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PatchSiren cyber security CVE debrief

CVE-2016-8226 Lenovo CVE debrief

CVE-2016-8226 is a firmware denial-of-service issue in Lenovo BIOS for System X M5, M6, and X6 platforms. According to the NVD record, an administrator with high privileges can trigger a DoS condition while updating a UEFI data structure.

Vendor
Lenovo
Product
CVE-2016-8226
CVSS
MEDIUM 4.9
CISA KEV
Not listed in stored evidence
Original CVE published
2017-01-26
Original CVE updated
2026-05-13
Advisory published
2017-01-26
Advisory updated
2026-05-13

Who should care

Administrators and teams responsible for Lenovo System X M5, M6, and X6 servers, especially those managing BIOS/UEFI updates and datacenter firmware maintenance.

Technical summary

The NVD entry maps this issue to CWE-19 and a CVSS 3.0 vector of AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H, indicating network-reachable impact with high privileges required and availability as the primary impact. The vulnerable Lenovo BIOS CPEs listed by NVD cover multiple System X and Flex System platforms, and the vendor advisory is the primary remediation reference.

Defensive priority

Medium. The issue requires high privileges, but it can still disrupt server availability during BIOS or UEFI management operations on affected Lenovo systems.

Recommended defensive actions

  • Review Lenovo advisory LEN-11306 for the vendor's remediation guidance.
  • Identify whether any Lenovo System X M5, M6, or X6 systems in your environment match the vulnerable BIOS CPEs listed by NVD.
  • Apply Lenovo BIOS/firmware updates from the vendor advisory when available.
  • Restrict BIOS and UEFI management rights to trusted administrators only.
  • Schedule firmware changes in controlled maintenance windows and verify rollback procedures before updating.
  • Validate post-update system stability on a small subset of affected systems before broader rollout.

Evidence notes

This debrief is based on the NVD CVE record and Lenovo's vendor advisory reference included in the source corpus. The NVD data identifies the affected Lenovo BIOS CPEs, the CWE-19 weakness, and the CVSS vector showing availability impact with high privileges required. No exploit mechanics beyond the published summary are included.

Official resources

Publicly disclosed in the CVE record on 2017-01-26. The NVD entry was later modified on 2026-05-13; that modification date does not change the original disclosure date.