CVE-2016-5247
CVE-2016-5247 is a high-severity vulnerability in Lenovo Bios with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-254.
Key facts
- Severity: High (CVSS 3.x base score 7.8)
- CVSS v2: 7.2
- EPSS exploit prediction: 0% (30th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-254
- Affected product: Lenovo Bios
- Published:
- Last modified:
Description
The BIOS for Lenovo ThinkCentre E93, M6500t/s, M6600, M6600q, M6600t/s, M73p, M800, M83, M8500t/s, M8600t/s, M900, M93, and M93P devices; ThinkServer RQ940, RS140, TS140, TS240, TS440, and TS540 devices; and ThinkStation E32, P300, and P310 devices might allow local users or physically proximate attackers to bypass the Secure Boot protection mechanism by leveraging an AMI test key.
Frequently asked questions
- What is CVE-2016-5247?
- The BIOS for Lenovo ThinkCentre E93, M6500t/s, M6600, M6600q, M6600t/s, M73p, M800, M83, M8500t/s, M8600t/s, M900, M93, and M93P devices; ThinkServer RQ940, RS140, TS140, TS240, TS440, and TS540 devices; and ThinkStation E32, P300, and P310 devices might allow local users or physically proximate attackers to bypass the Secure Boot protection mechanism by leveraging an AMI test key.
- How severe is CVE-2016-5247?
- CVE-2016-5247 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2016-5247 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (30th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2016-5247?
- CVE-2016-5247 affects Lenovo Bios. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2016-5247?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2016-5247 published?
- CVE-2016-5247 was published on 2016-09-22 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:o:lenovo:bios:-:*:*:*:*:*:*:*
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