AUGUST 4, 2026
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Case File

CVE-2021-26356

HIGH · CVSS 7.4 EPSS 0.40%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2023-05-09 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 7.4. See the original NVD description below for full technical details.

CVE
CVE-2021-26356
Severity
HIGH
CVSS
7.4
EPSS
0.40%

Original NVD Description

A TOCTOU in ASP bootloader may allow an attacker to tamper with the SPI ROM following data read to memory potentially resulting in S3 data corruption and information disclosure.

Related CVEs

Other vulnerabilities affecting the same vendor(s)