Security readout for executives and security teams
Plain-English summary
This Windows flaw could let a local, already-authorized user read information they should not access through the Push Message Routing Service. It is not remotely exploitable based on the supplied CVSS vector, but confidentiality impact is rated high. Microsoft lists an official advisory and patch reference.
Executive priority
Treat as a routine but important Windows patching item. Business urgency is moderate because exploitation requires local authorized access, but successful abuse could expose sensitive information from affected systems.
Technical view
CVE-2026-24282 is a CWE-125 out-of-bounds read in Microsoft Push Message Routing Service. CVSS 3.1 is 5.5: local attack, low complexity, low privileges, no user interaction, unchanged scope, high confidentiality impact, no integrity or availability impact.
Likely exposure
Exposure is limited to listed Windows 10 and Windows 11 versions where untrusted or lower-privileged local users can execute code or interact locally. Shared workstations, jump hosts, and multi-user endpoints have higher practical concern than single-user locked-down devices.
Exploitation context
The source bundle does not show active exploitation. KEV is false, and the CVSS exploit maturity value is unproven. No public exploit details are provided in the supplied sources.
Researcher notes
The title says elevation of privilege, but the supplied description and CVSS impacts indicate local information disclosure only. No exploit mechanics, affected component internals, or workaround details are included. Avoid assuming remote reachability or integrity impact from the title alone.
Mitigation direction
- Apply Microsoft updates referenced by the MSRC advisory for affected Windows versions.
- Inventory endpoints against the listed Windows 10 and Windows 11 versions.
- Prioritize systems with shared local access or sensitive data exposure risk.
- Review MSRC for exact fixed builds and any updated vendor guidance.
- Maintain least-privilege controls for local users.
Validation and detection
- Confirm each endpoint Windows version and build against the affected list.
- Verify patch compliance using Microsoft update management or vulnerability scanning.
- Check scanners report CVE-2026-24282 as remediated after patching.
- Review local user access on systems that cannot be patched immediately.
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-125: 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 lookupPrivilege behavior lookup
The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2026-24282 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/E:U/RL:O/RC:C
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
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:N/E:U/RL:O/RC:C1.83.6microsoftVulnerability 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/E:U/RL:O/RC:C
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
- Push message Routing Service Elevation of Privilege VulnerabilityCVE reference, microsoft · vendor-advisory, patch
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.
Out-of-bounds Read
Out-of-bounds Read represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.