NVD / CVE Program· CNA microsoft

CVE-2024-49039: Windows Task Scheduler Elevation of Privilege Vulnerability

Noroxi assessment

Priority: This week (action score 69/100)

CISA has confirmed exploitation in the wild (Nov 12, 2024); it is known to be used in ransomware campaigns. Remediation deadline for US federal agencies: Dec 3, 2024.
Probability of exploitation in the next 30 days: 14.1% (FIRST EPSS); higher than 96.5% of all records.
Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
Fixed version: Windows 10 for 32-bit Systems 10.0.10240.20826; Windows 10 for x64-based Systems 10.0.10240.20826; Windows 10 Version 1607 for 32-bit Systems 10.0.14393.7515.

Don’t wait for the next maintenance window. Upgrade to Windows 10 for 32-bit Systems 10.0.10240.20826; Windows 10 for x64-based Systems 10.0.10240.20826; Windows 10 Version 1607 for 32-bit Systems 10.0.14393.7515 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · CISA KEV · FIRST EPSS

HighCVSS 8.8 · v3.1KEVWeaponized Fix available

BDU:2024-09376

Published: Nov 12, 2024
Updated: Aug 4, 2026
EPSS: 14.1% · 96th percentile
CWE: CWE-287

Report tools

JSON

Action score

This week

Don’t wait for the next maintenance window.

CVSS: 35 / 40 · 8.8 / 10
CISA KEV: 30 / 30 · Listed
EPSS: 4 / 30 · 14.1%

CISA SSVC decision

Exploitation: active
Automatable: no
Technical impact: total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD: —
CNA · microsoft: 8.8; NVD has not scored this yet; the score shown is the CNA’s.

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

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Actively exploited in the wild

CISA added this to its Known Exploited Vulnerabilities catalog on Nov 12, 2024. That signals real attacks, not theory.

Remediation deadline for US federal agencies: Dec 3, 2024.

Known to be used in ransomware campaigns.

Get told when this record changes

In CISA KEV: exploitation in the wild confirmed
Weaponized exploit exists
A fix has been released

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

Vendor	Product	CPE
microsoft	windows 10 1507	cpe:2.3:o:microsoft:windows_10_1507
microsoft	windows 10 1607	cpe:2.3:o:microsoft:windows_10_1607
microsoft	windows 10 1809	cpe:2.3:o:microsoft:windows_10_1809
microsoft	windows 10 21h2	cpe:2.3:o:microsoft:windows_10_21h2
microsoft	windows 10 22h2	cpe:2.3:o:microsoft:windows_10_22h2
microsoft	windows 11 22h2	cpe:2.3:o:microsoft:windows_11_22h2
microsoft	windows 11 23h2	cpe:2.3:o:microsoft:windows_11_23h2
microsoft	windows 11 24h2	cpe:2.3:o:microsoft:windows_11_24h2
microsoft	windows server 2016	cpe:2.3:o:microsoft:windows_server_2016
microsoft	windows server 2019	cpe:2.3:o:microsoft:windows_server_2019
microsoft	windows server 2022	cpe:2.3:o:microsoft:windows_server_2022
microsoft	windows server 2022 23h2	cpe:2.3:o:microsoft:windows_server_2022_23h2

and 1 more

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

microsoft windows server 2016before 10.0.14393.7515
microsoft windows server 2019before 10.0.17763.6532
microsoft windows server 2022before 10.0.20348.2849
microsoft windows server 2022 23h2before 10.0.25398.1251
microsoft windows server 2025before 10.0.26100.2314

Versions reported by the vendor

Affected version ranges reported by the assigning authority (microsoft). Independent of NVD's CPE analysis and usually ahead of it.

Microsoft Windows 10 Version 1507
- 10.0.10240.0 and later · before 10.0.10240.20826affected
Microsoft Windows 10 Version 1607
- 10.0.14393.0 and later · before 10.0.14393.7515affected
Microsoft Windows 10 Version 1809
- 10.0.17763.0 and later · before 10.0.17763.6532affected
Microsoft Windows 10 Version 21H2
- 10.0.19043.0 and later · before 10.0.19044.5131affected
Microsoft Windows 10 Version 22H2
- 10.0.19045.0 and later · before 10.0.19045.5131affected
Microsoft Windows 11 version 22H2
- 10.0.22621.0 and later · before 10.0.22621.4460affected
Microsoft Windows 11 version 22H3
- 10.0.22631.0 and later · before 10.0.22631.4460affected
Microsoft Windows 11 Version 23H2
- 10.0.22631.0 and later · before 10.0.22631.4460affected
Microsoft Windows 11 Version 24H2
- 10.0.26100.0 and later · before 10.0.26100.2314affected
Microsoft Windows Server 2016
- 10.0.14393.0 and later · before 10.0.14393.7515affected
Microsoft Windows Server 2016 (Server Core installation)
- 10.0.14393.0 and later · before 10.0.14393.7515affected
Microsoft Windows Server 2019
- 10.0.17763.0 and later · before 10.0.17763.6532affected

Same product

microsoft: all records

Other highest-scoring records for the same primary product.

CVE-2021-34527Windows Print Spooler Remote Code Execution VulnerabilityKEV
95Now
CVE-2021-40444Microsoft MSHTML Remote Code Execution VulnerabilityKEV
94Now
CVE-2025-33053Internet Shortcut Files Remote Code Execution VulnerabilityKEV
91Now

Published before and after this one in the same product

← EarlierCVE-2024-43644Nov 12, 2024 · Windows Client-Side Caching Elevation of Privilege Vulnerability
31Monitor
← EarlierCVE-2024-43645Nov 12, 2024 · Windows Defender Application Control (WDAC) Security Feature Bypass Vulnerability
31Monitor
Later →CVE-2024-49046Nov 12, 2024 · Windows Win32 Kernel Subsystem Elevation of Privilege Vulnerability
31Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / package	Fixed version	Source
Windows 10 for 32-bit Systems	10.0.10240.20826 · KB5046665	Microsoft (MSRC)
Windows 10 for x64-based Systems	10.0.10240.20826 · KB5046665	Microsoft (MSRC)
Windows 10 Version 1607 for 32-bit Systems	10.0.14393.7515 · KB5046612	Microsoft (MSRC)
Windows 10 Version 1607 for x64-based Systems	10.0.14393.7515 · KB5046612	Microsoft (MSRC)
Windows 10 Version 1809 for 32-bit Systems	10.0.17763.6532 · KB5046615	Microsoft (MSRC)
Windows 10 Version 1809 for x64-based Systems	10.0.17763.6532 · KB5046615	Microsoft (MSRC)
Windows 10 Version 21H2 for 32-bit Systems	10.0.19044.5131 · KB5046613	Microsoft (MSRC)
Windows 10 Version 21H2 for ARM64-based Systems	10.0.19044.5131 · KB5046613	Microsoft (MSRC)
Windows 10 Version 21H2 for x64-based Systems	10.0.19044.5131 · KB5046613	Microsoft (MSRC)
Windows 10 Version 22H2 for 32-bit Systems	10.0.19045.5131 · KB5046613	Microsoft (MSRC)
Windows 10 Version 22H2 for ARM64-based Systems	10.0.19045.5131 · KB5046613	Microsoft (MSRC)
Windows 10 Version 22H2 for x64-based Systems	10.0.19045.5131 · KB5046613	Microsoft (MSRC)
Windows 11 Version 22H2 for ARM64-based Systems	10.0.22621.4460 · KB5046633	Microsoft (MSRC)
Windows 11 Version 22H2 for x64-based Systems	10.0.22621.4460 · KB5046633	Microsoft (MSRC)
Windows 11 Version 23H2 for ARM64-based Systems	10.0.22631.4460 · KB5046633	Microsoft (MSRC)
Windows 11 Version 23H2 for x64-based Systems	10.0.22631.4460 · KB5046633	Microsoft (MSRC)
Windows 11 Version 24H2 for ARM64-based Systems	10.0.26100.2240 · KB5046696	Microsoft (MSRC)
Windows 11 Version 24H2 for ARM64-based Systems	10.0.26100.2314 · KB5046617	Microsoft (MSRC)
Windows 11 Version 24H2 for x64-based Systems	10.0.26100.2240 · KB5046696	Microsoft (MSRC)
Windows 11 Version 24H2 for x64-based Systems	10.0.26100.2314 · KB5046617	Microsoft (MSRC)
Windows Server 2016	10.0.14393.7515 · KB5046612	Microsoft (MSRC)
Windows Server 2016 (Server Core installation)	10.0.14393.7515 · KB5046612	Microsoft (MSRC)
Windows Server 2019	10.0.17763.6532 · KB5046615	Microsoft (MSRC)
Windows Server 2019 (Server Core installation)	10.0.17763.6532 · KB5046615	Microsoft (MSRC)
Windows Server 2022	10.0.20348.2819 · KB5046698	Microsoft (MSRC)
Windows Server 2022	10.0.20348.2849 · KB5046616	Microsoft (MSRC)
Windows Server 2022 (Server Core installation)	10.0.20348.2819 · KB5046698	Microsoft (MSRC)
Windows Server 2022 (Server Core installation)	10.0.20348.2849 · KB5046616	Microsoft (MSRC)
Windows Server 2022, 23H2 Edition (Server Core installation)	10.0.25398.1251 · KB5046618	Microsoft (MSRC)
Windows Server 2025	10.0.26100.2240 · KB5046696	Microsoft (MSRC)

Exploit status

Weaponized

A ready exploit tool or active in-the-wild use is known for this vulnerability. This should be your top priority.

Evidence

Proof-of-concept repository on GitHub ×2

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
Source	Kind	Date
Proof-of-concept repository on GitHub	stars:149	2024-11-19
Proof-of-concept repository on GitHub	stars:0	2026-07-23

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

CISA KEVNov 12, 2024-1 d
PublishedNov 12, 2024
First PoCNov 19, 2024+6 d
TodayOct 29, 2026+716 d

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

CVE-2025-53778273 days apartWindows NTLM Elevation of Privilege Vulnerability
50Plan
CVE-2025-55234301 days apartWindows SMB Elevation of Privilege Vulnerability
45Plan
CVE-2025-54918301 days apartWindows NTLM Elevation of Privilege Vulnerability
43Plan
CVE-2023-36004336 days apartWindows DPAPI (Data Protection Application Programming Interface) Spoofing Vulnerability
30Monitor
CVE-2025-2134991 days apartWindows Remote Desktop Configuration Service Tampering Vulnerability
27Monitor
CVE-2023-36724399 days apartWindows Power Management Service Information Disclosure Vulnerability
22Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

CVE-2024-4908029 days apartWindows IP Routing Management Snapin Remote Code Execution Vulnerability
36Monitor
CVE-2025-2136991 days apartMicrosoft Digest Authentication Remote Code Execution Vulnerability
36Monitor
CVE-2024-3811691 days apartWindows IP Routing Management Snapin Remote Code Execution Vulnerability
36Monitor
CVE-2024-4908929 days apartWindows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability
29Monitor

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

Someone with local access to the system can trigger it.
A low-privileged account is enough.
No user action is required.
No special conditions are required; it is repeatable.

If successful

Confidentiality: high · data can be read
Integrity: high · data or configuration can be modified
Availability: high · the service can be disrupted

Impact can extend beyond the vulnerable component (scope changes).

Attack vector: Local
Attack complexity: Low
Privileges required: Low
User interaction: None
Scope: Changed
Confidentiality impact: High
Integrity impact: High
Availability impact: High

Weakness class (CWE)

CWE-287 · Improper Authentication

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

nvd-secondary

Root cause

Authentication is added route by route instead of being enforced in one place. When a route added later bypasses the shared middleware, the session check never runs for it.

The bug in code

The whole CWE-287 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

1app.use("/admin", requireSession, adminRouter);
2

3// Route added later skips the middleware
4app.post("/admin-api/config", updateConfig);

Fixed

1const admin = express.Router();
2admin.use(requireSession, requireRole("admin"));
3

4admin.post("/config", updateConfig);
5app.use("/admin", admin);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Attack patterns (CAPEC)

ATT&CK techniques

Change log

Fix✗ → ✓Oct 25, 2026, 3:39 AM UTC

For records you follow, these changes also arrive as notifications. →

References

msrc.microsoft.com/update-guide/vulnerability/CVE-2024-49039

Show all references (1 more)

www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-49039

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records