CVE-2024-12839

HIGHNVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2024-12-31. NVD baseline CVSS 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
8.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 8.8Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
8.8
EG Score
8.8(medium)
EPSS
48.8%
KEV
Not listed

Published

December 31, 2024

Last Modified

April 15, 2026

Advisory Details (2)

Auto-updated May 22, 2026
No patch confirmed yet. Sources: cert.
cert

全景軟體 CGFIDO - Authentication Bypass-TWCERT/CC台灣電腦網路危機處理暨協調中心|企業資安通報協處|資安情資分享|漏洞通報|資安聯盟|資安電子報

https://www.twcert.org.tw/tw/cp-132-8334-8b836-1.html
cert

Changing Information Technology CGFIDO - Authentication Bypass-TWCERT/CC Taiwan Computer Emergency Response Team/Coordination Center

https://www.twcert.org.tw/en/cp-139-8335-e4a3f-2.html

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 8× in last 7d / 42× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 121 total refreshes for this CVE.

  1. 2026-07-22 14:07 UTCEPSS rescore
  2. 2026-07-21 15:23 UTCEPSS rescore
  3. 2026-07-20 17:06 UTCEPSS rescore
  4. 2026-07-19 14:30 UTCEPSS rescore
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  11. 2026-07-15 01:59 UTCEPSS rescore
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  18. 2026-07-11 08:26 UTCEPSS rescore
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  20. 2026-07-08 15:13 UTCEPSS rescore
  21. 2026-07-07 13:45 UTCEPSS rescore
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  23. 2026-07-06 16:26 UTCEPSS rescore
  24. 2026-07-06 02:22 UTCEPSS rescore
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  1. 2026-07-05 02:29 UTCEPSS rescore
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  5. 2026-06-30 23:21 UTCEPSS rescore
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  7. 2026-06-29 14:05 UTCEPSS rescore
  8. 2026-06-28 14:06 UTCEPSS rescore
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  10. 2026-06-28 04:55 UTCEPSS rescore
  11. 2026-06-27 03:07 UTCEPSS rescore
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  13. 2026-06-25 13:48 UTCEPSS rescore
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  16. 2026-06-23 21:32 UTCEPSS rescore
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  18. 2026-06-22 14:24 UTCEPSS rescore
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  20. 2026-06-21 14:55 UTCEPSS rescore
  21. 2026-06-21 14:55 UTCEPSS rescore
  22. 2026-06-21 01:58 UTCEPSS rescore
  23. 2026-06-21 01:58 UTCEPSS rescore
  24. 2026-06-19 19:24 UTCEPSS rescore
  25. 2026-06-19 19:24 UTCEPSS rescore
  26. 2026-06-18 17:51 UTCEPSS rescore
  27. 2026-06-17 17:52 UTCEPSS rescore
  28. 2026-06-17 17:51 UTCEPSS rescore
  29. 2026-06-16 17:51 UTCEPSS rescore
  30. 2026-06-16 17:51 UTCEPSS rescore
  31. 2026-06-15 17:47 UTCEPSS rescore
  32. 2026-06-14 23:16 UTCEPSS rescore
  33. 2026-06-13 22:59 UTCEPSS rescore
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  35. 2026-06-12 23:11 UTCEPSS rescore
  36. 2026-06-12 23:11 UTCEPSS rescore
  37. 2026-06-11 13:59 UTCEPSS rescore
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  39. 2026-06-10 22:17 UTCEPSS rescore
  40. 2026-06-10 22:17 UTCEPSS rescore
  41. 2026-06-10 13:21 UTCEPSS rescore
  42. 2026-06-10 13:21 UTCEPSS rescore
  43. 2026-06-08 14:16 UTCEPSS rescore
  44. 2026-06-08 14:16 UTCEPSS rescore
  45. 2026-06-07 15:24 UTCEPSS rescore
  46. 2026-06-07 15:24 UTCEPSS rescore
  47. 2026-06-06 13:46 UTCEPSS rescore
  48. 2026-06-06 13:46 UTCEPSS rescore
  49. 2026-06-05 22:46 UTCEPSS rescore
  50. 2026-06-05 22:46 UTCEPSS rescore
  51. 2026-06-05 06:09 UTCEPSS rescore
  52. 2026-06-05 06:09 UTCEPSS rescore
  53. 2026-06-04 13:11 UTCEPSS rescore
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  56. 2026-06-02 20:12 UTCEPSS rescore
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  58. 2026-06-01 13:51 UTCEPSS rescore
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  60. 2026-05-31 22:30 UTCEPSS rescore
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  62. 2026-05-31 00:15 UTCEPSS rescore
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  64. 2026-05-29 13:43 UTCEPSS rescore
  65. 2026-05-28 13:44 UTCEPSS rescore
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  67. 2026-05-28 13:44 UTCEPSS rescore
  68. 2026-05-27 13:40 UTCEPSS rescore
  69. 2026-05-26 13:43 UTCEPSS rescore
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  71. 2026-05-26 07:18 UTCEPSS rescore
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  73. 2026-05-26 07:18 UTCEPSS rescore
  74. 2026-05-22 21:16 UTCEPSS rescore
  75. 2026-05-22 21:16 UTCEPSS rescore

Frequently asked(5)

What is CVE-2024-12839?
CVE-2024-12839 is a high vulnerability published on December 31, 2024. 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…
When was CVE-2024-12839 disclosed?
CVE-2024-12839 was first published in the National Vulnerability Database on December 31, 2024, with the most recent update on April 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2024-12839 actively exploited?
CVE-2024-12839 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 48.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2024-12839?
CVE-2024-12839 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2024-12839?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2024-12839, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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