CVE-2022-42731

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 0.4%, top 38% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 7.5Exploit: NoneExposed: 0

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

mfa/FIDO2.py in django-mfa2 before 2.5.1 and 2.6.x before 2.6.1 allows a replay attack that could be used to register another device for a user. The device registration challenge is not invalidated after usage.

CVSS v3
7.5
EG Score
7.5(medium)
EPSS
60.2%
KEV
Not listed

Published

October 11, 2022

Last Modified

May 20, 2025

References (6)

Affected Packages

(1 across 1 ecosystem)
PyPI(1)
PackageVulnerable rangeFixed inDependents
django-mfa20.8 ... 2.6.0 (62 versions)2.6.1—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 38× 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.

  1. 2026-07-22 14:06 UTCEPSS rescore
  2. 2026-07-21 15:23 UTCEPSS rescore
  3. 2026-07-21 15:23 UTCEPSS rescore
  4. 2026-07-20 17:05 UTCEPSS rescore
  5. 2026-07-19 14:29 UTCEPSS rescore
  6. 2026-07-19 02:27 UTCEPSS rescore
  7. 2026-07-19 02:27 UTCEPSS rescore
  8. 2026-07-18 10:03 UTCEPSS rescore
  9. 2026-07-18 10:03 UTCEPSS rescore
  10. 2026-07-16 18:23 UTCOSV refresh
  11. 2026-07-15 16:56 UTCEPSS rescore
  12. 2026-07-15 16:56 UTCEPSS rescore
  13. 2026-07-15 01:58 UTCEPSS rescore
  14. 2026-07-13 22:28 UTCEPSS rescore
  15. 2026-07-13 06:11 UTCEPSS rescore
  16. 2026-07-12 05:44 UTCEPSS rescore
  17. 2026-07-11 08:25 UTCEPSS rescore
  18. 2026-07-11 08:25 UTCEPSS rescore
  19. 2026-07-09 19:08 UTCEPSS rescore
  20. 2026-07-08 15:12 UTCEPSS rescore
  21. 2026-07-07 13:44 UTCEPSS rescore
  22. 2026-07-06 16:25 UTCEPSS rescore
  23. 2026-07-06 02:21 UTCEPSS rescore
  24. 2026-07-05 02:28 UTCEPSS rescore
  25. 2026-07-04 06:29 UTCEPSS rescore
Show 68 more
  1. 2026-07-02 16:58 UTCEPSS rescore
  2. 2026-07-01 15:04 UTCEPSS rescore
  3. 2026-06-28 16:32 UTCOSV refresh
  4. 2026-06-28 14:06 UTCEPSS rescore
  5. 2026-06-28 04:54 UTCEPSS rescore
  6. 2026-06-28 04:54 UTCEPSS rescore
  7. 2026-06-27 03:07 UTCEPSS rescore
  8. 2026-06-27 03:07 UTCEPSS rescore
  9. 2026-06-25 13:48 UTCEPSS rescore
  10. 2026-06-25 13:48 UTCEPSS rescore
  11. 2026-06-24 14:03 UTCEPSS rescore
  12. 2026-06-23 21:31 UTCEPSS rescore
  13. 2026-06-23 21:31 UTCEPSS rescore
  14. 2026-06-22 14:24 UTCEPSS rescore
  15. 2026-06-21 14:55 UTCEPSS rescore
  16. 2026-06-21 14:55 UTCEPSS rescore
  17. 2026-06-21 01:58 UTCEPSS rescore
  18. 2026-06-21 01:58 UTCEPSS rescore
  19. 2026-06-19 19:24 UTCEPSS rescore
  20. 2026-06-19 19:24 UTCEPSS rescore
  21. 2026-06-18 17:51 UTCEPSS rescore
  22. 2026-06-18 17:51 UTCEPSS rescore
  23. 2026-06-17 17:51 UTCEPSS rescore
  24. 2026-06-17 17:51 UTCEPSS rescore
  25. 2026-06-16 17:51 UTCEPSS rescore
  26. 2026-06-15 17:46 UTCEPSS rescore
  27. 2026-06-14 23:16 UTCEPSS rescore
  28. 2026-06-13 22:59 UTCEPSS rescore
  29. 2026-06-12 23:10 UTCEPSS rescore
  30. 2026-06-12 23:10 UTCEPSS rescore
  31. 2026-06-11 13:58 UTCEPSS rescore
  32. 2026-06-11 13:58 UTCEPSS rescore
  33. 2026-06-11 07:09 UTCOSV refresh
  34. 2026-06-10 22:17 UTCEPSS rescore
  35. 2026-06-10 13:21 UTCEPSS rescore
  36. 2026-06-10 13:21 UTCEPSS rescore
  37. 2026-06-08 14:15 UTCEPSS rescore
  38. 2026-06-07 15:23 UTCEPSS rescore
  39. 2026-06-07 15:23 UTCEPSS rescore
  40. 2026-06-06 13:46 UTCEPSS rescore
  41. 2026-06-06 13:46 UTCEPSS rescore
  42. 2026-06-06 13:46 UTCEPSS rescore
  43. 2026-06-05 22:46 UTCEPSS rescore
  44. 2026-06-05 22:46 UTCEPSS rescore
  45. 2026-06-05 06:09 UTCEPSS rescore
  46. 2026-06-05 06:09 UTCEPSS rescore
  47. 2026-06-04 13:11 UTCEPSS rescore
  48. 2026-06-02 20:12 UTCEPSS rescore
  49. 2026-06-02 20:11 UTCEPSS rescore
  50. 2026-06-01 13:50 UTCEPSS rescore
  51. 2026-06-01 13:50 UTCEPSS rescore
  52. 2026-05-31 22:29 UTCEPSS rescore
  53. 2026-05-31 22:29 UTCEPSS rescore
  54. 2026-05-31 00:15 UTCEPSS rescore
  55. 2026-05-31 00:15 UTCEPSS rescore
  56. 2026-05-29 13:43 UTCEPSS rescore
  57. 2026-05-28 13:43 UTCEPSS rescore
  58. 2026-05-28 13:43 UTCEPSS rescore
  59. 2026-05-27 13:39 UTCEPSS rescore
  60. 2026-05-27 13:39 UTCEPSS rescore
  61. 2026-05-26 13:43 UTCEPSS rescore
  62. 2026-05-26 13:43 UTCEPSS rescore
  63. 2026-05-26 13:43 UTCEPSS rescore
  64. 2026-05-26 07:17 UTCEPSS rescore
  65. 2026-05-26 07:17 UTCEPSS rescore
  66. 2026-05-26 07:17 UTCEPSS rescore
  67. 2026-05-25 14:09 UTCEG score recompute
  68. 2026-05-24 00:22 UTCOSV refresh

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2022-42731?
CVE-2022-42731 is a high vulnerability published on October 11, 2022. mfa/FIDO2.py in django-mfa2 before 2.5.1 and 2.6.x before 2.6.1 allows a replay attack that could be used to register another device for a user. The device registration challenge is not invalidated after usage.
When was CVE-2022-42731 disclosed?
CVE-2022-42731 was first published in the National Vulnerability Database on October 11, 2022, with the most recent update on May 20, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2022-42731 actively exploited?
CVE-2022-42731 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 60.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2022-42731?
CVE-2022-42731 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2022-42731?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-42731, 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.

Dependency Blast Radius

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