Security readout for executives and security teams
Plain-English summary
CryptoPro Secure Disk for BitLocker before v7.7.4 may leave TPM 2.0 secrets in unused disk sectors. Someone possessing the system disk could recover those secrets and create an environment capable of unsealing the TPM, potentially exposing protected data. This is primarily a lost, stolen, or physically accessed device risk.
Executive priority
Prioritize affected portable, high-value, or physically exposed systems. The overall severity is moderate because an attacker needs the disk, but the potential confidentiality loss is high. Establish the affected inventory promptly, update after confirming vendor guidance, and review previously lost or transferred devices.
Technical view
The product serializes TPM 2.0 secrets into unused sectors of the system disk, constituting insecure storage under CWE-922. Exploitation requires physical disk access but needs no authentication or user interaction. The CVSS 3.1 score is 4.6, with high confidentiality impact and no stated integrity or availability impact.
Likely exposure
Exposure is limited to systems using CPSD CryptoPro Secure Disk for BitLocker versions earlier than v7.7.4, particularly devices vulnerable to loss, theft, disposal, or unauthorized physical access. The bundle provides no CPEs or deployment prevalence, so fleet-wide exposure cannot be estimated.
Exploitation context
The stated attack requires physical access to the system disk. Complexity is rated low, with no privileges or user interaction required. CISA KEV status is false, and the supplied sources provide no evidence of active exploitation. Recovery of stored secrets could enable TPM unsealing and loss of confidentiality.
Researcher notes
The weakness is classified as CWE-922. The key condition is persistence of serialized TPM 2.0 secrets in unused disk sectors, not a remote service flaw. The bundle does not document affected configurations beyond versions before v7.7.4, observed exploitation, forensic indicators, or whether ordinary disk sanitization removes the remnants.
Mitigation direction
- Inventory CPSD installations and prioritize systems running versions earlier than v7.7.4.
- Confirm remediation guidance with CPSD and update to v7.7.4 or later where supported.
- Strengthen physical controls for laptops, system disks, storage, repair, and disposal workflows.
- Treat lost or stolen affected devices as potential confidentiality incidents.
Validation and detection
- Verify the installed CPSD version on every system using the product.
- Identify affected systems using TPM 2.0-backed BitLocker protection.
- Review device-loss, repair, and disposal records for prior physical exposure.
- Confirm updated systems no longer use a version earlier than v7.7.4.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-922: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2025-59320 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 4.6 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N0.93.6CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
4.6MediumVector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://www.cpsd.at/blog/CVE reference, mitre
- https://i.blackhat.com/BH-USA-26/Presentations/US-26-Burch-The-Cost-of-Obscurity-Wednesday.pdfCVE reference, mitre
- https://i.blackhat.com/BH-USA-26/Presentations/US-26-Burch-The-Cost-of-Obscurity-wp.pdfCVE reference, mitre
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Insecure Storage of Sensitive Information
Insecure Storage of Sensitive Information represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.