Medium severity · published Jan 31, 2020
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…
6.8
CVSS
0.5%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Physical
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 43% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BI
BIOS · American Megatrends Incorporated (AMI)
All versions, or not specified · source: vendor
SC
SCT3 · Phoenix Technologies Ltd.
before 5/23/2014 · source: vendor
ED
Edk2 · Tianocore
All versions, or not specified · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2014-4860
CVE.org
https://www.cve.org/CVERecord?id=CVE-2014-4860
www.kb.cert.org
http://www.kb.cert.org/vuls/id/552286
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