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CVE Record

CVE-2019-1010296: Linaro/OP-TEE OP-TEE 3.3.0 and earlier is affected by: Buffer Overflow.

Linaro/OP-TEE OP-TEE 3.3.0 and earlier is affected by: Buffer Overflow. The impact is: Code execution in context of TEE core (kernel). The component is: optee_os. The fixed version is: 3.4.0 and later.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

This CVE affects OP-TEE 3.3.0 and earlier, a trusted execution environment used on some ARM-based platforms. A buffer overflow in optee_os could allow code execution inside the TEE core kernel context. The sources do not show active exploitation or provide a CVSS score.

Executive priority

Treat this as high priority for products relying on OP-TEE to protect secrets or secure execution. The impact is severe if reachable, but urgency depends on whether vulnerable OP-TEE versions are present in deployed firmware and whether vendors provide updated builds.

Technical view

The CVE record identifies a buffer overflow in Linaro/OP-TEE optee_os through 3.3.0, fixed in 3.4.0 and later. The stated impact is code execution in TEE core kernel context. The source bundle does not provide CWE, CVSS vector, affected downstream devices, or exploitability prerequisites.

Likely exposure

Exposure is limited to systems, firmware, products, or embedded platforms that include OP-TEE 3.3.0 or earlier. Downstream vendor impact is not identified in the supplied sources, so teams must map OP-TEE usage in their own device and firmware inventory.

Exploitation context

The provided sources do not report active exploitation, and the CVE is not marked as CISA KEV. Public evidence is limited to the CVE description and a referenced OP-TEE commit. Exploitability conditions are not described in the supplied bundle.

Researcher notes

Focus on version provenance and downstream integration. The source bundle gives the vulnerable component, version boundary, impact, and fixing commit, but not attack surface, trigger conditions, or affected device models. Avoid assuming exploitability without platform-specific analysis.

Mitigation direction

  • Upgrade OP-TEE to version 3.4.0 or later where feasible.
  • Review the referenced OP-TEE commit and vendor firmware advisories.
  • Ask device vendors whether shipped firmware includes vulnerable OP-TEE versions.
  • Prioritize products where TEE compromise affects keys, secure boot, DRM, or identity material.

Validation and detection

  • Inventory firmware and BSPs for OP-TEE version 3.3.0 or earlier.
  • Confirm whether optee_os includes the referenced fixing commit.
  • Check vendor release notes for OP-TEE 3.4.0 or later integration.
  • Document devices where OP-TEE version cannot be independently verified.
Prepared
Confidence
medium
Sources
3

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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

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description · low confidence lookup

Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

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cve · low confidence lookup

CVE-2019-1010296 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

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.

0CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
Linaro/OP-TEEOP-TEE3.3.0 and earlier [fixed: 3.4.0 and later]Listed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.