CVE-2026-86574
Critical
Description
Heap-based Buffer Overflow Vulnerability in JP1/Base. This issue affects JP1/Base: from 11-00 before 12-50-54.
SeverityCritical
CVSS9.8
Exploit probability—
ProductJP1/Base
PublishedOct 27, 2026
First seenOct 27, 2026
Weakness typeCWE-122CWE-122
How to fix
Update
- Hitachi JP1/Base12-50-54 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Hitachi JP1/Base | 11-00 ≤ v < 12-50-54 | 12-50-54 |
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