CVE-2021-26341
MEDIUMCVSS 6.5/10EPSS 0.31%
Last modified
CVE-2021-26341 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. Some AMD CPUs may transiently execute beyond unconditional direct branches, which may potentially result in data leakage.. EPSS estimates a 0.31% chance of exploitation in the next 30 days.
Description
Some AMD CPUs may transiently execute beyond unconditional direct branches, which may potentially result in data leakage.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Amd | Athlon X4 940 Firmware | All versions |
| Amd | Athlon X4 950 Firmware | All versions |
| Amd | Athlon X4 970 Firmware | All versions |
| Amd | Athlon X4 835 Firmware | All versions |
| Amd | Athlon X4 845 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 750 Firmware | All versions |
| Amd | Athlon X4 760k Firmware | All versions |
| Amd | Ryzen Threadripper Pro 5995wx Firmware | All versions |
| Amd | Ryzen Threadripper Pro 5975wx 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 3970x 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 | 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 9 3950x Firmware | All versions |
| Amd | Ryzen 9 3900x Firmware | All versions |
| Amd | Ryzen 7 3800x Firmware | All versions |
| Amd | Ryzen 7 3700x Firmware | All versions |
| Amd | Ryzen 5 3600x Firmware | All versions |
| Amd | Ryzen 5 3600 Firmware | All versions |
| Amd | Ryzen 5 3400g Firmware | All versions |
| Amd | Ryzen 3 3300x Firmware | All versions |
| Amd | Ryzen 3 3300g Firmware | All versions |
| Amd | Ryzen 3 3100 Firmware | All versions |
| Amd | Ryzen 7 4700g Firmware | All versions |
| Amd | Ryzen 7 4700ge Firmware | All versions |
| Amd | Ryzen 5 4600g Firmware | All versions |
| Amd | Ryzen 5 4600ge Firmware | All versions |
Showing 50 of 126 affected configurations. See NVD for the full list.
References
- http://www.openwall.com/lists/oss-security/2022/03/18/2Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2022/03/18/2Mailing List, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-26341?
Some AMD CPUs may transiently execute beyond unconditional direct branches, which may potentially result in data leakage.
How severe is CVE-2021-26341?
CVE-2021-26341 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.31% probability of exploitation in the next 30 days.
How do I fix CVE-2021-26341?
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.
Related CVEs from 2021
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- CVE-2021-26337Insufficient DRAM address validation in System Management Un…5.5
- CVE-2021-26338Improper access controls in System Management Unit (SMU) may…7.5
- CVE-2021-26339A bug in AMD CPU’s core logic may allow for an attacker, usi…5.5
- CVE-2021-26340A malicious hypervisor in conjunction with an unprivileged a…8.4
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- CVE-2021-26343Insufficient validation in ASP BIOS and DRTM commands may al…5.5
- CVE-2021-26344An out of bounds memory write when processing the AMD PSP1 C…8.2
- CVE-2021-26345Failure to validate the value in APCB may allow a privileged…4.9
- CVE-2021-26346Failure to validate the integer operand in ASP (AMD Secure P…5.5
- CVE-2021-26347Failure to validate the integer operand in ASP (AMD Secure P…4.7
Are you affected by CVE-2021-26341?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST
