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CVE-2021-35971: 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.
CVE-2021-35971 · published 5 years ago
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.
What to do
The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.
Affected software
| Vendor | Product | Affected versions |
|---|---|---|
| veeam | veeam_backup_\&_replication |
>= 10.0, < 10.0.1.4854 >= 11.0, < 11.0.0.837 cpe:2.3:a:veeam:veeam_backup_\&_replication:*:*:*:*:*:*:*:* |
Original advisory text
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.
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.
References
- https://www.veeam.com/kb4126 Release Notes Vendor Advisory
- https://www.veeam.com/kb4180 Release Notes Vendor Advisory
Internet-facing
3 days
Internal
60 days
- Not known to be exploited
- Can be exploited automatically (estimated)
- Gives an attacker full control (estimated)
Type
CWE-502Deserialization of Untrusted Data
Timeline
Published30 Jun 2021
Updated4 Nov 2026
First seen29 Sep 2026
Sources
CVE-2021-35971 · NVD
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