST EPSS
- score
- 8.8
- cve_id
- CVE-2026-8247
- cvss_vector
- CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- signal_observed_at
- 2026-09-11T17:55:57+00:00
- vector
- CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- published_at
- 2026-07-03T00:16:52.773
- last_modified
- 2026-08-28T00:18:22.920
- epss_percentile
- 0.29611
Related Entities (45)
AFFECTS_PRODUCT (41)
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HAS_WEAKNESS (2)
→[Weakness]Out-of-bounds Write
→[Weakness]Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
ENRICHED_BY (1)
→[Source]FIRST EPSS
DESCRIBED_BY (1)
→[Source]NVD
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