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.
History

Thu, 13 Aug 2026 00:00:00 +0000

Type Values Removed Values Added
First Time appeared Cpsd
Cpsd cryptopro Secure Disk
Vendors & Products Cpsd
Cpsd cryptopro Secure Disk

Wed, 12 Aug 2026 22:45:00 +0000

Type Values Removed Values Added
Title TPM Secret Exposure via Unused Disk Sectors in CryptoPro Secure Disk for Bitlocker

Wed, 12 Aug 2026 20:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-922
Metrics cvssV3_1

{'score': 4.6, 'vector': 'CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}


Wed, 12 Aug 2026 14:30:00 +0000

Type Values Removed Values Added
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.
References

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-08-12T19:26:22.530Z

Reserved: 2025-09-12T00:00:00.000Z

Link: CVE-2025-59320

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-12T15:17:29.787

Modified: 2026-08-12T20:17:32.960

Link: CVE-2025-59320

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-12T23:45:02Z