CVE-2021-4478

HIGHPre-NVD 8.28.2—
EchelonGraph scoreMEDIUM confidence

Score 8.2 from GitHub Security Advisory (severity: HIGH) published 2026-06-02. a secondary CVSS source baseline 8.2; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
8.2EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.2Exploit: None knownExposed: 0

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

Dräger CC-Vision Basic before 7.5.3 and Dräger CC-Vision E-Cal before 7.2.5.0 contain an out-of-bounds write vulnerability when loading .gdt files. A crafted .gdt file can trigger a buffer overflow during file parsing, allowing an attacker to crash the application or execute malicious code on the underlying system.

CVSS v3
8.2
EG Score
8.2(medium)
EG Risk
37(Track)
EG Risk 37/100SSVC: 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
Severity82% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
2%
KEV
Not listed

Published

June 2, 2026

Last Modified

July 22, 2026

References (2)

Vendor Advisories for CVE-2021-4478(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 6× in last 7d / 35× 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 240 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2021-4478?
CVE-2021-4478 is a high vulnerability published on June 2, 2026. Dräger CC-Vision Basic before 7.5.3 and Dräger CC-Vision E-Cal before 7.2.5.0 contain an out-of-bounds write vulnerability when loading .gdt files. A crafted .gdt file can trigger a buffer overflow during file parsing, allowing an attacker to crash the application or execute malicious code on the…
When was CVE-2021-4478 disclosed?
CVE-2021-4478 was first published in the National Vulnerability Database on June 2, 2026, with the most recent update on July 22, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2021-4478 actively exploited?
CVE-2021-4478 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 97.8% of all scored CVEs.
What is the CVSS score of CVE-2021-4478?
CVE-2021-4478 has a CVSS v3 base score of 8.2 (NVD).
How do I remediate CVE-2021-4478?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-4478, 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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