Threat Investigation
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CVE-2025-59320

Medium

Description

CPSD CryptoPro Secure Disk for Bitlocker before v7.7.4 stores TPM2.0 secrets in a serialized format within unused disk sectors. An unauthenticated attacker with physical access to the system disk can recover this information and craft an environment to unseal the TPM.

SeverityMedium
CVSS4.6
Exploit probability—
ProductSecure Disk for Bitlocker
PublishedAug 12, 2026
First seenAug 12, 2026
Weakness typeCWE-922CWE-922

How to fix

Update
  • CryptoPro Secure Disk for Bitlocker7.7.4 or later

Affected products

ProductAffected versionsFixed in
CryptoPro Secure Disk for BitlockerNo range specified7.7.4

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