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TI-2024-27116 Aliases CVE-2024-40721GHSA-f6q3-hjwj-2j45

CHANGING Information Technology TCBServiSign Windows Version - Improper Input Validation

Priority MEDIUM 41CWE-20Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

The specific API in TCBServiSign Windows Version from CHANGING Information Technology does not properly validate server-side input. When a user visits a spoofed website, unauthenticated remote attackers can cause the TCBServiSign to load a DLL from an arbitrary path.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00564 47th percentileScored 2026-11-07
Fix Fixed TCBServiSign Windows Version (CHANGING Information Technology): 1.0.24.0318

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

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

Affected products

VendorProductAffected versionsFixed inStatusSource
CHANGINGTCBServiSign Windows Versionbefore 1.0.24.03181.0.24.0318Patch availableCNA
  • TCBServiSign Windows Version VendorCHANGING Affected before 1.0.24.0318 Fixed in 1.0.24.0318 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:changingtec:tcb_servisign:*:*:*:*:*:windows:*:*before 1.0.24.0318VulnerableCHANGING
  • cpe:2.3:a:changingtec:tcb_servisign:*:*:*:*:*:windows:*:* Versions before 1.0.24.0318 Vulnerable ·CHANGING

Remediation

  • Fix · CNA TCBServiSign Windows Version (CHANGING Information Technology) Fixed in 1.0.24.0318

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    CHANGING Information Technology TCBServiSign Windows Version 1.0.24.0318

    4 records Highest priority Priority MEDIUM 2 MEDIUM, 2 LOW

    Other records, highest priority first

    • TI-2024-27115 CHANGING Information Technology TCBServiSign Windows Version - Improper Input ValidationPriority MEDIUM 41
    • TI-2024-27114 CHANGING Information Technology TCBServiSign Windows Version - Inadequate Encryption StrengthPriority LOW 28
    • TI-2024-27117 CHANGING Information Technology TCBServiSign Windows Version - Stack-based Buffer OverflowPriority LOW 21
    Show all 4 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2024-40721
  2. 2026-10-03 Alias added: GHSA-f6q3-hjwj-2j45

References

Advisory 2

  • TI-2024-27115 CHANGING Information Technology TCBServiSign Windows Version - Improper Input Validation CVSS 3.1HIGH 8.8
  • TI-2024-27114 CHANGING Information Technology TCBServiSign Windows Version - Inadequate Encryption Strength CVSS 3.1MEDIUM 6.5
  • TI-2024-27117 CHANGING Information Technology TCBServiSign Windows Version - Stack-based Buffer Overflow CVSS 3.1MEDIUM 4.3

Sources

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