Full Report
Dell security advisory (AV26-343)
Analysis Summary
# Vulnerability: Dell Multi-Product Security Updates (April 2026 Batch)
## CVE Details
*Note: The primary source (AV26-343) refers to a collection of Dell advisories. Specific CVE identifiers vary across the affected product lines below.*
- **CVE ID:** Multiple CVEs (including infrastructure and OS level vulnerabilities)
- **CVSS Score:** Variable (Up to **Critical/High**)
- **CWE:** Varies by product (Commonly includes Improper Input Validation, Buffer Overflows, and Privilege Escalation)
## Affected Systems
- **Connectrix Switches and Directors:** Versions prior to sannav_ova_9x_os_02_2026
- **Data Protection Advisor:** Versions 19.9 to 19.12 SP2
- **Dell AX System:** Multiple versions and models
- **Dell Data Protection Central:** Versions 19.9 to 19.12 (specifically those with OS Update prior to dpc-osupdate-1.1.26-1)
- **Dell EMC Isilon OneFS:** Versions 8.2.2 and prior
- **Dell EMC PowerScale:** Version 9.0.0 and multiple OneFS versions
- **Dell Integrated System (Azure Stack Hub 16G):** Versions prior to 2603
- **Dell Networking OS10:** Versions prior to 10.6.1.1
- **PowerProtect DP Series Appliance:** Versions prior to 2.7.9 (specifically those with OS Update prior to dpc-osupdate-1.1.26-1)
- **Elastic Cloud Storage:** Versions prior to 3.8.1.7
- **ObjectScale:** Versions prior to 4.1.0.3 and 4.2.00
- **PowerSwitch (Z9664F-ON, S5448F-ON, S9664F-ON, E3200-ON):** Various firmware versions prior to the 3.54.x and 3.57.x branches.
## Vulnerability Description
This advisory covers a wide array of technical flaws across the Dell enterprise ecosystem. Key categories of vulnerabilities addressed in this batch typically include:
1. **OS-Level Vulnerabilities:** Security flaws within the underlying Linux-based distributions used in PowerProtect and Data Protection Central.
2. **Network Protocol Flaws:** Issues in OS10 and PowerSwitch firmware that could lead to unauthorized access or service disruption.
3. **Data Storage Weaknesses:** Potential for unauthorized data access or privilege escalation in OneFS and ObjectScale storage environments.
## Exploitation
- **Status:** Not currently reported as exploited in the wild (based on initial advisory).
- **Complexity:** Low to Medium (depending on the specific CVE).
- **Attack Vector:** Primarily Network (Remote) for switch and storage products; Local for certain system-level escalations.
## Impact
- **Confidentiality:** High (Potential unauthorized access to stored data and metadata).
- **Integrity:** High (Potential for system settings modification and firmware tampering).
- **Availability:** High (Potential for Denial of Service (DoS) in networking and storage appliances).
## Remediation
### Patches
Dell recommends updating to the following minimum versions or later:
- **Connectrix:** sannav_ova_9x_os_02_2026
- **Data Protection Central:** Install OS update `dpc-osupdate-1.1.26-1`
- **Networking OS10:** 10.6.1.1
- **ObjectScale:** 4.1.0.3 or 4.2.0.0
- **PowerProtect DP:** Version 2.7.9 with latest OS update.
- **PowerSwitch:** Refer to specific firmware versions 3.54.5.1-11 or 3.57.5.1-6 as applicable.
### Workarounds
- Ensure management interfaces for all switches and storage devices are isolated on dedicated management VLANs.
- Implement strict Access Control Lists (ACLs) to limit access to vulnerable services until patches can be applied.
## Detection
- **Indicators of compromise:** Monitor for unusual administrative logins, unexpected reboots of storage controllers, or unauthorized configuration changes in networking hardware.
- **Detection methods:** Use vulnerability scanners to identify outdated firmware versions and missing OS-level security updates (specifically for Data Protection Central and PowerProtect appliances).
## References
- Dell Security Advisories Portal: hxxps[://]www[.]dell[.]com/support/security/en-ca
- Canadian Centre for Cyber Security Advisory (AV26-343): hxxps[://]www[.]cyber[.]gc[.]ca/en/alerts-advisories/dell-security-advisory-av26-343