CVE-2026-44963

criticalpriority · track · 11EPSS 0.024 · 84 %ileexploit · PoCDEEUNLRU

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

2 exploits · PoC

Likely / severe?

2.35% (84th) EPSS

CVSS 9.9 · critical

Is it mine?

5 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

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

cvss

Technical severity, 0–10. One row per scoring source.

9.9

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.19.9criticalAV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v4.09.4criticalCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:Hsecondary · ENISA EU

v4.09.4criticalCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · support@hackerone.com

v4.09.4criticalCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:A/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-502USCWE-502USCWE-502US

exploits (2)

Public proof-of-concept and weaponised exploit code.

HORKimhab/CVE-2026-44963CVE-2026-44963 - Draft - VeeamPoC · poc_in_github
jockerjml/CVE-2026-44963-veeam-checkerDetection scripts, patch checker & hardening guide for CVE-2026-44963 (Veeam B&R RCE)PoC · poc_in_github

affected products (5)

Products and version ranges known to be affected.

Veeam Backup & Replication <12.3.2.4854all versionscert_bundDE
Veeam Backup & Replication< 12.3.2.4854cert_bundDE
Veeam Backup and Replication0 → 12.3.2enisa_euvdEU
Veeam Software AG Veeam Backup & Replication≤ 12.3.2.4854fstec_bduRU
Veeam Backup & Replication≤ vers:unknown/*ncsc_nlNL

advisories (2)

Vendor and ecosystem advisories describing this.

NCSC-2026-0188Kwetsbaarheid verholpen in Veeam Backup & ReplicationNL2026-06-10csaf · ncsc_nlNL
Veeam heeft een kwetsbaarheid verholpen in Backup & Replication
WID-SEC-W-2026-1834Veeam Backup & Replication: Schwachstelle ermöglicht CodeausführungDeutsch2026-06-08csaf · cert_bundDE
Ein entfernter, authentisierter Angreifer kann eine Schwachstelle in Veeam Backup & Replication ausnutzen, um beliebigen Programmcode auszuführen.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund ncsc_nl NVD CVE.org MITRE

published 2026-06-09modified 2026-07-23

references (4)

External citations — patches, advisories, analysis.

scry

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