CVE-2026-44963

CRITICALPre-NVD 9.49.4
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

This critical-severity CVE scores 9.4 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.6% (47th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from a secondary CVSS source
Sources: EPSS, a secondary CVSS source
Trending — 3 sources updated this weekElevated
9.4EG
EchelonGraph verdictPlan mitigationRemediate within your standard update timelines (the SSVC decision on this page).
  • Public exploit or proof-of-concept code is available
CISA-KEV: Not listedEPSS PROB: 0.6%CVSS: 9.4Exploit: Public PoCExposed services: Not assessed

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

The CVE record's CNA (HackerOne) lists Veeam Backup and Replication versions before 12.3.2 as affected. No release containing a fix is confirmed on record.

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

CVSS v3
9.4
EG Score
9.4CRITICALmedium confidence
EG Risk
58
EG Risk 58/100

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 (value × EchelonGraph’s weight)
Severity94% × 45%
The EG Score, 9.4 of 10.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.
EPSS PROB
0.6%
EPSS %ILE
47th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

June 9, 2026

Last Modified

July 23, 2026

Advisory Details (1)

Auto-updated Oct 2, 2026
No fix on record yet.
Web page

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 14× in last 7d / 31× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 456 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 356 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-12 22:30 UTCEG score recompute
  2. 2026-10-12 22:30 UTCGHSA enrichmentGHSA-qgvw-vfmj-prrg · GitHub severity CRITICAL
  3. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  4. 2026-10-12 16:04 UTCEG score recompute
  5. 2026-10-12 07:48 UTCGHSA enrichmentGHSA-qgvw-vfmj-prrg · GitHub severity CRITICAL
  6. 2026-10-11 19:47 UTCEG score recompute
  7. 2026-10-11 17:01 UTCEG score recompute
  8. 2026-10-11 14:26 UTCEG score recompute
  9. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  10. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  11. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  12. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  13. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  14. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  15. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  16. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  17. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  18. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  19. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  20. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  21. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  22. 2026-09-23 17:53 UTCEPSS rescoreEPSS 2.4% · 82nd percentile
  23. 2026-09-20 20:15 UTCEPSS rescoreEPSS 2.4% · 82nd percentile
  24. 2026-09-18 19:28 UTCEPSS rescoreEPSS 2.4% · 82nd percentile
  25. 2026-09-17 19:31 UTCEPSS rescoreEPSS 2.4% · 82nd percentile
Show 75 more
  1. 2026-09-16 14:08 UTCEPSS rescoreEPSS 2.4% · 82nd percentile
  2. 2026-09-16 05:15 UTCEPSS rescoreEPSS 2.4% · 82nd percentile
  3. 2026-09-14 08:16 UTCGHSA enrichmentGHSA-qgvw-vfmj-prrg · GitHub severity CRITICAL
  4. 2026-09-14 04:21 UTCEG score recompute
  5. 2026-09-14 04:21 UTCGHSA enrichmentGHSA-qgvw-vfmj-prrg · GitHub severity CRITICAL
  6. 2026-09-13 16:47 UTCEPSS rescoreEPSS 2.4% · 82nd percentile
  7. 2026-09-12 15:01 UTCEPSS rescoreEPSS 2.4% · 82nd percentile
  8. 2026-09-11 14:53 UTCEPSS rescoreEPSS 2.4% · 82nd percentile
  9. 2026-09-11 09:37 UTCEPSS rescoreEPSS 2.4% · 82nd percentile
  10. 2026-09-10 09:34 UTCEPSS rescoreEPSS 2.4% · 82nd percentile
  11. 2026-09-08 22:00 UTCEPSS rescoreEPSS 2.4% · 82nd percentile
  12. 2026-09-06 13:47 UTCEPSS rescoreEPSS 2.4% · 82nd percentile
  13. 2026-09-04 05:06 UTCEPSS rescoreEPSS 2.4% · 82nd percentile
  14. 2026-09-02 14:12 UTCEPSS rescoreEPSS 2.4% · 82nd percentile
  15. 2026-09-01 13:54 UTCEPSS rescoreEPSS 2.4% · 82nd percentile
  16. 2026-08-31 00:23 UTCEG score recompute
  17. 2026-08-31 00:23 UTCGHSA enrichmentGHSA-qgvw-vfmj-prrg · GitHub severity CRITICAL
  18. 2026-08-30 19:17 UTCEPSS rescoreEPSS 2.4% · 82nd percentile
  19. 2026-08-30 01:22 UTCEPSS rescoreEPSS 2.4% · 82nd percentile
  20. 2026-08-28 21:41 UTCEPSS rescoreEPSS 2.4% · 82nd percentile
  21. 2026-08-27 14:25 UTCEPSS rescoreEPSS 2.4% · 82nd percentile
  22. 2026-08-26 14:46 UTCEPSS rescoreEPSS 2.4% · 82nd percentile
  23. 2026-08-25 13:49 UTCEPSS rescoreEPSS 2.4% · 82nd percentile
  24. 2026-08-25 04:27 UTCGHSA enrichmentGHSA-qgvw-vfmj-prrg · GitHub severity CRITICAL
  25. 2026-08-25 00:31 UTCEG score recompute
  26. 2026-08-25 00:31 UTCGHSA enrichmentGHSA-qgvw-vfmj-prrg · GitHub severity CRITICAL
  27. 2026-08-23 23:27 UTCGHSA enrichmentGHSA-qgvw-vfmj-prrg · GitHub severity CRITICAL
  28. 2026-08-23 18:48 UTCGHSA enrichmentGHSA-qgvw-vfmj-prrg · GitHub severity CRITICAL
  29. 2026-08-23 14:53 UTCGHSA enrichmentGHSA-qgvw-vfmj-prrg · GitHub severity CRITICAL
  30. 2026-08-23 10:58 UTCEG score recompute
  31. 2026-08-23 10:58 UTCGHSA enrichmentGHSA-qgvw-vfmj-prrg · GitHub severity CRITICAL
  32. 2026-08-23 00:19 UTCEPSS rescoreEPSS 2.4% · 82nd percentile
  33. 2026-08-21 23:49 UTCEPSS rescoreEPSS 2.4% · 82nd percentile
  34. 2026-08-21 23:35 UTCGHSA enrichmentGHSA-qgvw-vfmj-prrg · GitHub severity CRITICAL
  35. 2026-08-21 19:40 UTCGHSA enrichmentGHSA-qgvw-vfmj-prrg · GitHub severity CRITICAL
  36. 2026-08-21 14:32 UTCGHSA enrichmentGHSA-qgvw-vfmj-prrg · GitHub severity CRITICAL
  37. 2026-08-21 10:32 UTCGHSA enrichmentGHSA-qgvw-vfmj-prrg · GitHub severity CRITICAL
  38. 2026-08-21 06:37 UTCGHSA enrichmentGHSA-qgvw-vfmj-prrg · GitHub severity CRITICAL
  39. 2026-08-21 01:14 UTCEG score recompute
  40. 2026-08-21 01:14 UTCGHSA enrichmentGHSA-qgvw-vfmj-prrg · GitHub severity CRITICAL
  41. 2026-08-20 22:55 UTCEPSS rescoreEPSS 2.4% · 82nd percentile
  42. 2026-08-20 21:19 UTCGHSA enrichmentGHSA-qgvw-vfmj-prrg · GitHub severity CRITICAL
  43. 2026-08-20 17:24 UTCGHSA enrichmentGHSA-qgvw-vfmj-prrg · GitHub severity CRITICAL
  44. 2026-08-20 08:54 UTCEG score recompute
  45. 2026-08-20 08:54 UTCGHSA enrichmentGHSA-qgvw-vfmj-prrg · GitHub severity CRITICAL
  46. 2026-08-19 17:04 UTCEPSS rescoreEPSS 2.4% · 82nd percentile
  47. 2026-08-19 15:39 UTCEG score recompute
  48. 2026-08-19 15:39 UTCGHSA enrichmentGHSA-qgvw-vfmj-prrg · GitHub severity CRITICAL
  49. 2026-08-18 13:48 UTCEPSS rescoreEPSS 2.4% · 82nd percentile
  50. 2026-08-17 15:54 UTCEG score recompute
  51. 2026-08-17 15:54 UTCGHSA enrichmentGHSA-qgvw-vfmj-prrg · GitHub severity CRITICAL
  52. 2026-08-17 13:47 UTCEPSS rescoreEPSS 2.4% · 82nd percentile
  53. 2026-08-17 11:59 UTCGHSA enrichmentGHSA-qgvw-vfmj-prrg · GitHub severity CRITICAL
  54. 2026-08-17 08:05 UTCGHSA enrichmentGHSA-qgvw-vfmj-prrg · GitHub severity CRITICAL
  55. 2026-08-17 04:09 UTCGHSA enrichmentGHSA-qgvw-vfmj-prrg · GitHub severity CRITICAL
  56. 2026-08-17 00:12 UTCGHSA enrichmentGHSA-qgvw-vfmj-prrg · GitHub severity CRITICAL
  57. 2026-08-16 15:51 UTCEG score recompute
  58. 2026-08-16 15:51 UTCGHSA enrichmentGHSA-qgvw-vfmj-prrg · GitHub severity CRITICAL
  59. 2026-08-16 14:56 UTCEPSS rescoreEPSS 2.4% · 82nd percentile
  60. 2026-08-16 11:54 UTCGHSA enrichmentGHSA-qgvw-vfmj-prrg · GitHub severity CRITICAL
  61. 2026-08-16 07:59 UTCGHSA enrichmentGHSA-qgvw-vfmj-prrg · GitHub severity CRITICAL
  62. 2026-08-16 04:05 UTCEG score recompute
  63. 2026-08-16 04:05 UTCGHSA enrichmentGHSA-qgvw-vfmj-prrg · GitHub severity CRITICAL
  64. 2026-08-16 02:14 UTCEPSS rescoreEPSS 2.4% · 82nd percentile
  65. 2026-08-16 00:10 UTCGHSA enrichmentGHSA-qgvw-vfmj-prrg · GitHub severity CRITICAL
  66. 2026-08-15 18:56 UTCGHSA enrichmentGHSA-qgvw-vfmj-prrg · GitHub severity CRITICAL
  67. 2026-08-15 15:01 UTCGHSA enrichmentGHSA-qgvw-vfmj-prrg · GitHub severity CRITICAL
  68. 2026-08-15 11:06 UTCGHSA enrichmentGHSA-qgvw-vfmj-prrg · GitHub severity CRITICAL
  69. 2026-08-15 05:58 UTCGHSA enrichmentGHSA-qgvw-vfmj-prrg · GitHub severity CRITICAL
  70. 2026-08-15 01:44 UTCEG score recompute
  71. 2026-08-15 01:44 UTCGHSA enrichmentGHSA-qgvw-vfmj-prrg · GitHub severity CRITICAL
  72. 2026-08-15 01:30 UTCEPSS rescoreEPSS 2.4% · 82nd percentile
  73. 2026-08-14 21:50 UTCGHSA enrichmentGHSA-qgvw-vfmj-prrg · GitHub severity CRITICAL
  74. 2026-08-14 17:55 UTCGHSA enrichmentGHSA-qgvw-vfmj-prrg · GitHub severity CRITICAL
  75. 2026-08-14 13:57 UTCGHSA enrichmentGHSA-qgvw-vfmj-prrg · GitHub severity CRITICAL

Publicly available exploits

(1 reference)

Public exploit code is referenced for this CVE (1 GitHub PoC). No fix is confirmed yet, so defenders should restrict or isolate affected systems accordingly until one is published.

  • GitHub PoCSentinelXofficial/CVE-2026-44963
    Published 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-severity vulnerability; its CVE record was published on June 9, 2026. A vulnerability allowing remote code execution (RCE) on the Backup Server by an authenticated domain user.
When was the CVE record for CVE-2026-44963 published?
The CVE record for CVE-2026-44963 was published on June 9, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of July 23, 2026; the record at its source may have been updated since.
Is CVE-2026-44963 actively exploited?
CVE-2026-44963 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.6% probability of exploitation in the next 30 days (47th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-44963?
CVE-2026-44963 has a CVSS base score of 9.4 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-44963?
No fix for CVE-2026-44963 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The CVE record's CNA (HackerOne) lists Veeam Backup and Replication versions before 12.3.2 as affected. No release containing a fix is confirmed on record. The vendor advisories EchelonGraph has for CVE-2026-44963 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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