CVE-2026-44963
A vulnerability allowing remote code execution (RCE) on the Backup Server by an authenticated...
A vulnerability allowing remote code execution (RCE) on the Backup Server by an authenticated domain user.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
A vulnerability allowing remote code execution (RCE) on the Backup Server by an authenticated domain user.
- Record
CVE-2026-44963- CVSS 4.0
- 9.4 Critical
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H - Weakness
- CWE-502
- Updated
- 2026-11-02
EUVDEUVD-2026-35868
A vulnerability allowing remote code execution (RCE) on the Backup Server by an authenticated domain user.
- Record
EUVD-2026-35868- CVSS 4.0
- 9.4 Critical
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-qgvw-vfmj-prrg
A vulnerability allowing remote code execution (RCE) on the Backup Server by an authenticated...
A vulnerability allowing remote code execution (RCE) on the Backup Server by an authenticated domain user.
- Record
GHSA-qgvw-vfmj-prrg- CVSS 4.0
- 9.4 Critical
CVSS: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:X - Weakness
- CWE-502
- Updated
- 2026-11-02
NVD
A vulnerability allowing remote code execution (RCE) on the Backup Server by an authenticated domain user.
- Record
CVE-2026-44963- CVSS 4.0
- 9.4 Critical
CVSS: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:X - Weakness
- CWE-502
- Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| PoC in GitHub | HORKimhab/CVE-2026-44963 | 2026-06-10 |
| PoC in GitHub | jockerjml/CVE-2026-44963-veeam-checker | 2026-06-18 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, PoC in GitHub |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-44963 is a critical vulnerability (CVSS 9.4) in Veeam Backup And Replication, published June 9, 2026. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 2.35%, the 83rd percentile. No source names a fixed version.