CVE-2026-44963

CRITICALPre-NVD 9.49.4—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.4 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 2.0%, top 21% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Trending — 3 sources updated this weekElevated
9.4
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 2%CVSS: 9.4Exploit: NoneExposed: 0

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

A vulnerability allowing remote code execution (RCE) on the Backup Server by an authenticated domain user.

CVSS v3
9.4
EG Score
9.4(medium)
EPSS
78.8%
KEV
Not listed

Published

June 9, 2026

Last Modified

June 10, 2026

Advisory Details (1)

Auto-updated Jun 9, 2026
No patch confirmed yet.
generic

KB4869: Vulnerability Resolved in Veeam Backup & Replication 12.3.2.4854

https://www.veeam.com/kb4869

Vendor Advisories for CVE-2026-44963(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 62× in last 7d / 321× 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 321 total refreshes for this CVE.

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

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 GitHub PoC). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCSentinelXofficial/CVE-2026-44963
    First seen Jun 18, 2026

    Detection scripts, patch checker & hardening guide for CVE-2026-44963 (Veeam B&R RCE)

    Open source ↗

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-44963?
CVE-2026-44963 is a critical vulnerability published on June 9, 2026. A vulnerability allowing remote code execution (RCE) on the Backup Server by an authenticated domain user.
When was CVE-2026-44963 disclosed?
CVE-2026-44963 was first published in the National Vulnerability Database on June 9, 2026, with the most recent update on June 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-44963 actively exploited?
CVE-2026-44963 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 78.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-44963?
CVE-2026-44963 has a CVSS v3 base score of 9.4 (NVD).
How do I remediate CVE-2026-44963?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-44963, 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-2026-44963

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