CVE-2021-43716

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-18. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this weekElevated
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.8Exploit: Elevated riskExposed: 0

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

Verification Bypass vulnerability exists in EPSON 150075647YWWV110 EasyMP Network Updater Ver.1.20. The Epson projector can be updated by encrypted firmware through USB.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
75(Attend)
EG Risk 75/100SSVC: Attend

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
Severity98% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
0%
EPSS %ILE
23%
KEV
Not listed

Published

August 18, 2026

Last Modified

September 9, 2026

Advisory Details (1)

Auto-updated Sep 16, 2026
No patch confirmed yet.
generic

epson-eh-tw5350-advisories/CVE-2021-43716.md at master · dpfkdlemtp/epson-eh-tw5350-advisories · GitHub

https://github.com/dpfkdlemtp/epson-eh-tw5350-advisories/blob/master/CVE-2021-43716.md

Vendor Advisories for CVE-2021-43716(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 51× in last 7d / 217× 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 221 total refreshes for this CVE.

  1. 2026-09-19 16:07 UTCEG score recompute
  2. 2026-09-19 16:07 UTCGHSA enrichment
  3. 2026-09-19 15:38 UTCEPSS rescore
  4. 2026-09-19 11:19 UTCGHSA enrichment
  5. 2026-09-19 07:12 UTCGHSA enrichment
  6. 2026-09-19 02:59 UTCGHSA enrichment
  7. 2026-09-18 22:52 UTCEG score recompute
  8. 2026-09-18 22:52 UTCGHSA enrichment
  9. 2026-09-18 19:23 UTCEPSS rescore
  10. 2026-09-18 18:45 UTCGHSA enrichment
  11. 2026-09-18 14:27 UTCGHSA enrichment
  12. 2026-09-18 10:16 UTCGHSA enrichment
  13. 2026-09-18 06:08 UTCGHSA enrichment
  14. 2026-09-18 02:01 UTCGHSA enrichment
  15. 2026-09-17 21:53 UTCEG score recompute
  16. 2026-09-17 21:53 UTCGHSA enrichment
  17. 2026-09-17 19:23 UTCEPSS rescore
  18. 2026-09-17 19:23 UTCEPSS rescore
  19. 2026-09-17 16:06 UTCGHSA enrichment
  20. 2026-09-17 11:58 UTCGHSA enrichment
  21. 2026-09-17 07:51 UTCGHSA enrichment
  22. 2026-09-17 03:44 UTCGHSA enrichment
  23. 2026-09-16 22:59 UTCGHSA enrichment
  24. 2026-09-16 15:14 UTCEG score recompute
  25. 2026-09-16 15:14 UTCGHSA enrichment
Show 75 more
  1. 2026-09-16 14:05 UTCEPSS rescore
  2. 2026-09-16 10:13 UTCGHSA enrichment
  3. 2026-09-16 05:42 UTCEG score recompute
  4. 2026-09-16 05:42 UTCGHSA enrichment
  5. 2026-09-16 01:34 UTCGHSA enrichment
  6. 2026-09-15 21:26 UTCGHSA enrichment
  7. 2026-09-15 17:05 UTCGHSA enrichment
  8. 2026-09-15 12:57 UTCGHSA enrichment
  9. 2026-09-15 08:25 UTCGHSA enrichment
  10. 2026-09-15 04:16 UTCEG score recompute
  11. 2026-09-15 04:16 UTCGHSA enrichment
  12. 2026-09-15 03:06 UTCEPSS rescore
  13. 2026-09-15 00:08 UTCGHSA enrichment
  14. 2026-09-14 19:49 UTCGHSA enrichment
  15. 2026-09-14 13:51 UTCGHSA enrichment
  16. 2026-09-14 09:31 UTCGHSA enrichment
  17. 2026-09-14 05:24 UTCGHSA enrichment
  18. 2026-09-14 01:17 UTCGHSA enrichment
  19. 2026-09-13 21:10 UTCGHSA enrichment
  20. 2026-09-13 17:03 UTCEG score recompute
  21. 2026-09-13 17:03 UTCGHSA enrichment
  22. 2026-09-13 12:56 UTCGHSA enrichment
  23. 2026-09-13 08:48 UTCGHSA enrichment
  24. 2026-09-13 04:41 UTCGHSA enrichment
  25. 2026-09-13 00:31 UTCGHSA enrichment
  26. 2026-09-12 20:24 UTCGHSA enrichment
  27. 2026-09-12 16:17 UTCEG score recompute
  28. 2026-09-12 16:17 UTCGHSA enrichment
  29. 2026-09-12 14:57 UTCEPSS rescore
  30. 2026-09-12 12:09 UTCGHSA enrichment
  31. 2026-09-12 08:00 UTCGHSA enrichment
  32. 2026-09-12 03:52 UTCGHSA enrichment
  33. 2026-09-11 23:44 UTCGHSA enrichment
  34. 2026-09-11 19:19 UTCGHSA enrichment
  35. 2026-09-11 15:12 UTCEG score recompute
  36. 2026-09-11 15:12 UTCGHSA enrichment
  37. 2026-09-11 14:49 UTCEPSS rescore
  38. 2026-09-11 11:04 UTCEG score recompute
  39. 2026-09-11 11:04 UTCGHSA enrichment
  40. 2026-09-11 09:33 UTCEPSS rescore
  41. 2026-09-11 06:20 UTCGHSA enrichment
  42. 2026-09-11 02:12 UTCGHSA enrichment
  43. 2026-09-10 22:04 UTCGHSA enrichment
  44. 2026-09-10 17:56 UTCGHSA enrichment
  45. 2026-09-10 13:49 UTCGHSA enrichment
  46. 2026-09-10 09:42 UTCEG score recompute
  47. 2026-09-10 09:42 UTCGHSA enrichment
  48. 2026-09-10 05:20 UTCGHSA enrichment
  49. 2026-09-10 01:12 UTCGHSA enrichment
  50. 2026-09-09 16:11 UTCGHSA enrichment
  51. 2026-09-09 11:50 UTCGHSA enrichment
  52. 2026-09-09 07:41 UTCGHSA enrichment
  53. 2026-09-09 03:34 UTCEG score recompute
  54. 2026-09-09 03:34 UTCGHSA enrichment
  55. 2026-09-08 21:56 UTCEPSS rescore
  56. 2026-09-08 04:33 UTCGHSA enrichment
  57. 2026-09-08 00:25 UTCGHSA enrichment
  58. 2026-09-07 20:17 UTCGHSA enrichment
  59. 2026-09-07 16:10 UTCEG score recompute
  60. 2026-09-07 16:10 UTCGHSA enrichment
  61. 2026-09-07 15:58 UTCEPSS rescore
  62. 2026-09-07 10:31 UTCGHSA enrichment
  63. 2026-09-07 04:40 UTCGHSA enrichment
  64. 2026-09-06 21:55 UTCGHSA enrichment
  65. 2026-09-06 17:43 UTCEG score recompute
  66. 2026-09-06 17:43 UTCGHSA enrichment
  67. 2026-09-06 13:45 UTCEPSS rescore
  68. 2026-09-06 13:35 UTCGHSA enrichment
  69. 2026-09-06 09:27 UTCGHSA enrichment
  70. 2026-09-06 05:20 UTCGHSA enrichment
  71. 2026-09-06 01:13 UTCGHSA enrichment
  72. 2026-09-05 20:51 UTCGHSA enrichment
  73. 2026-09-05 16:44 UTCEG score recompute
  74. 2026-09-05 16:44 UTCGHSA enrichment
  75. 2026-09-05 15:25 UTCEPSS rescore

Frequently asked(5)

What is CVE-2021-43716?
CVE-2021-43716 is a critical vulnerability published on August 18, 2026. Verification Bypass vulnerability exists in EPSON 150075647YWWV110 EasyMP Network Updater Ver.1.20. The Epson projector can be updated by encrypted firmware through USB.
When was CVE-2021-43716 disclosed?
CVE-2021-43716 was first published in the National Vulnerability Database on August 18, 2026, with the most recent update on September 9, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2021-43716 actively exploited?
CVE-2021-43716 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 77.3% of all scored CVEs.
What is the CVSS score of CVE-2021-43716?
CVE-2021-43716 has a CVSS v3.1 base score of 9.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2021-43716?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-43716, 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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