CVE-2021-44207

HIGHNVD 8.19.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2024-12-23), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 8.1 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, nvd
Trending — 4 sources updated this weekExploited in the wild
8.1
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS: 18%CVSS: 8.1Exploit: NoneExposed: 0

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

Acclaim USAHERDS through 7.4.0.1 uses hard-coded credentials.

CVSS v3
8.1
EG Score
9.0(high)
EG Risk
81(Attend)
EG Risk 81/100SSVC: 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
Severity90% × 45%
Exploitation100% × 40%
Automatability0% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS
96.8%
KEV
⚠ Exploited

Published

December 21, 2021

Last Modified

November 10, 2025

Advisory Details (3)

Auto-updated Jun 3, 2026
⚠️ Active exploitation confirmed. Patch available. Sources: cisa.
cisa Patch Available🔴 Active Exploitation

Known Exploited Vulnerabilities Catalog | CISA

Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-44207
generic

Acclaim Systems Home

https://www.acclaimsystems.com
generic

Vulnerability-Disclosures/MNDT-2021-0012/MNDT-2021-0012.md at master · mandiant/Vulnerability-Disclosures · GitHub

https://github.com/mandiant/Vulnerability-Disclosures/blob/master/MNDT-2021-0012/MNDT-2021-0012.md

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 57× in last 7d / 245× 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 460 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(6)

What is CVE-2021-44207?
CVE-2021-44207 is a high vulnerability published on December 21, 2021. Acclaim USAHERDS through 7.4.0.1 uses hard-coded credentials.
When was CVE-2021-44207 disclosed?
CVE-2021-44207 was first published in the National Vulnerability Database on December 21, 2021, with the most recent update on November 10, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2021-44207 actively exploited?
Yes. CISA added CVE-2021-44207 to the Known Exploited Vulnerabilities catalog on December 23, 2024, affecting Acclaim Systems USAHERDS. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2021-44207?
CVE-2021-44207 has a CVSS v3 base score of 8.1 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
Which products are affected by CVE-2021-44207?
CVE-2021-44207 affects Acclaim Systems USAHERDS. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.
How do I remediate CVE-2021-44207?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-44207, 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

Explore the affected products and dependency analysis for CVE-2021-44207

Explore →

Is Your Infrastructure Affected by CVE-2021-44207?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs