What is CVE-2018-12182?

CVE-2018-12182 is a medium-severity vulnerability in Extensible Firmware Interface Development Kit (Edk Ii), classified under Unintended Proxy or Intermediary (Confused Deputy). CVSS score: 6.7/10. Published 2019-03-27.

How severe is CVE-2018-12182?

Medium severity. CVSS v3 base score is 6.7 out of 10.

Vulnerability in Extensible Firmware Interface Development Kit (Edk Ii)

CVE-2018-12182

Insufficient memory write check in SMM service for EDK II may allow an authenticated user to potentially enable escalation of privilege, information disclosure and/or denial of service via local access.

Published 2019-03-27 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.004 (33.0th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 33rd percentile — 33.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-441 — Unintended Proxy or Intermediary (Confused Deputy)

References

edk2-docs.gitbooks.io/security-advisory/content/sw-smi-confused-deputy-smramsav… (Patch, Vendor Advisory)
www.securityfocus.com/bid/107648 (vdb-entry)
support.hpe.com/hpsc/doc/public/display
lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)

Frequently asked questions

What is CVE-2018-12182?: CVE-2018-12182 is a medium-severity vulnerability in Extensible Firmware Interface Development Kit (Edk Ii), classified under Unintended Proxy or Intermediary (Confused Deputy). CVSS score: 6.7/10. Published 2019-03-27.
How severe is CVE-2018-12182?: Medium severity. CVSS v3 base score is 6.7 out of 10.