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TI-2024-11899 Aliases CVE-2024-12839GHSA-c45v-xc5j-qr2x

Changing Information Technology CGFIDO - Authentication Bypass

Priority MEDIUM 41CWE-294Published · Updated

Key facts

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

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

Summary

The login mechanism via device authentication of CGFIDO from Changing Information Technology has an Authentication Bypass vulnerability. If a user visits a forged website, the agent program deployed on their device will send an authentication signature to the website. An unauthenticated remote attacker who obtains this signature can use it to log into the system with any device.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00721 54th percentileScored 2026-11-07
Fix Fixed CGFIDO (Changing Information Technology): 1.2.1

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
CHANGINGCGFIDObefore 1.2.11.2.1Patch availableCNA
  • CGFIDO VendorCHANGING Affected before 1.2.1 Fixed in 1.2.1 Patch available CNA

Remediation

  • Fix · CNA CGFIDO (Changing Information Technology) Fixed in 1.2.1

Timeline

  1. 2026-10-02 Threatist record created from CVE-2024-12839
  2. 2026-10-03 Alias added: GHSA-c45v-xc5j-qr2x

References

Advisory 2

  • TI-2022-18452 ChangingTec MegaServiSignAdapter - Improper Input Validation CVSS 3.1CRITICAL 9.8
  • TI-2022-18448 Changing Information Technology Inc. RAVA certificate validation system - SQL Injection CVSS 3.1CRITICAL 9.8
  • TI-2026-02589 Changing｜IDExpert Windows Logon Agent - Remote Code Execution CVSS 4.0CRITICAL 9.3
  • TI-2026-02588 Changing｜IDExpert Windows Logon Agent - Remote Code Execution CVSS 4.0CRITICAL 9.3
  • TI-2021-15669 CHANGING Inc. TSSServiSignAdapter Windows Versions - Improper Input Validation CVSS 3.1CRITICAL 9.8
  • TI-2020-15835 CHANGING Inc. NHIServiSignAdapter Windows Versions - Stack Overflow CVSS 3.1CRITICAL 9.8
See all 41 →

Sources

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