CVE-2026-21709: CWE-77 Command Injection - Generic in Veeam Backup and Replication
CVE-2026-21709 is a command injection vulnerability (CWE-77) in Veeam Backup and Replication version 12. It allows a local attacker with administrator privileges to bypass Windows Driver Signature Enforcement. The vulnerability is published but currently lacks an official patch or remediation guidance. There are no known exploits in the wild at this time.
AI Analysis
Technical Summary
This vulnerability in Veeam Backup and Replication 12 involves command injection that enables a local administrator-level attacker to bypass Windows Driver Signature Enforcement. The vulnerability is identified as CWE-77, indicating improper neutralization of special elements used in a command. No CVSS score or detailed technical exploitation information is available. No patch or official remediation has been published yet.
Potential Impact
If exploited, a local attacker with administrator privileges could bypass Windows Driver Signature Enforcement, potentially allowing unsigned or malicious drivers to load. This could undermine system integrity and security controls dependent on driver signing. However, exploitation requires local administrator access, limiting the attack vector.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict local administrator access to trusted personnel only and monitor for unusual activity related to driver loading.
CVE-2026-21709: CWE-77 Command Injection - Generic in Veeam Backup and Replication
Description
CVE-2026-21709 is a command injection vulnerability (CWE-77) in Veeam Backup and Replication version 12. It allows a local attacker with administrator privileges to bypass Windows Driver Signature Enforcement. The vulnerability is published but currently lacks an official patch or remediation guidance. There are no known exploits in the wild at this time.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Veeam Backup and Replication 12 involves command injection that enables a local administrator-level attacker to bypass Windows Driver Signature Enforcement. The vulnerability is identified as CWE-77, indicating improper neutralization of special elements used in a command. No CVSS score or detailed technical exploitation information is available. No patch or official remediation has been published yet.
Potential Impact
If exploited, a local attacker with administrator privileges could bypass Windows Driver Signature Enforcement, potentially allowing unsigned or malicious drivers to load. This could undermine system integrity and security controls dependent on driver signing. However, exploitation requires local administrator access, limiting the attack vector.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict local administrator access to trusted personnel only and monitor for unusual activity related to driver loading.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- hackerone
- Date Reserved
- 2026-01-04T15:00:06.574Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69e253e3bdfbbecc593fb259
Added to database: 4/17/2026, 3:38:11 PM
Last enriched: 4/17/2026, 3:53:25 PM
Last updated: 4/17/2026, 4:40:21 PM
Views: 6
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.