Name: CVE-2021-26402: Out-of-bounds Write
Creator: Rapid7
Published: 2023-01-10T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2021-26402, CWE-787, CVSS 7.1, EPSS 0.0018

Insufficient bounds checking in ASP (AMD Secure Processor) firmware while handling BIOS mailbox commands, may allow an attacker to write partially-controlled data out-of-bounds to SMM or SEV-ES regions which may lead to a potential loss of integrity and availability.

CVSS Details

CVSS 3.1 Base Score: 7.1
CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Dell Poweredge Dsa2023002	—	Upgrade Dell PowerEdge to the latest version	Jan 15, 2026	Jan 11, 2023

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CVSS Details

Covered by Rapid7

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