Vulnerability Monitor

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CVE-2021-26314

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.

Security Impact Summary

This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 5.5, requiring local system access to exploit with relatively low complexity without requiring user interaction requiring only low-level privileges . The vulnerability impacts confidentiality (data exposure), for affected systems. Impacting 11 products from xen, from amd, from amd and 8 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

Reported in 2021, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.

Published

2021-06-09T12:15:07.810

Last Modified

2024-11-21T05:56:04.547

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 5.5 (MEDIUM)

CVSSv2 Vector

AV:L/AC:L/Au:N/C:P/I:N/A:N

Access Vector: LOCAL
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: NONE
Availability Impact: NONE

Exploitability Score

3.9

Impact Score

2.9

Weaknesses

Type: Secondary
CWE-208
Type: Primary
CWE-203

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	xen	xen	*	Yes
Hardware	amd	ryzen_5_5600x	-	No
Hardware	amd	ryzen_7_2700x	-	No
Hardware	amd	ryzen_threadripper_2990wx	-	No
Hardware	arm	cortex-a72	-	Yes
Hardware	broadcom	bcm2711	-	Yes
Hardware	intel	core_i7-10700k	-	Yes
Hardware	intel	core_i7-7700k	-	Yes
Hardware	intel	core_i9-9900k	-	Yes
Hardware	intel	xeon_silver_4214	-	Yes
Operating System	fedoraproject	fedora	33	Yes
Operating System	fedoraproject	fedora	34	Yes

References

http://www.openwall.com/lists/oss-security/2021/06/09/2 Mailing List, Third Party Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2021/06/10/1 Exploit, Mailing List, Third Party Advisory ([email protected])
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/H36U6CNREC436W6GYO7QUMJIVEA35SCV/ ([email protected])
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SVA2NY26MMXOODUMYZN5DCU3FXMBMBOB/ ([email protected])
https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1003 Vendor Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2021/06/09/2 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2021/06/10/1 Exploit, Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/H36U6CNREC436W6GYO7QUMJIVEA35SCV/ (af854a3a-2127-422b-91ae-364da2661108)
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SVA2NY26MMXOODUMYZN5DCU3FXMBMBOB/ (af854a3a-2127-422b-91ae-364da2661108)
https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1003 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For xen's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.