CVE-2025-59322

Deferred Deferred - Pending Action

CryptoPro Secure Disk Decryption Error Leading to Plaintext Mount

Publication date: 2026-08-12

Last updated on: 2026-08-31

Assigner: MITRE

Description

CPSD CryptoPro Secure Disk for Bitlocker before v7.7.4 fails to properly handle decryption errors and allows encrypted volumes to be mounted as plaintext.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-08-12

Last Modified

2026-08-31

Generated

2026-09-01

AI Q&A

2026-08-12

EPSS Evaluated

2026-08-31

NVD

CVE-2025-59322

EUVD

EUVD-2025-210712

Affected Vendors & Products

Vendor	Product	Version / Range
cpsd	cryptopro_secure_disk	to 7.7.4 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-329	The product generates and uses a predictable initialization Vector (IV) with Cipher Block Chaining (CBC) Mode, which causes algorithms to be susceptible to dictionary attacks when they are encrypted under the same key.
CWE-703	The product does not properly anticipate or handle exceptional conditions that rarely occur during normal operation of the product.

Attack-Flow Graph

Executive Summary

CPSD CryptoPro Secure Disk for Bitlocker before version 7.7.4 has a flaw where it does not correctly handle decryption errors. This allows encrypted volumes to be mounted as plaintext, meaning sensitive data could be exposed in an unencrypted state.

Detection Guidance

This vulnerability involves CPSD CryptoPro Secure Disk failing to handle decryption errors, allowing plaintext mounting of encrypted volumes. Detection requires checking installed versions of CPSD CryptoPro Secure Disk and verifying if encrypted volumes are mounted without proper decryption. No specific commands are provided in the context.

Impact Analysis

If you use CPSD CryptoPro Secure Disk for Bitlocker before v7.7.4, an attacker could exploit this flaw to access encrypted data without proper decryption. This could lead to unauthorized data exposure or theft of sensitive information.

Compliance Impact

This vulnerability could result in non-compliance with GDPR, HIPAA, or other regulations requiring encryption of sensitive data. Unauthorized access to plaintext data may lead to legal penalties, data breach notifications, and reputational damage.

Mitigation Strategies

Update CPSD CryptoPro Secure Disk for Bitlocker to version 7.7.4 or later to address the decryption error handling issue.

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