Security readout for executives and security teams
Plain-English summary
CVE-2024-28956 is a medium-severity Intel processor issue where some CPUs may expose sensitive information through shared microarchitectural structures during transient execution. The attacker needs local authenticated access, so the main concern is shared systems, virtualized environments, workstations, and appliances where lower-privileged users can run code.
Executive priority
Treat as a scheduled but real confidentiality risk, not an emergency based on the supplied evidence. Prioritize environments where untrusted or lower-privileged users share Intel-based systems.
Technical view
The CVE describes CWE-1421 information exposure in some Intel processors. CVSS 4.0 is 5.7 with local attack vector, high complexity, required attack conditions, low privileges, no user interaction, and high vulnerable-system confidentiality impact. The bundle does not name specific affected CPU models or concrete fixes.
Likely exposure
Exposure is most likely where affected Intel processors are used in multi-user, shared compute, virtualization, appliance, or industrial deployments. The provided bundle says default status is unaffected and directs readers to references for affected versions.
Exploitation context
The CVE is not listed as KEV in the supplied bundle, and no cited source in the bundle states active exploitation. Any claim of exploitation would require additional evidence.
Researcher notes
Evidence is incomplete in the bundle because affected processor lists and mitigation details are referenced but not included. Validate against Intel-SA-01153 and downstream vendor advisories before declaring exposure, remediation status, or compensating controls.
Mitigation direction
- Review Intel-SA-01153 for affected processor and mitigation details.
- Check OEM, operating system, Debian, and Siemens advisories for applicable updates.
- Prioritize shared, multi-tenant, and locally accessible systems.
- Limit unnecessary local user access on sensitive systems.
- Track firmware, microcode, and OS update status through normal patch governance.
Validation and detection
- Inventory Intel processor models across servers, workstations, and appliances.
- Compare processor inventory against Intel-SA-01153 affected guidance.
- Review Debian LTS advisories for relevant package update applicability.
- Check Siemens SSA-019113 for affected Siemens product exposure.
- Confirm local authenticated access paths on potentially affected systems.
Public sources used
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
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-1421: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2024-28956 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
- 5.7 (4.0)
- Known Exploited
- No
- Published
Vector: CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA: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.
SSVC decision data
CVSS vector scores
2 official scoresWe 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:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N——intelCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N1.14intelVulnerability scoring details
Base CVSS 4.0 score
5.7MediumVector: CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Base CVSS 3.1 score
5.6MediumVector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://intel.com/content/www/us/en/security-center/advisory/intel-sa-01153.htmlCVE reference, intel
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.htmlCVE reference, CVE
- https://lists.debian.org/debian-lts-announce/2025/08/msg00010.htmlCVE reference, CVE
- https://lists.debian.org/debian-lts-announce/2025/05/msg00021.htmlCVE reference, CVE
- https://cert-portal.siemens.com/productcert/html/ssa-019113.htmlCVE reference, siemens-SADP
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.
Exposure of Sensitive Information in Shared Microarchitectural Structures during Transient Execution
Exposure of Sensitive Information in Shared Microarchitectural Structures during Transient Execution represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.