AMD Speculative Code Store Bypass
Priority LOW 25CWE-208Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-208.
Summary
Potential speculative code store bypass in all supported CPU products, in conjunction with software vulnerabilities relating to speculative execution of overwritten instructions, may cause an incorrect speculation and could result in data leakage.
Why it matters now
EPSS 0.00328 26th percentileScored 2026-11-07
Fix Fixed All supported processors (AMD): undefined
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| AMD | All supported processors | before undefined | undefined | Patch available | CNA |
- All supported processors VendorAMD Affected before undefined Fixed in undefined Patch available CNA
CPE configurations NVD · 11
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:* | all versions | Vulnerable | Xen |
| cpe:2.3:h:amd:ryzen_5_5600x:-:*:*:*:*:*:*:* | not specified by NVD | Running on | AMD |
| cpe:2.3:h:amd:ryzen_7_2700x:-:*:*:*:*:*:*:* | not specified by NVD | Running on | AMD |
| cpe:2.3:h:amd:ryzen_threadripper_2990wx:-:*:*:*:*:*:*:* | not specified by NVD | Running on | AMD |
| cpe:2.3:h:arm:cortex-a72:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Arm |
| cpe:2.3:h:broadcom:bcm2711:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Broadcom |
| cpe:2.3:h:intel:core_i7-10700k:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Intel |
| cpe:2.3:h:intel:core_i7-7700k:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Intel |
| cpe:2.3:h:intel:core_i9-9900k:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Intel |
| cpe:2.3:h:intel:xeon_silver_4214:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Intel |
- cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Xen
- cpe:2.3:h:amd:ryzen_5_5600x:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·AMD
- cpe:2.3:h:amd:ryzen_7_2700x:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·AMD
- cpe:2.3:h:amd:ryzen_threadripper_2990wx:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·AMD
- cpe:2.3:h:arm:cortex-a72:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Arm
- cpe:2.3:h:broadcom:bcm2711:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Broadcom
- cpe:2.3:h:intel:core_i7-10700k:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Intel
- cpe:2.3:h:intel:core_i7-7700k:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Intel
- cpe:2.3:h:intel:core_i9-9900k:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Intel
- cpe:2.3:h:intel:xeon_silver_4214:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Intel
Remediation
- Fix · CNA All supported processors (AMD) Fixed in undefined
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
AMD All supported processors undefined
2 records Highest priority Priority LOW 2 LOW
Other records, highest priority first
- TI-2021-08142 AMD Speculative execution with Floating-Point Value InjectionPriority LOW 26
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2021-26313
- 2026-10-03 Alias added: GHSA-vj56-jg6h-3gpr
References
More AMD vulnerabilities
- TI-2026-36341 AI Tensor Engine for ROCm (AITER) 0.1.14 Unauthenticated RCE via MessageQueue.recv() Pickle Deserialization CVSS 4.0CRITICAL 9.2
- TI-2023-07046 Improper privilege management in AMD Radeon™ RX 5000 Series Graphics Cards CVSS 3.1HIGH 7.8
- TI-2023-04574 GPU kernel implementations susceptible to memory leak CVSS 3.1MEDIUM 6.5
- TI-2023-07042 Information disclosure through error messages in AMD Ryzen™ 3000 Series Desktop… CVSS 3.1MEDIUM 5.5
- TI-2023-23747 PVRIC (PowerVR Image Compression) on Imagination 2018 and later GPU devices offers… CVSS 3.1MEDIUM 5.3
- TI-2022-07839 Improper access control in System Management Mode (SMM) may allow an attacker to write to… CVSS 3.1CRITICAL 9.8
Sources
- CVE-2021-26313 · CVE Program
- CVE-2021-26313 · NVD
- FIRST EPSS
- GHSA-vj56-jg6h-3gpr · GitHub Advisory Database · CC BY 4.0
- CVE-2021-26313 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences