Security readout for executives and security teams
CVE-2022-21123 is an Intel processor information-disclosure issue. A logged-in local user may be able to read stale data left in shared CPU buffers. It is not described as remotely exploitable, but it matters on shared systems, workstations, servers, and virtualization platforms where untrusted users or workloads run on the same hardware. Exposure is most likely where affected Intel processors host local users, containers, VMs, or appliances with multi-tenant workloads. The bundle does not list exact processor models; affected versions must be confirmed through Intel-SA-00615 and downstream vendor advisories. Treat as a moderate confidentiality risk. It is not presented as internet-routable, but shared infrastructure should be reviewed because local low-privileged access may expose sensitive data across CPU buffer boundaries. Mitigation focus: Review Intel-SA-00615 for affected processor and mitigation guidance.; Apply applicable OS, firmware, microcode, kernel, or hypervisor updates from your vendors.; For Xen environments, review XSA-404 guidance for relevant host exposure..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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ATT&CK lookup starting points
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CWE-459: Exact CWE lookup
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Open ATT&CK lookupCVE-2022-21123 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 5.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N1.83.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5.5MediumVector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00615.htmlCVE reference · x_refsource_MISC
- FEDORA-2022-391e24517dCVE reference · vendor-advisory, x_refsource_FEDORA
- FEDORA-2022-177a008b98CVE reference · vendor-advisory, x_refsource_FEDORA
- https://security.netapp.com/advisory/ntap-20220624-0008/CVE reference · x_refsource_CONFIRM
- FEDORA-2022-925fc688c1CVE reference · vendor-advisory, x_refsource_FEDORA
- [debian-lts-announce] 20220701 [SECURITY] [DLA 3065-1] linux security updateCVE reference · mailing-list, x_refsource_MLIST
- DSA-5173CVE reference · vendor-advisory, x_refsource_DEBIAN
- DSA-5178CVE reference · vendor-advisory, x_refsource_DEBIAN
- DSA-5184CVE reference · vendor-advisory, x_refsource_DEBIAN
- FEDORA-2022-2c9f8224f8CVE reference · vendor-advisory, x_refsource_FEDORA
- GLSA-202208-23CVE reference · vendor-advisory, x_refsource_GENTOO
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Incomplete Cleanup
Incomplete Cleanup represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.