HOMEVULNERABILITIESCVE-2014-4860
MEDIUM

CVE-2014-4860

CWE-190Published: January 31, 2020· Updated: Jun 17, 2026

6.8
CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2014-4860 requires local access, meaning attackers must already have a foothold on the target system.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 6.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorPhysical
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

tianocore1 product(s)
edk2
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttp://www.kb.cert.org/vuls/id/552286
ADVISORYhttp://www.kb.cert.org/vuls/id/552286

All References (2)

→
http://www.kb.cert.org/vuls/id/552286Third Party Advisory · US Government Resource
→
http://www.kb.cert.org/vuls/id/552286Third Party Advisory · US Government Resource

Quick Facts

CVE IDCVE-2014-4860
CVSS Score6.8 / 10
SeverityMEDIUM
WeaknessCWE-190
CISA KEVNo
Affected1 vendor(s)
PublishedJan 31, 2020

Related CVEs (CWE-190)

CVE-2012-5143
10.0
CVE-2015-5108
10.0
CVE-2008-2663
10.0
CVE-2010-1233
10.0
CVE-2015-5097
10.0
CVE-2013-2555
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2014-4860 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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