Vulnerability · Published Jun 9, 2021 · Assigned by AMD
CVE-2021-26314AMD Speculative execution with Floating-Point Value Injection
Medium 5.5
In plain English
A medium-severity security flaw in All supported processors from AMD. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 49% of all known vulnerabilities).
Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.6%top 50.8% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official 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 packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu:22.04:LTS | xen | no fix listed | UBUNTU-CVE-2021-26314 |
| Ubuntu:24.04:LTS | xen | no fix listed | UBUNTU-CVE-2021-26314 |
| Ubuntu:25.10 | xen | no fix listed | UBUNTU-CVE-2021-26314 |
| Ubuntu:26.04:LTS | xen | no fix listed | UBUNTU-CVE-2021-26314 |
| Ubuntu:26.10 | xen | no fix listed | UBUNTU-CVE-2021-26314 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| AMD | All supported processors | unspecified – before undefined |
Weakness: CWE-208
References
- https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1003 x_refsource_MISC
- [oss-security] 20210609 Xen Security Advisory 375 v3 (CVE-2021-0089,CVE-2021-26313) - Speculative Code Store Bypass mailing-list, x_refsource_MLIST
- [oss-security] 20210610 Xen Security Advisory 375 v4 (CVE-2021-0089,CVE-2021-26313) - Speculative Code Store Bypass mailing-list, x_refsource_MLIST
- FEDORA-2021-41d4347447 vendor-advisory, x_refsource_FEDORA
- FEDORA-2021-993693c914 vendor-advisory, x_refsource_FEDORA