CVE-2014-4859 json
Integer overflow in the Drive Execution Environment (DXE) phase in the Capsule Update feature in the UEFI implementation in EDK2 allows phy…
published 2020-01-31 6 y ago modified 2026-06-17 4 mo ago also EUVD-2014-4778
- cvss
- 6.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 48%
- public exploits
- 0
- none known
Summary
Integer overflow in the Drive Execution Environment (DXE) phase in the Capsule Update feature in the UEFI implementation in EDK2 allows physically proximate attackers to bypass intended access restrictions via crafted data.
Exploit prediction
0.59% chance of exploitation in the next 30 days, higher than 48% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 6.8 | CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.2 | AV:L/AC:L/Au:N/C:C/I:C/A:C |
Affected products
- Phoenix Technologies Ltd. SCT3
- American Megatrends Incorporated (AMI) BIOS
Classification
- Weakness
-
- CWE-190 Integer Overflow or Wraparound
References
-
kb.cert.org
/vuls/id/552286
third-party-advisory, us-government-resource
Sources
- CVE List CVE-2014-4859
- NVD CVE-2014-4859
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