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CVE-2021-26314

AMD Speculative execution with Floating-Point Value Injection

MEDIUM
5.5
CVSS Score
Published: June 9, 2021 at 11:23 AM UTC
Updated: June 17, 2026 at 03:43 AM UTC
8 products affected across 5 vendorsFedoraXenCore I9-9900k· also runs on 3 platforms

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.6%

Description

Potential floating point value injection in all supported CPU products, in conjunction with software vulnerabilities relating to speculative execution with incorrect floating point results, may cause the use of incorrect data from FPVI and may result in data leakage.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Cortex-A72· Arm
95%
All versions
BCM2711· Broadcom
95%
All versions
Fedora· Fedora Projectrpm
95%
3334
Core I7-10700k· Intel
95%
All versions
Core I7-7700k· Intel
95%
All versions
Core I9-9900k· Intel
95%
All versions
Xeon Silver 4214· Intel
95%
All versions
Xen· Xenwordpress-plugin
95%
All versions
amd-ryzen-5-5600x (environment) · amd-ryzen-7-2700x (environment) · amd-ryzen-threadripper-2990wx (environment)

Runs on — not affected

The affected product only carries this flaw when running on these platforms. The platforms themselves are not vulnerable.

References (5)

Mailing Listx_refsource_MLISTThird Party Advisory
Source: [email protected]
http://www.openwall.com/lists/oss-security/2021/06/09/2
Mailing Listx_refsource_MLISTExploitThird Party Advisory
Source: [email protected]
http://www.openwall.com/lists/oss-security/2021/06/10/1
Vendor Advisoryx_refsource_FEDORA
Source: [email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/H36U6CNREC436W6GYO7QUMJIVEA35SCV/
Vendor Advisoryx_refsource_FEDORA
Source: [email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SVA2NY26MMXOODUMYZN5DCU3FXMBMBOB/
x_refsource_MISCVendor Advisory
Source: [email protected]
https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1003

CVSS

5.5MEDIUM[email protected]
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-208CWE-203

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