CVE-2025-59321
TPM PCR policy flaw lets CryptoPro Secure Disk unseal TPM and expose BitLocker keys.
Is CVE-2025-59321 being exploited?
Not confirmed. CVE-2025-59321 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.53% probability of exploitation in the next 30 days.
How severe is CVE-2025-59321?
CVE-2025-59321 is rated Critical with a CVSS score of 9.8. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2025-59321?
Yes. A fix has been recorded for CVE-2025-59321. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2025-59321 affect?
CVE-2025-59321 affects CryptoPro Secure Disk for BitLocker (< v7.7.4), Windows systems using CryptoPro Secure Disk with BitLocker, TPM-protected BitLocker volumes using CryptoPro policy. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2025-59321?
Upgrade to CryptoPro Secure Disk v7.7.4+, restrict physical access, avoid moving affected disks.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Bypasses TPM PCR checks to unseal BitLocker keys, enabling full-disk decryption and data theft with local/physical access or when disk moved.
Immediate action required