Integer overflow in American Megatrends Incorporated (Ami) Bios
CVE-2014-4860
Multiple integer overflows in the Pre-EFI Initialization (PEI) boot phase in the Capsule Update feature in the UEFI implementation in EDK2 allow physically proximate attackers to bypass intended access restrictions by providing crafted data that is not properly handled during the coalescing phase.
Vulnerability class: Integer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.005 (40.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 41st percentile — 40.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- American Megatrends Incorporated (Ami) Bios
- Phoenix Technologies Ltd. Sct3 — versions before 5/23/2014
- Tianocore Edk2
Weakness classification (CWE)
References
- www.kb.cert.org/vuls/id/552286 (US Government Resource, Third Party Advisory)
Frequently asked questions
- What is CVE-2014-4860?
- CVE-2014-4860 is a medium-severity vulnerability in American Megatrends Incorporated (Ami) Bios, classified under Integer Overflow or Wraparound. CVSS score: 6.8/10. Published 2020-01-31.
- How severe is CVE-2014-4860?
- Medium severity. CVSS v3 base score is 6.8 out of 10.