Vulnerability Details : CVE-2021-26313
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.
Exploit prediction scoring system (EPSS) score for CVE-2021-26313
Probability of exploitation activity in the next 30 days: 0.05%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 19 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2021-26313
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
|---|---|---|---|---|---|
|
2.1
|
LOW | AV:L/AC:L/Au:N/C:P/I:N/A:N |
3.9
|
2.9
|
NIST |
|
5.5
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
1.8
|
3.6
|
NIST |
CWE ids for CVE-2021-26313
-
The product behaves differently or sends different responses under different circumstances in a way that is observable to an unauthorized actor, which exposes security-relevant information about the state of the product, such as whether a particular operation was successful or not.Assigned by: nvd@nist.gov (Primary)
-
Two separate operations in a product require different amounts of time to complete, in a way that is observable to an actor and reveals security-relevant information about the state of the product, such as whether a particular operation was successful or not.Assigned by: psirt@amd.com (Secondary)
References for CVE-2021-26313
-
https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1003
Access DeniedVendor Advisory
Products affected by CVE-2021-26313
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
- cpe:2.3:h:intel:core_i7-7700k:-:*:*:*:*:*:*:*
- cpe:2.3:h:intel:xeon_silver_4214:-:*:*:*:*:*:*:*
- cpe:2.3:h:intel:core_i9-9900k:-:*:*:*:*:*:*:*
- cpe:2.3:h:intel:core_i7-10700k:-:*:*:*:*:*:*:*
- cpe:2.3:h:broadcom:bcm2711:-:*:*:*:*:*:*:*
- cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:*
- cpe:2.3:h:arm:cortex-a72:-:*:*:*:*:*:*:*