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: 2.4%, top 18% 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
9.4EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 2%CVSS: 9.4Exploit: Elevated riskExposed: 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)
EG Risk
63(Track*)
EG Risk 63/100SSVC: 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
Severity94% × 45%
Exploitation40% × 40%
Automatability30% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
2%
EPSS %ILE
82%
KEV
Not listed

Published

June 9, 2026

Last Modified

July 23, 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 15× in last 7d / 121× 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 241 total refreshes for this CVE.

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

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 ↗

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 July 23, 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 2% probability of exploitation in the next 30 days, which ranks it in the top 18.1% of all scored CVEs.
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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