CVE-2022-27672
No known exploitation. EPSS puts it in the 19th percentile. A vendor fix is available.
What to do
The vendor has published a fix. Version details are below where the sources state them.
What it is
From the CVE record
When SMT is enabled, certain AMD processors may speculatively execute instructions using a target from the sibling thread after an SMT mode switch potentially resulting in information disclosure.
In plain language
No plain-language summary for this CVE yet.
Exploitation
Where each signal puts this CVE on the scale from published to confirmed exploited.
- CISA KEV
Not in the catalog. CISA has not confirmed exploitation.
- Public exploits
No public exploit or proof of concept found in the sources we track.
- EPSS
0.3% chance of exploitation activity in the next 30 days, which ranks it in the 19th percentile of scored CVEs.
Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.
Lifecycle
6 events over 1227 days, from the signal feeds we watch.
- OpenVAS check added
- Patch availableworkaround available, record updated
- Publishedweakness classified
Affected products
- 1st Gen AMD EPYC™ ProcessorsHardware Firmware
- 2nd Gen AMD EPYC™ ProcessorsHardware Firmware
- Athlon™ X4 ProcessorHardware Firmware
- Ryzen™ Threadripper™ PRO ProcessorHardware Firmware
- 2nd Gen AMD Ryzen™ Threadripper™ ProcessorsHardware Firmware
- 3rd Gen AMD Ryzen™ Threadripper™ ProcessorsHardware Firmware
- 7th Generation AMD A-Series APUsHardware Firmware
- Ryzen™ 2000 Series ProcessorsHardware Firmware
- 1st Gen AMD EPYCHardware Firmware
- 2nd Gen AMD EPYCHardware Firmware
- AMD Ryzen 2000 series DesktopHardware Firmware
- AMD Ryzen 3000 Series DesktopHardware Firmware
- AMD Ryzen 4000 Series Desktop processors with Radeon graphicsHardware Firmware
- 2nd Gen AMD Ryzen ThreadripperHardware Firmware
- 3rd Gen AMD Ryzen ThreadripperHardware Firmware
- AMD Ryzen Threadripper PRO processorsHardware Firmware
And 178 more affected products. See all after sign-in
Technical detail
CVSS 3.1 vector
Open in the CVSS calculatorCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Scored 4.7 by NVD.
How it is reached
- Attack Vector LocalRequires local access to the vulnerable system (e.g. local login, malicious file)
- Attack Complexity HighRequires specific conditions like a race condition or non-default configuration
- Privileges Required LowRequires basic user-level privileges
- User Interaction NoneNo user interaction needed — fully automated exploitation
Scope
- Scope UnchangedImpact is limited to the vulnerable component itself
Impact if exploited
- Confidentiality HighTotal information disclosure — all data in the component is compromised
- Integrity NoneNo integrity impact
- Availability NoneNo availability impact
Weaknesses
Sources
References in the record
- amd.com/en/corporate/product-security/bulletin/AMD-SB-1045
- security.gentoo.org/glsa/202402-07
- cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-27672&
And 12 more references. See all after sign-in
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