CVE-2026-111560: OS Command Injection in Barracuda Appliances
Advisory generated from the CVE record, CISA, Exploit Observer and VEDAS: what it is, whether it is exploited, who is affected, and how to fix and detect it.
Generated by VEDAS. Scores as of 2026-11-08 00:03 UTC. Rebuilt every few hours from cve-scores, CISA KEV and vedas-signatures. How this works and its limits.
What it is
Improper neutralization of shell metacharacters in the timezone configuration field in certain Barracuda appliance products using common Barracuda code allows an authenticated administrator to inject OS commands that execute with root privileges when the crafted timezone value is subsequently processed.
Description quoted from the CVE record (assigned by Mandiant, published 2026-11-02).
Weakness: CWE-78 Improper neutralization of special elements used in an OS command (‘OS command injection’)
How it can be exploited
Exploitable over the network with low attack complexity with no special attack requirements needing high privileges and no user interaction. Impact: confidentiality high, integrity high, availability high. CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CISA assessment (SSVC): CISA has no evidence of exploitation. Automatable: no. Technical impact: total.
Public exploit evidence (Exploit Observer)
Exploit Observer found 1 code repository and 1 research write-up naming this CVE.
Code repositories that name a CVE are often scanners, copies or fakes, and some are malware. Read the code before running anything.
See all 4 references on Exploit Observer
Live scores
- EPSS
- 0.005
low predicted chance of attack - VEDAS
- 0.512
likely exploited - On CISA KEV
- Not listed
- Detection rule
- No public rule yet
Who is affected
| Product | Affected | Not affected |
|---|---|---|
| Barracuda Networks Barracuda Email Security Gateway (ESG) | up to and including 9.4.0.27 | Not stated |
| Barracuda Networks Barracuda Load Balancer Application Delivery Controller (ADC) | up to and including 6.4.0 | Not stated |
| Barracuda Networks Barracuda Web Application Firewall (WAF) | up to and including 11.0.1 | Not stated |
| Barracuda Networks Barracuda Web Security Gateway (WSG) | up to and including 16.1.100.100 | Not stated |
| Barracuda Networks Barracuda Message Archiver (BMA) | up to and including 5.5.4.0 | Not stated |
| Barracuda Networks Barracuda WAF Control Center (WCC) | up to and including 2.2.1 | Not stated |
Version ranges exactly as the CVE record states them. “Before X” means X is the first fixed version.
How to fix it
Vendor guidance:
- https://trust.barracuda.com/security/pre-authentication-authorization-bypass-command-injection (vendor-advisory)
How to detect it
There is no open VEDAS detection rule for this bug yet. It is listed on the detection gaps page if CISA has confirmed attacks.
Advisories on this CVE
- Barracuda warns of critical flaws that chain to root access on Email Security Gateway and other appliances (full advisory)
References
Vendor advisories and patches
- https://trust.barracuda.com/security/pre-authentication-authorization-bypass-command-injection (vendor-advisory)
Technical analysis and advisories
- https://github.com/mandiant/Vulnerability-Disclosures/blob/master/2026/MNDT-2026-0041.md (third-party-advisory)
Other databases
Where this comes from
This advisory is generated automatically by VEDAS from: CVE.org record, cve-scores (EPSS and VEDAS), Exploit Observer. Text in quotes is reproduced from the source; everything else is a fixed template filled with source fields. Nothing here is written by a language model. Check the vendor advisory before acting, and read how VEDAS and Exploit Observer work, and their limits.
Supporting partners
