Out-of-Bounds Write in openSeaChest Trim/Unmap Operation

Publication date: 2026-06-02

Last updated on: 2026-06-02

Assigner: Seagate Technology

Description

Out of bounds write in openSeaChest’s Trim/Unmap operation in Seagate’s openSeaChest v26.03.0 on all supported platforms allows for writing extra memory describing a range of LBAs to deallocate 16 bytes outside of the allocated space when running this operation.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-06-02

Last Modified

2026-06-02

Generated

2026-07-14

AI Q&A

2026-06-03

EPSS Evaluated

2026-07-12

NVD

CVE-2026-10718

EUVD

EUVD-2026-34043

Affected Vendors & Products

Vendor	Product	Version / Range
seagate	openseachest	26.03.0

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-787	The product writes data past the end, or before the beginning, of the intended buffer.

Attack-Flow Graph

Executive Summary

This vulnerability is an out of bounds write issue in the Trim/Unmap operation of Seagate's openSeaChest software version 26.03.0. Specifically, when this operation runs, it writes 16 bytes beyond the allocated memory space that describes a range of Logical Block Addresses (LBAs) to deallocate.

Impact Analysis

The out of bounds write can lead to memory corruption, which may cause unexpected behavior such as crashes or data corruption. Since the vulnerability involves writing outside allocated memory, it could potentially be exploited to affect the stability or integrity of the system running openSeaChest.

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