Veeam Backup and Replication 10 before 10.0.1.4854 P20210609 and 11 before 11.0.0.837…
Priority MEDIUM 45CWE-502Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-502.
Summary
Veeam Backup and Replication 10 before 10.0.1.4854 P20210609 and 11 before 11.0.0.837 P20210507 mishandles deserialization during Microsoft .NET remoting.
Why it matters now
EPSS 0.01239 69th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:veeam:veeam_backup_\&_replication:*:*:*:*:*:*:*:* | 10.0 to before 10.0.1.4854; 11.0 to before 11.0.0.837 | Vulnerable | Veeam |
- cpe:2.3:a:veeam:veeam_backup_\&_replication:*:*:*:*:*:*:*:* Versions 10.0 to before 10.0.1.4854; 11.0 to before 11.0.0.837 Vulnerable ·Veeam
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-35971
- 2026-10-03 Alias added: GHSA-vmw6-j58p-9p55
References
More Veeam Backup & Replication vulnerabilities
- TI-2024-27107 Deserialization of untrusted data in Veeam Backup and Recovery KEVCVSS 3.1CRITICAL 9.8
- TI-2022-09844 Veeam Backup & Replication 10.x and 11.x has Incorrect Access Control (issue 1 of 2). KEVCVSS 3.1CRITICAL 9.8
- TI-2022-09843 Improper limitation of path names in Veeam Backup & Replication 9.5U3, 9.5U4,10.x, and… KEVCVSS 3.1HIGH 8.8
- TI-2023-12256 Missing authentication in Veeam Backup & Replication KEVCVSS 3.1HIGH 7.5
- TI-2024-19623 Veeam Backup Enterprise Manager allows unauthenticated users to log in as any user to enterprise manager web interface. CVSS 3.0CRITICAL 9.8
- TI-2025-16913 A vulnerability allowing remote code execution (RCE) on the Backup Server by an authenticated domain user CVSS 3.1HIGH 8.8
Sources
- CVE-2021-35971 · CVE Program
- CVE-2021-35971 · NVD
- FIRST EPSS
- GHSA-vmw6-j58p-9p55 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences