Vulnerability · Published Jun 2, 2026 · Assigned by Seagate
CVE-2026-10718Open Seachest/Seachest NVMe Trim (Deallocate) Vulnerability
Medium 4.6
In plain English
A medium-severity out-of-bounds write in openSeaChest. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 1% of all known vulnerabilities).
Severity (CVSS 4.0)4.6Medium
Exploit odds (30 days)0.1%top 98.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| openSeaChest | 0 – through 26.03.0 |
Weakness: CWE-787 · Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/S:N/AU:Y/R:U/V:D/RE:L/U:Green