CVE-2025-59321

Default TPM PCR Policy Allows Unauthorized Unseal in CryptoPro Secure Disk for Bitlocker

Published Aug 12, 2026 CVSS 3.1 · 9.8 Critical EPSS < 1% KEV · Not listed
Description
CPSD CryptoPro Secure Disk for Bitlocker before v7.7.4 contains a default TPM PCR policy that fails to consider the system boot state. This allows the TPM to be unsealed via an unintended execution path or from another hardware platform.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Title Default TPM PCR Policy Allows Unauthorized Unseal in CryptoPro Secure Disk for Bitlocker
Type Values Removed Values Added
Title CPSD CryptoPro Secure Disk TPM PCR Policy Allowing Unauthorized TPM Unseal
Weaknesses CWE-290
Type Values Removed Values Added
Weaknesses CWE-1188
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Cpsd
Cpsd cryptopro Securedisk For Bitlocker
Vendors & Products Cpsd
Cpsd cryptopro Securedisk For Bitlocker
Type Values Removed Values Added
Title CPSD CryptoPro Secure Disk TPM PCR Policy Allowing Unauthorized TPM Unseal
Weaknesses CWE-290
Type Values Removed Values Added
Description CPSD CryptoPro Secure Disk for Bitlocker before v7.7.4 contains a default TPM PCR policy that fails to consider the system boot state. This allows the TPM to be unsealed via an unintended execution path or from another hardware platform.
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Aug 13, 2026, 3:41 PM
Reserved
Sep 12, 2025, 12:00 AM
Status
Deferred
Published
Aug 12, 2026, 3:17 PM
Modified
Sep 29, 2026, 11:10 AM