CVE-2022-27672
MEDIUMCVSS 4.7/10EPSS 0.29%
Last modified
CVE-2022-27672 is a medium-severity vulnerability rated 4.7/10 on the CVSS scale. 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.. EPSS estimates a 0.29% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Amd | Athlon X4 750 Firmware | All versions |
| Amd | Athlon X4 760k Firmware | All versions |
| Amd | Athlon X4 830 Firmware | All versions |
| Amd | Athlon X4 840 Firmware | All versions |
| Amd | Athlon X4 860k Firmware | All versions |
| Amd | Athlon X4 870k Firmware | All versions |
| Amd | Athlon X4 880k Firmware | All versions |
| Amd | Athlon X4 835 Firmware | All versions |
| Amd | Athlon X4 845 Firmware | All versions |
| Amd | Athlon X4 940 Firmware | All versions |
| Amd | Athlon X4 950 Firmware | All versions |
| Amd | Athlon X4 970 Firmware | All versions |
| Amd | Ryzen Threadripper Pro 5995wx Firmware | All versions |
| Amd | Ryzen Threadripper Pro 5975w Firmware | All versions |
| Amd | Ryzen Threadripper Pro 5965wx Firmware | All versions |
| Amd | Ryzen Threadripper Pro 5955wx Firmware | All versions |
| Amd | Ryzen Threadripper Pro 5945wx Firmware | All versions |
| Amd | Ryzen Threadripper 2990wx Firmware | All versions |
| Amd | Ryzen Threadripper 2970wx Firmware | All versions |
| Amd | Ryzen Threadripper 2950x Firmware | All versions |
| Amd | Ryzen Threadripper 2920x Firmware | All versions |
| Amd | Ryzen Threadripper 3960x Firmware | All versions |
| Amd | Ryzen Threadripper 3970x Firmware | All versions |
| Amd | Ryzen Threadripper 3990x Firmware | All versions |
| Amd | A12-9730p Firmware | All versions |
| Amd | A12-9700p Firmware | All versions |
| Amd | A10-9630p Firmware | All versions |
| Amd | A10-9600p Firmware | All versions |
| Amd | A9-9420 Firmware | All versions |
| Amd | A9-9410 Firmware | All versions |
| Amd | A6-9220 Firmware | All versions |
| Amd | A6-9220c Firmware | All versions |
| Amd | A6-9210 Firmware | All versions |
| Amd | A4-9120 Firmware | All versions |
| Amd | A4-9120c Firmware | All versions |
| Amd | Ryzen 7 2700x Firmware | All versions |
| Amd | Ryzen 7 2700 Firmware | All versions |
| Amd | Ryzen 5 2600x Firmware | All versions |
| Amd | Ryzen 5 2600 Firmware | All versions |
| Amd | Ryzen 3 1200 Firmware | All versions |
| Amd | Ryzen 3 2300x Firmware | All versions |
| Amd | Ryzen 5 1600 Af Firmware | All versions |
| Amd | Ryzen 5 2500x Firmware | All versions |
| Amd | Ryzen 7 2700e Firmware | All versions |
| Amd | Ryzen 3 3100 Firmware | All versions |
| Amd | Ryzen 3 3300x Firmware | All versions |
| Amd | Ryzen 5 3500 Firmware | All versions |
| Amd | Ryzen 5 3500x Firmware | All versions |
| Amd | Ryzen 5 3600 Firmware | All versions |
| Amd | Ryzen 5 3600x Firmware | All versions |
Showing 50 of 165 affected configurations. See NVD for the full list.
References
- https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1045Mitigation, Vendor Advisory
- https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1045Mitigation, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2022-27672?
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.
How severe is CVE-2022-27672?
CVE-2022-27672 has a CVSS score of 4.7/10 (MEDIUM severity). The EPSS model estimates a 0.29% probability of exploitation in the next 30 days.
How do I fix CVE-2022-27672?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2022-27672?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST