CVE-2026-111560 Barracuda Networks Multiple Products: command or code injection
In plain words: The program treats text it receives as instructions instead of plain data. The attacker can run commands on the machine — often the whole device is taken over.
Confirmed exploited by CISA on · US federal patch deadline Nov 13, 2026
What to do
- Install Barracuda Networks's security update for Multiple Products. If no update exists, follow the vendor's workaround or stop using the product until one ships.
- Patch edge devices first — attackers often start scanning for them within hours of a fix.
- Never expose the device's admin page to the internet.
- After patching a device that was exposed, follow the vendor's compromise checks, end active sessions and change passwords.
Who is affected
Work IT. Aimed mostly at company systems — you are affected through the companies you use, not your own phone.
What's at risk: They face the internet and guard the whole network, so a flaw here can hand attackers a way in — and these devices usually run no antivirus, so break-ins go unnoticed.
The details
- Official name
- Barracuda Networks Multiple Products OS Command Injection Vulnerability
- Product
- Barracuda Networks Multiple Products
- CISA description
- Barracuda Networks Email Security Gateway (ESG), Load Balancer, Application Delivery Controller (ADC), Message Archiver (BMA), WAF Control Center (WCC), Web Application Firewall (WAF), and Web Security Gateway (WSG) contain an OS command injection vulnerability. This vulnerability could allow an authenticated administrator to inject OS commands that execute with root privileges when the crafted timezone value is subsequently processed. This vulnerability can be chained with CVE-2026-116606
- Type of flaw
- Command or code injection (CWE-78)
- Confirmed exploited
- Nov 10, 2026
- US federal patch deadline
- Nov 13, 2026
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Answering about CVE-2026-111560 ·
Questions about CVE-2026-111560
Is CVE-2026-111560 being exploited?
Yes. CISA added CVE-2026-111560 to its Known Exploited Vulnerabilities catalog on Nov 10, 2026, which means there is reliable evidence of real-world attacks.
How do I fix CVE-2026-111560?
Install Barracuda Networks's security update for Multiple Products. If no update exists, follow the vendor's workaround or stop using the product until one ships. Patch edge devices first — attackers often start scanning for them within hours of a fix.
Am I affected by CVE-2026-111560?
Only if you use Barracuda Networks Multiple Products. Aimed mostly at company systems — you are affected through the companies you use, not your own phone.