Security readout for executives and security teams
Plain-English summary
This is a denial-of-service issue in Microsoft Defender's Malware Protection Engine. The known impact is availability loss: Defender or its engine could be disrupted, not data theft or tampering. Public sources rate it medium severity with high availability impact, but require local access and user interaction.
Executive priority
Handle through normal endpoint security patch management, with priority for high-value workstations and servers. This is not evidenced as actively exploited, but Defender availability affects detection and response resilience.
Technical view
The CVSS 3.1 vector is AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H, score 5.5. Sources identify Microsoft Malware Protection Engine version 1.1.0.0. Remediation level is listed as official fix available, but the bundle does not include detailed vulnerable build ranges or exploit mechanics.
Likely exposure
Exposure is most likely on Windows systems using Microsoft Defender or the Microsoft Malware Protection Engine that have not received the relevant Microsoft engine/security update. The source bundle only names version 1.1.0.0, so confirm exact applicability through Microsoft guidance.
Exploitation context
The bundle does not show active exploitation, and KEV status is false. CVSS marks exploit code maturity as unproven. Attack conditions are local, low complexity, no privileges required, and user interaction required, limiting broad remote exploitation but still creating endpoint availability risk.
Researcher notes
Public detail in the provided bundle is limited. The strongest facts are vendor advisory existence, medium CVSS 5.5, high availability impact, local attack vector, required user interaction, and no KEV listing. Avoid assuming remote exploitability or data compromise.
Mitigation direction
- Apply Microsoft's official update for CVE-2022-24548.
- Ensure Microsoft Defender engine and security intelligence updates are current.
- Check Microsoft advisory for exact affected build and remediation details.
- Prioritize endpoints where Defender availability is operationally critical.
Validation and detection
- Inventory endpoints running Microsoft Defender or Malware Protection Engine.
- Verify Defender engine versions against Microsoft advisory guidance.
- Confirm update channels are successfully delivering Defender engine updates.
- Review endpoint telemetry for Defender service instability or unexpected crashes.
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.
CVE-2022-24548 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:N/UI:R/S:U/C:N/I:N/A:H/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.
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:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C1.83.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5.5MediumVector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C
Source materials
- CVE List V5 sourceCVE List V5
- Microsoft Defender Denial of Service VulnerabilityCVE reference · vendor-advisory
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.