CVE-2018-8933
The AMD EPYC Server processor chips have insufficient access control for protected memory regions...
The AMD EPYC Server processor chips have insufficient access control for protected memory regions, aka FALLOUT-1, FALLOUT-2, and FALLOUT-3.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
The AMD EPYC Server processor chips have insufficient access control for protected memory regions, aka FALLOUT-1, FALLOUT-2, and FALLOUT-3.
- Record
CVE-2018-8933- CVSS 3.0
- 9.0 Critical
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H - CVSS 2.0
- 9.3 High
AV:N/AC:M/Au:N/C:C/I:C/A:C - Weakness
- CWE-732
- Updated
- 2026-11-02
CVE List No score
The AMD EPYC Server processor chips have insufficient access control for protected memory regions, aka FALLOUT-1, FALLOUT-2, and FALLOUT-3.
- Record
CVE-2018-8933- Updated
- 2026-11-02
EUVDEUVD-2018-20541 No score
The AMD EPYC Server processor chips have insufficient access control for protected memory regions, aka FALLOUT-1, FALLOUT-2, and FALLOUT-3.
- Record
EUVD-2018-20541- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-6582-243r-qxqj
The AMD EPYC Server processor chips have insufficient access control for protected memory regions...
The AMD EPYC Server processor chips have insufficient access control for protected memory regions, aka FALLOUT-1, FALLOUT-2, and FALLOUT-3.
- Record
GHSA-6582-243r-qxqj- CVSS 3.0
- 9.0 Critical
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H - Weakness
- CWE-732
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2018-8933 is a critical vulnerability (CVSS 9.0) in Amd Epyc Server Firmware, published March 22, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.66%, the 76th percentile. No source names a fixed version.
References
support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03841en_us
amdflaws.com
blog.trailofbits.com/2018/03/15/amd-flaws-technical-summary
community.amd.com/community/amd-corporate/blog/2018/03/21/initial-amd-technical-assessment-of-cts-labs-research
safefirmware.com/amdflaws_whitepaper.pdf
nvd.nist.gov/vuln/detail/CVE-2018-8933
github.com/advisories/GHSA-6582-243r-qxqj