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TI-2023-14825 Aliases CVE-2023-31100GHSA-h3cr-gxpm-fxxc

Improper access control in Phoenix SecureCore™ Technology™ 4

Priority LOW 36CWE-284Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-284.

Summary

Improper Access Control in SMI handler vulnerability in Phoenix SecureCore™ Technology™ 4 allows SPI flash modification. This issue affects SecureCore™ Technology™ 4: * from 4.3.0.0 before 4.3.0.203 * from 4.3.1.0 before 4.3.1.163 * from 4.4.0.0 before 4.4.0.217 * from 4.5.0.0 before 4.5.0.138

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00189 8th percentileScored 2026-11-07
Fix Fixed SecureCore™ Technology™ 4 (Phoenix): 4.3.0.203, 4.3.1.163, 4.4.0.217 +1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
PhoenixSecureCore™ Technology™ 44.3.0.0 to before 4.3.0.203; 4.3.1.0 to before 4.3.1.163; 4.4.0.0 to before 4.4.0.217; 4.5.0.0 to before 4.5.0.1384.3.0.203, 4.3.1.163, 4.4.0.217, 4.5.0.138Patch availableCNA
  • SecureCore™ Technology™ 4 VendorPhoenix Affected 4.3.0.0 to before 4.3.0.203; 4.3.1.0 to before 4.3.1.163; 4.4.0.0 to before 4.4.0.217; 4.5.0.0 to before 4.5.0.138 Fixed in 4.3.0.203, 4.3.1.163, 4.4.0.217, 4.5.0.138 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:o:phoenixtech:securecore_technology:*:*:*:*:*:*:*:*4.3.0.0 to before 4.3.0.203; 4.3.1.0 to before 4.3.1.163; 4.4.0.0 to before 4.4.0.217; 4.5.0.0 to before 4.5.0.138VulnerablePhoenixtech
  • cpe:2.3:o:phoenixtech:securecore_technology:*:*:*:*:*:*:*:* Versions 4.3.0.0 to before 4.3.0.203; 4.3.1.0 to before 4.3.1.163; 4.4.0.0 to before 4.4.0.217; 4.5.0.0 to before 4.5.0.138 Vulnerable ·Phoenixtech

Remediation

  • Fix · CNA SecureCore™ Technology™ 4 (Phoenix) Fixed in 4.3.0.203, 4.3.1.163, 4.4.0.217, 4.5.0.138

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-31100
  2. 2026-10-03 Alias added: GHSA-h3cr-gxpm-fxxc

References

Advisory 1

  • TI-2019-13287 In Phoenix SCT WinFlash 1.1.12.0 through 1.5.74.0, the included drivers could be used by… CVSS 3.1HIGH 8.8
  • TI-2024-00702 Potential buffer overflow when handling UEFI variables CVSS 3.1HIGH 7.8
  • TI-2024-01492 Potential buffer overflow when handling UEFI variables CVSS 3.1HIGH 7.8
  • TI-2023-17917 WinFlash Driver Permissions Issue CVSS 3.1HIGH 7.8
  • TI-2023-04658 Improper input validation in Phoenix SecureCore™ Technology™ 4 CVSS 3.1HIGH 7.8
  • TI-2025-27195 Reflected Cross-Site Scripting (XSS) in Phoenix CMS CVSS 4.0MEDIUM 5.1
See all 9 →

Sources

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