Security readout for executives and security teams
Plain-English summary
CVE-2024-49039 is a Windows Task Scheduler privilege-escalation flaw. An attacker who already has low-level local access could gain much higher control on affected Windows systems. CISA lists it as known exploited, so this should be treated as an urgent patching item for exposed Windows fleets.
Executive priority
Treat as urgent. CISA’s known-exploited status means this is not theoretical. Patch affected Windows systems promptly, especially servers, administrator workstations, and systems where local compromise would enable broader intrusion.
Technical view
Microsoft describes this as a Windows Task Scheduler Elevation of Privilege vulnerability, mapped to CWE-287. CVSS 3.1 is 8.8: local attack vector, low complexity, low privileges required, no user interaction, scope changed, and high confidentiality, integrity, and availability impact. Microsoft indicates an official fix is available.
Likely exposure
Exposure is likely on unpatched affected Windows client and server versions listed by Microsoft, including Windows 10, Windows 11, Windows Server 2016, 2019, 2022, and 2025 variants. The issue requires local low-privilege access, so risk is highest where attackers may already have a foothold.
Exploitation context
Active exploitation is supported by CISA KEV listing. The provided sources do not include exploit mechanics, campaigns, indicators, or affected attack chains. Because exploitation requires local access, this is most concerning as a post-compromise privilege-escalation path.
Researcher notes
The source bundle confirms affected products, CVSS vector, CWE-287, official remediation availability, and KEV status. It does not provide root-cause detail, proof-of-concept status, IOCs, or exploitation procedures. Avoid assuming broader affected products beyond Microsoft’s list.
Mitigation direction
- Apply Microsoft security updates for CVE-2024-49039 from the MSRC advisory.
- Prioritize internet-facing, high-value, and shared-user Windows systems for remediation.
- Restrict unnecessary local user access until patching is complete.
- Monitor Microsoft and CISA guidance for updated remediation details.
Validation and detection
- Inventory Windows systems matching Microsoft’s affected product list.
- Confirm installed updates or fixed build status using Microsoft’s advisory guidance.
- Rescan with vulnerability management tooling for CVE-2024-49039.
- Review endpoint alerts for suspicious local privilege-escalation activity.
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-287: Credential and account abuse lookup
Authentication and credential weaknesses can make valid-account abuse and credential telemetry useful review starting points. 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-2024-49039 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
- High
- CVSS
- 8.8 (3.1)
- Known Exploited
- Yes
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:F/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.
CISA KEV status
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:C/C:H/I:H/A:H/E:F/RL:O/RC:C26microsoftVulnerability scoring details
Base CVSS 3.1 score
8.8HighVector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:F/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.
- Added to KEVCISA-ADP
CISA Known Exploited Vulnerabilities metadata lists this CVE as known exploited.
- ADP timelineCISA-ADP
CVE-2024-49039 added to CISA KEV
- 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
- 2024-11-12T00:00:00.000Z: CVE-2024-49039 added to CISA KEV
Source materials
- CVE List V5 sourceCVE List V5
- Windows Task Scheduler Elevation of Privilege VulnerabilityCVE reference, microsoft · vendor-advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-49039CVE reference, CISA-ADP · government-resource
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.
Improper Authentication
Improper Authentication represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.