CVE-2026-10718

Local memory corruption via extra deallocate descriptor

Published Jun 2, 2026 · Updated Jun 2, 2026

Out-of-bounds write in openSeaChest 26.03.0 allows local users with administrative privileges to corrupt memory during NVMe Trim/Unmap. The opensea-operations path writes a 16-byte LBA deallocation-range descriptor beyond its allocated buffer. An NVMe device and a privileged local invocation are required, and no code execution or service interruption is reported.

CVSS severity4.6
Medium
EPSS probability0.11%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds write in openSeaChest 26.03.0 allows local users with administrative privileges to corrupt memory during NVMe Trim/Unmap. The opensea-operations path writes a 16-byte LBA deallocation-range descriptor beyond its allocated buffer. An NVMe device and a privileged local invocation are required, and no code execution or service interruption is reported.

The record

CVE
CVE-2026-10718
Published
Jun 2, 2026
Updated
Jun 2, 2026
Vendor
Seagate Technology
Product
openSeaChest
Classifications
CWE-787, CAPEC-100
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Jun 2, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 2, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=26.03.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Seagate Technology · openSeaChestversion=0 <=26.03.0

Published CVSS scores

4.6Seagate TechnologyCVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-787Out-of-bounds Write
CAPEC-100Overflow Buffers

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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