CVE-2024-12839 json
Changing Information Technology CGFIDO - Authentication Bypass
published 2024-12-31 22 mo ago modified 2026-06-17 4 mo ago also EUVD-2024-51140
- cvss
- 8.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.7%
- EPSS 0.7% chance of exploitation in 30 days, percentile 54%
- public exploits
- 0
- none known
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.
Patch / fix
- Changing Information Technology CGFIDO 1.2.1
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 22 mo ago
Exploit prediction
0.72% chance of exploitation in the next 30 days, higher than 54% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
Affected products
- Changing Information Technology CGFIDO
Classification
- Weakness
-
- CWE-294 Authentication Bypass by Capture-replay
References
-
twcert.org.tw
/tw/cp-132-8334-8b836-1.html
third-party-advisory
-
twcert.org.tw
/en/cp-139-8335-e4a3f-2.html
third-party-advisory
Sources
- CVE List CVE-2024-12839
- NVD CVE-2024-12839
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.