CVE-2024-55550

CRITICALNVD 2.79.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2025-01-07), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 2.7 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
9.0EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 38%CVSS: 2.7Exploit: cisa kev · ssvc active · kev ransomware · epss top5pct · public exploitExposed: 0

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

Mitel MiCollab through 9.8 SP2 could allow an authenticated attacker with administrative privilege to conduct a local file read, due to insufficient input sanitization. A successful exploit could allow the authenticated admin attacker to access resources that are constrained to the admin access level, and the disclosure is limited to non-sensitive system information. This vulnerability does not allow file modification or privilege escalation.

CVSS v3
2.7
EG Score
9.0(high)
EG Risk
96(Attend)
EG Risk 96/100SSVC: 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%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
38%
EPSS %ILE
98%
KEV
⚠ Exploited

Published

December 10, 2024

Last Modified

August 4, 2026

References (3)

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 58× in last 7d / 232× 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 558 total refreshes for this CVE.

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

Publicly available exploits

(1 reference)

Working exploit code is in the public domain. Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Nucleihttp/cves/2024/CVE-2024-55550.yaml
    First seen Jan 1, 2024

    Mitel MiCollab - Arbitary File Read

    Open source ↗

Related CVEs(same CWE)

Frequently asked(6)

What is CVE-2024-55550?
CVE-2024-55550 is a critical vulnerability published on December 10, 2024. Mitel MiCollab through 9.8 SP2 could allow an authenticated attacker with administrative privilege to conduct a local file read, due to insufficient input sanitization. A successful exploit could allow the authenticated admin attacker to access resources that are constrained to the admin access…
When was CVE-2024-55550 disclosed?
CVE-2024-55550 was first published in the National Vulnerability Database on December 10, 2024, with the most recent update on August 4, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2024-55550 actively exploited?
Yes. CISA added CVE-2024-55550 to the Known Exploited Vulnerabilities catalog on January 7, 2025, affecting Mitel MiCollab. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2024-55550?
CVE-2024-55550 has a CVSS v3 base score of 2.7 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
Which products are affected by CVE-2024-55550?
CVE-2024-55550 affects Mitel MiCollab. 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-2024-55550?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2024-55550, 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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