Security readout for executives and security teams
Plain-English summary
CVE-2026-14960 is a critical flaw in Pegatron’s Tdelo64.sys driver. It exposes powerful hardware access through the \\.\TdeIo interface without authorization checks. If present on a Windows system, a low-privileged local user could tamper with hardware-level behavior, destabilize the system, or support persistent compromise.
Executive priority
Treat this as urgent for asset discovery and containment planning. The risk is highest on systems where the driver is installed, especially privileged workstations or systems touching firmware operations. Do not assume broad exposure until inventory confirms it.
Technical view
The driver exposes IOCTL handlers including TDE_IOCTL_INDEXIO_READ and TDE_IOCTL_INDEXIO_WRITE that allow arbitrary hardware I/O port reads and writes from unprivileged user mode. The source bundle maps this to CWE-269, CWE-284, and CWE-668. The bundle’s narrative says local abuse, while the CVSS vector lists AV:N/PR:N, so exposure modeling needs confirmation.
Likely exposure
Systems are likely exposed only where Pegatron Tdelo64.sys version 02-17-2025 is installed and loadable. The supplied evidence does not identify OEM device models, distribution channels, default installation status, or whether the driver ships broadly with utilities or firmware tooling.
Exploitation context
The source bundle does not show known active exploitation, and KEV is false. The impact is still serious because vulnerable kernel drivers can give attackers low-level hardware access after they already have a way to run code on an affected host.
Researcher notes
Key uncertainty: the bundle describes local user-mode abuse, but the CVSS vector is network/no-privilege. No patch, product distribution details, or exploitation evidence are provided in the supplied sources. Validation should focus on driver presence, loadability, device interface exposure, and vendor guidance.
Mitigation direction
- Inventory endpoints for Pegatron Tdelo64.sys version 02-17-2025.
- Check CERT and Pegatron guidance for fixed driver or removal instructions.
- Remove or disable the driver where it is not operationally required.
- Block unapproved vulnerable driver deployment through endpoint controls.
- Prioritize systems used for administration, firmware management, or sensitive workloads.
Validation and detection
- Confirm whether Tdelo64.sys is present and loaded on Windows endpoints.
- Record driver file version, signing details, path, and installation source.
- Review endpoint telemetry for unexpected access to \\.\TdeIo.
- Validate whether business applications require this driver before removal.
- Track CERT VU#529388 and CVE updates for remediation details.
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-269: Authorization and privilege behavior lookup
Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. 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 lookupCWE-284: Authorization and privilege behavior lookup
Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. 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 lookupCWE-668: 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-2026-14960 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
- Critical
- CVSS
- 9.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H3.95.9CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
9.8CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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://kb.cert.org/vuls/id/529388CVE reference, certcc
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.
Improper Privilege Management
Improper Privilege Management represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.
Improper Access Control
Improper Access Control represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.
Exposure of Resource to Wrong Sphere
Exposure of Resource to Wrong Sphere represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.