CVE-2023-20199

MEDIUMNVD 6.26.2—
EchelonGraph scoreMEDIUM confidence

Score 6.2 from GitHub Security Advisory published 2023-06-28. NVD baseline CVSS 6.2; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
6.2EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.2Exploit: None knownExposed: 0

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

A vulnerability in Cisco Duo Two-Factor Authentication for macOS could allow an authenticated, physical attacker to bypass secondary authentication and access an affected macOS device. This vulnerability is due to the incorrect handling of responses from Cisco Duo when the application is configured to fail open. An attacker with primary user credentials could exploit this vulnerability by attempting to authenticate to an affected device. A successful exploit could allow the attacker to access the affected device without valid permission.

CVSS v3
6.2
EG Score
6.2(medium)
EG Risk
33(Track)
EG Risk 33/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity62% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
22%
KEV
Not listed

Published

June 28, 2023

Last Modified

November 21, 2024

References (2)

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 9× in last 7d / 44× 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 116 total refreshes for this CVE.

  1. 2026-07-30 16:26 UTCEPSS rescore
  2. 2026-07-30 01:28 UTCEPSS rescore
  3. 2026-07-30 01:28 UTCEPSS rescore
  4. 2026-07-28 15:34 UTCEPSS rescore
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  10. 2026-07-23 14:16 UTCEPSS rescore
  11. 2026-07-23 14:16 UTCEPSS rescore
  12. 2026-07-23 02:18 UTCEG score recompute
  13. 2026-07-22 23:05 UTCEG score recompute
  14. 2026-07-22 14:06 UTCEPSS rescore
  15. 2026-07-21 15:23 UTCEPSS rescore
  16. 2026-07-20 17:05 UTCEPSS rescore
  17. 2026-07-19 14:29 UTCEPSS rescore
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  25. 2026-07-15 16:56 UTCEPSS rescore
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  1. 2026-07-15 01:58 UTCEPSS rescore
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  3. 2026-07-13 22:28 UTCEPSS rescore
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  5. 2026-07-13 06:11 UTCEPSS rescore
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  10. 2026-07-09 19:08 UTCEPSS rescore
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  17. 2026-07-02 16:58 UTCEPSS rescore
  18. 2026-07-01 15:04 UTCEPSS rescore
  19. 2026-06-30 23:21 UTCEPSS rescore
  20. 2026-06-29 14:04 UTCEPSS rescore
  21. 2026-06-28 14:06 UTCEPSS rescore
  22. 2026-06-28 14:06 UTCEPSS rescore
  23. 2026-06-28 04:54 UTCEPSS rescore
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  25. 2026-06-27 03:07 UTCEPSS rescore
  26. 2026-06-25 13:48 UTCEPSS rescore
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  30. 2026-06-23 21:31 UTCEPSS rescore
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  36. 2026-06-21 01:58 UTCEPSS rescore
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  38. 2026-06-19 19:24 UTCEPSS rescore
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  40. 2026-06-18 17:51 UTCEPSS rescore
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  42. 2026-06-17 17:51 UTCEPSS rescore
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  44. 2026-06-16 17:51 UTCEPSS rescore
  45. 2026-06-16 17:51 UTCEPSS rescore
  46. 2026-06-16 17:51 UTCEPSS rescore
  47. 2026-06-15 17:47 UTCEPSS rescore
  48. 2026-06-14 23:16 UTCEPSS rescore
  49. 2026-06-13 22:59 UTCEPSS rescore
  50. 2026-06-12 23:10 UTCEPSS rescore
  51. 2026-06-11 13:59 UTCEPSS rescore
  52. 2026-06-11 13:58 UTCEPSS rescore
  53. 2026-06-10 22:17 UTCEPSS rescore
  54. 2026-06-10 13:21 UTCEPSS rescore
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  56. 2026-06-08 14:15 UTCEPSS rescore
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  58. 2026-06-07 15:23 UTCEPSS rescore
  59. 2026-06-07 15:23 UTCEPSS rescore
  60. 2026-06-06 13:46 UTCEPSS rescore
  61. 2026-06-06 13:46 UTCEPSS rescore
  62. 2026-06-05 22:46 UTCEPSS rescore
  63. 2026-06-05 22:46 UTCEPSS rescore
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  65. 2026-06-05 06:09 UTCEPSS rescore
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  67. 2026-06-04 13:11 UTCEPSS rescore
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  69. 2026-06-02 20:12 UTCEPSS rescore
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  72. 2026-06-01 13:51 UTCEPSS rescore
  73. 2026-06-01 13:50 UTCEPSS rescore
  74. 2026-05-31 22:29 UTCEPSS rescore
  75. 2026-05-31 22:29 UTCEPSS rescore

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2023-20199?
CVE-2023-20199 is a medium vulnerability published on June 28, 2023. A vulnerability in Cisco Duo Two-Factor Authentication for macOS could allow an authenticated, physical attacker to bypass secondary authentication and access an affected macOS device. This vulnerability is due to the incorrect handling of responses from Cisco Duo when the application is configured…
When was CVE-2023-20199 disclosed?
CVE-2023-20199 was first published in the National Vulnerability Database on June 28, 2023, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-20199 actively exploited?
CVE-2023-20199 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 78.5% of all scored CVEs.
What is the CVSS score of CVE-2023-20199?
CVE-2023-20199 has a CVSS v3 base score of 6.2 (NVD).
How do I remediate CVE-2023-20199?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-20199, 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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