CVE-2018-12182 json
Insufficient memory write check in SMM service for EDK II may allow an authenticated user to potentially enable escalation of privilege, in…
published 2019-03-27 7 y ago modified 2026-06-17 4 mo ago also EUVD-2018-4160
- cvss
- 6.7
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 35%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- edk2 Ubuntu Pro 16.04 LTS 0~20160408.ffea0a2c-2ubuntu0.2+esm1
- edk2 Ubuntu Pro 18.04 LTS 0~20180205.c0d9813c-2ubuntu0.3+esm1
ubuntu advisories UBUNTU-CVE-2018-12182
Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0
Vendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
red hat product security vex CVE-2018-12182 updated cvss 5.3
edk2: insufficient memory write in SMM service leads to privilege escalation
-
Red Hat Enterprise Linux 7 ovmf, OVMF, AAVMF Red Hat Enterprise Linux 8 edk2, edk2-ovmf, edk2-aarch64 Red Hat Virtualization 4 redhat-virtualization-host-image-updatenot affected: vulnerable code not present
Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf
Exploit prediction
0.41% chance of exploitation in the next 30 days, higher than 35% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 6.7 | CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 4.6 | AV:L/AC:L/Au:N/C:P/I:P/A:P |
Affected products
- Extensible Firmware Interface Development Kit (EDK II) Extensible Firmware Interface Development Kit (EDK II)
Classification
- Weakness
-
- CWE-441 Unintended Proxy or Intermediary
References
-
edk2-docs.gitbooks.io
/security-advisory/content/sw-smi-confused-deputy-smramsavestate_c.html
patch, vendor-advisory
-
lists.fedoraproject.org
/archives/list/package-announce%40lists.fedoraproject.org/message/TQYVZRFEXSN3KS43AVH4D7QX553EZQYP/
vendor-advisory
-
securityfocus.com
/bid/107648
vdb-entry
- support.hpe.com /hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03912en_us
Sources
- CVE List CVE-2018-12182
- NVD CVE-2018-12182
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