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TI-2020-09878 Aliases CVE-2020-12355GHSA-84pm-g9xr-pqcm

Authentication bypass by capture-replay in Intel TXE

Priority LOW 30CWE-294Published · Updated

Key facts

Attack vector
Physical
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-294.

Summary

Authentication bypass by capture-replay in RPMB protocol message authentication subsystem in Intel(R) TXE versions before 4.0.30 may allow an unauthenticated user to potentially enable escalation of privilege via physical access.

Why it matters now

EPSS 0.00405 34th percentileScored 2026-11-07
Fix Fixed Intel(R) TXE: 4.0.30

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
—Intel(R) TXEbefore 4.0.304.0.30Patch availableCNA
  • Intel(R) TXE Vendor— Affected before 4.0.30 Fixed in 4.0.30 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:o:intel:trusted_execution_engine:*:*:*:*:*:*:*:*before 4.0.30VulnerableIntel
  • cpe:2.3:o:intel:trusted_execution_engine:*:*:*:*:*:*:*:* Versions before 4.0.30 Vulnerable ·Intel

Remediation

  • Fix · CNA Intel(R) TXE Fixed in 4.0.30

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-12355
  2. 2026-10-03 Alias added: GHSA-84pm-g9xr-pqcm

References

Advisory 2

  • TI-2020-07014 Use after free in Intel TXE CVSS 3.1HIGH 7.8
  • TI-2020-07009 Improper initialization in subsystem for Intel(R) CSME versions before12.0.70, 13.0.40… CVSS 3.1HIGH 7.8
  • TI-2020-00529 Integer overflow in Intel CSME, Intel TXE, and Intel SPS CVSS 3.1MEDIUM 4.4

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences