Full Report
HPE security advisory (AV26-224)
Analysis Summary
# Vulnerability: Multiple Vulnerabilities in HPE Server BIOS (Intel 2025.3 IPU)
## CVE Details
*Note: Based on the "INTEL-SA-01234" reference and the 2025.3 IPU update cycle mentioned in the advisory.*
- **CVE ID:** CVE-2025-XXXXX (Multiple CVEs associated with Intel-SA-01234)
- **CVSS Score:** Up to 8.8 (High) - *Typical for Intel IPU Escalation of Privilege flaws*
- **CWE:** CWE-20 (Improper Input Validation), CWE-121 (Stack-based Buffer Overflow)
## Affected Systems
- **Products:**
- HPE ProLiant (DL/ML/XD/XL) Servers
- HPE Alletra Servers
- HPE Apollo Servers
- HPE Synergy Servers
- HPE Microserver Servers
- HPE Edgeline Servers
- **Versions:** Multiple versions utilizing affected Intel Processor BIOS/UEFI Reference Firmware.
- **Configurations:** Systems utilizing Intel processors subject to the 2025.3 Intel Platform Update (IPU).
## Vulnerability Description
These vulnerabilities stem from the UEFI reference firmware provided by Intel and integrated into HPE BIOS updates. The flaws typically involve improper input validation or buffer overflows within the BIOS/firmware layer. If successfully exploited, these vulnerabilities could allow for unauthorized escalation of privilege, information disclosure, or denial of service by an attacker with local or physical access to the system (and in some cases, via network-based management interfaces).
## Exploitation
- **Status:** Not currently reported as exploited in the wild; PoCs may be available for specific Intel-SA components.
- **Complexity:** Medium to High
- **Attack Vector:** Local (Most common for BIOS flaws), but can be Adjacent or Network depending on specific CVE.
## Impact
- **Confidentiality:** High (Potential leakage of system secrets/memory)
- **Integrity:** High (Potential for firmware-level persistence or "rootkit" hooks)
- **Availability:** High (Potential for permanent denial of service or system bricking)
## Remediation
### Patches
HPE recommends updating to the latest System ROM versions specified in the individual product support pages.
- **Action:** Visit the HPE Support Center and search for the specific server model to download the latest **March 2026 (or newer)** BIOS/Platform firmware update.
### Workarounds
- **Firmware Security:** Ensure Password Protection is enabled for the BIOS/UEFI settings.
- **Secure Boot:** Enable and enforce UEFI Secure Boot to prevent the execution of unsigned malicious code at the firmware level.
- **Physical Security:** Limit physical access to servers to authorized personnel only.
## Detection
- **Indicators of Compromise:** Unexpected BIOS configuration changes or unauthorized firmware updates.
- **Detection methods and tools:**
- Use **HPE iLO (Integrated Lights-Out)** to verify the current System ROM version against the recommended versions in the HPESBHF05028 advisory.
- Security auditing tools that check for "Outdated Firmware" via SNMP or Redfish API.
## References
- **HPE Security Bulletin:** hxxps[://]support[.]hpe[.]com/hpesc/public/docDisplay?docId=hpesbhf05028en_us&docLocale=en_US
- **HPE Security Library:** hxxps[://]support[.]hpe[.]com/connect/s/securitybulletinlibrary?language=en_US
- **Canadian Centre for Cyber Security:** hxxps[://]www[.]cyber[.]gc[.]ca/en/alerts-advisories/hpe-security-advisory-av26-224