Known Exploited Vulnerability
9.8
CRITICAL
CVE-2024-43491
Microsoft Windows Update Remote Code Execution Vul - [Actively Exploited]
Description

Microsoft is aware of a vulnerability in Servicing Stack that has rolled back the fixes for some vulnerabilities affecting Optional Components on Windows 10, version 1507 (initial version released July 2015). This means that an attacker could exploit these previously mitigated vulnerabilities on Windows 10, version 1507 (Windows 10 Enterprise 2015 LTSB and Windows 10 IoT Enterprise 2015 LTSB) systems that have installed the Windows security update released on March 12, 2024—KB5035858 (OS Build 10240.20526) or other updates released until August 2024. All later versions of Windows 10 are not impacted by this vulnerability. This servicing stack vulnerability is addressed by installing the September 2024 Servicing stack update (SSU KB5043936) AND the September 2024 Windows security update (KB5043083), in that order. Note: Windows 10, version 1507 reached the end of support (EOS) on May 9, 2017 for devices running the Pro, Home, Enterprise, Education, and Enterprise IoT editions. Only Windows 10 Enterprise 2015 LTSB and Windows 10 IoT Enterprise 2015 LTSB editions are still under support.

INFO

Published Date :

Sept. 10, 2024, 5:15 p.m.

Last Modified :

Sept. 26, 2024, 1 a.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

3.9
CISA Notification
CISA KEV (Known Exploited Vulnerabilities)

For the benefit of the cybersecurity community and network defenders—and to help every organization better manage vulnerabilities and keep pace with threat activity—CISA maintains the authoritative source of vulnerabilities that have been exploited in the wild.

Description :

Microsoft Windows Update contains an unspecified vulnerability that allows for remote code execution.

Required Action :

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Notes :

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-43491; https://nvd.nist.gov/vuln/detail/CVE-2024-43491

Public PoC/Exploit Available at Github

CVE-2024-43491 has a 1 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2024-43491 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Microsoft windows_10_1507
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2024-43491.

URL Resource
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-43491 Patch Vendor Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

None

Updated: 3 weeks ago
0 stars 0 fork 0 watcher
Born at : Sept. 16, 2024, 6:07 p.m. This repo has been linked 3 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2024-43491 vulnerability anywhere in the article.

  • Cybersecurity News
Okta Patches Vulnerability Allowing Unauthorized Access

Identity and access management giant, Okta, recently addressed a vulnerability that could have allowed malicious actors with valid credentials to bypass critical security measures. The vulnerability, ... Read more

Published Date: Oct 05, 2024 (2 days, 22 hours ago)
  • Help Net Security
October 2024 Patch Tuesday forecast: Recall can be recalled

October arrived, and Microsoft started the month by announcing the release of Windows 11 24H2. The preview versions of this release have been in the news due to many innovations and one controversial ... Read more

Published Date: Oct 04, 2024 (3 days, 19 hours ago)
  • tripwire.com
Tripwire Patch Priority Index for September 2024

Tripwire's September 2024 Patch Priority Index (PPI) brings together important vulnerabilities for Microsoft.First on the list are patches for Microsoft Excel, Visio, and Publisher that resolve remote ... Read more

Published Date: Oct 02, 2024 (5 days, 15 hours ago)
  • Cybersecurity News
CVE-2024-8353 (CVSS 10): Critical GiveWP Flaw, 100k WordPress Sites at Risk

A critical vulnerability has been discovered in the popular GiveWP donation plugin for WordPress, potentially allowing unauthenticated attackers to take complete control of affected websites. The flaw ... Read more

Published Date: Sep 30, 2024 (1 week ago)
  • Cybersecurity News
CVE-2023-48788 Exploited: Researcher Details Cyberattacks on Fortinet EMS

Medusa ransomware ransom note | Image: Unit 42In a concerning new development, cybersecurity researchers at Darktrace have unveiled a report detailing the exploitation of Fortinet’s FortiClient Endpoi ... Read more

Published Date: Sep 20, 2024 (2 weeks, 3 days ago)
  • Cybersecurity News
Cyberattack on Delta Prime: Losses Soar to $6M

The Delta Prime platform fell victim to a cyberattack resulting in the theft of cryptocurrency worth approximately $6 million. Initially, losses were reported at around $4.5 million, but the damage la ... Read more

Published Date: Sep 18, 2024 (2 weeks, 5 days ago)
  • Help Net Security
Microsoft confirms second 0-day exploited by Void Banshee APT (CVE-2024-43461)

CVE-2024-43461, a spoofing vulnerability affecting Windows MSHTML – a software component used by various apps for rendering render web pages on Windows – “was exploited as a part of an attack chain re ... Read more

Published Date: Sep 16, 2024 (3 weeks ago)
  • Cybersecurity News
New Zero-Day Emerges After Microsoft Patch Tuesday: CVE-2024-43461 Targets Windows MSHTML

IE and a promote window dialog appear when the victim double-clicks on the .url file | Image: Check PointIn an unexpected turn of events, Microsoft has revised its September 2024 Patch Tuesday securit ... Read more

Published Date: Sep 16, 2024 (3 weeks ago)
  • Help Net Security
Week in review: Veeam Backup & Replication RCE could soon be exploited, Microsoft fixes 4 0-days

Here’s an overview of some of last week’s most interesting news, articles, interviews and videos: Veeam Backup & Replication RCE flaw may soon be leveraged by ransomware gangs (CVE-2024-40711) CVE-202 ... Read more

Published Date: Sep 15, 2024 (3 weeks, 1 day ago)
  • Cybersecurity News
CVE-2024-43491 (CVSS 9.8): Critical Windows 0-Day Flaw Uncovered, Urgent Patching Required

Microsoft has disclosed a critical zero-day vulnerability in its Windows operating system, identified as CVE-2024-43491. The vulnerability, with a severity score of 9.8 (out of 10), resides within the ... Read more

Published Date: Sep 11, 2024 (3 weeks, 5 days ago)
  • The Cyber Express
Microsoft September 2024 Patch Tuesday: Addressing 79 New Vulnerabilities and Product Updates

The second Tuesday of September has once again proven to be a significant date for cybersecurity with Microsoft’s latest Patch Tuesday update. This month’s release is dominated by a daunting array of ... Read more

Published Date: Sep 11, 2024 (3 weeks, 5 days ago)
  • security.nl
Microsoft dicht actief aangevallen kwetsbaarheden in Windows en Publisher

Tijdens de patchdinsdag van september heeft Microsoft vier actief aangevallen kwetsbaarheden verholpen. De beveiligingslekken werden al misbruikt voordat de patches beschikbaar waren. Het gaat om drie ... Read more

Published Date: Sep 11, 2024 (3 weeks, 5 days ago)
  • The Hacker News
Microsoft Issues Patches for 79 Flaws, Including 3 Actively Exploited Windows Flaws

Windows Security / Vulnerability Microsoft on Tuesday disclosed that three new security flaws impacting the Windows platform have come under active exploitation as part of its Patch Tuesday update for ... Read more

Published Date: Sep 11, 2024 (3 weeks, 5 days ago)
  • TheCyberThrone
CISA KEV Catalog Update Part III-September 2024

The US CISA has added below vulnerabilities to the Known exploited vulnerabilities catalog based on the evidence of active exploitation. These vulnerabilities are part of this month microsoft patch tu ... Read more

Published Date: Sep 11, 2024 (3 weeks, 5 days ago)
  • TheCyberThrone
Microsoft Patch Tuesday – September 2024

Microsoft patched 79 CVEs in its September 2024 Patch Tuesday release, with seven rated critical, 71 rated as important, and one rated as moderate. This includes patches for 4 Zeroday vulnerabilities. ... Read more

Published Date: Sep 11, 2024 (3 weeks, 5 days ago)
  • crowdstrike.com
September 2024 Patch Tuesday: Four Zero-Days and Seven Critical Vulnerabilities Amid 79 CVEs

Microsoft has released security updates for 79 vulnerabilities in its September 2024 Patch Tuesday rollout. These include four actively exploited zero-days (CVE-2024-38014, CVE-2024-38217, CVE-2024-38 ... Read more

Published Date: Sep 10, 2024 (3 weeks, 6 days ago)
  • krebsonsecurity.com
Bug Left Some Windows PCs Dangerously Unpatched

Microsoft Corp. today released updates to fix at least 79 security vulnerabilities in its Windows operating systems and related software, including multiple flaws that are already showing up in active ... Read more

Published Date: Sep 10, 2024 (3 weeks, 6 days ago)
  • tripwire.com
VERT Threat Alert: September 2024 Patch Tuesday Analysis

Today’s VERT Alert addresses Microsoft’s September 2024 Security Updates. VERT is actively working on coverage for these vulnerabilities and expects to ship ASPL-1123 as soon as coverage is completed. ... Read more

Published Date: Sep 10, 2024 (3 weeks, 6 days ago)
  • Help Net Security
Microsoft fixes 4 exploited zero-days and a code defect that nixed earlier security fixes

September 2024 Patch Tuesday is here and Microsoft has delivered 79 fixes, including those for a handful of zero-days (CVE-2024-38217, CVE-2024-38226, CVE-2024-38014, CVE-2024-43461) exploited by atta ... Read more

Published Date: Sep 10, 2024 (3 weeks, 6 days ago)
  • BleepingComputer
Microsoft September 2024 Patch Tuesday fixes 4 zero-days, 79 flaws

Today is Microsoft's September 2024 Patch Tuesday, which includes security updates for 79 flaws, including four actively exploited and one publicly disclosed zero-days. This Patch Tuesday fixed seven ... Read more

Published Date: Sep 10, 2024 (3 weeks, 6 days ago)

The following table lists the changes that have been made to the CVE-2024-43491 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE CISA KEV Update by 9119a7d8-5eab-497f-8521-727c672e3725

    Sep. 26, 2024

    Action Type Old Value New Value
    Removed Due Date 2024-10-01
    Removed Vulnerability Name Microsoft Windows Update Use-After-Free Vulnerability
    Removed Date Added 2024-09-10
    Removed Required Action Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
  • CVE CISA KEV Update by 9119a7d8-5eab-497f-8521-727c672e3725

    Sep. 12, 2024

    Action Type Old Value New Value
    Changed Vulnerability Name Microsoft Windows Update Remote Code Execution Vulnerability Microsoft Windows Update Use-After-Free Vulnerability
  • Initial Analysis by [email protected]

    Sep. 11, 2024

    Action Type Old Value New Value
    Changed Reference Type https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-43491 No Types Assigned https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-43491 Patch, Vendor Advisory
    Added CWE NIST NVD-CWE-noinfo
    Added CPE Configuration OR *cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:x64:* versions up to (excluding) 10.0.10240.20766 *cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:x86:* versions up to (including) 10.0.10240.20766
  • CVE CISA KEV Update by 9119a7d8-5eab-497f-8521-727c672e3725

    Sep. 11, 2024

    Action Type Old Value New Value
    Added Date Added 2024-09-10
    Added Required Action Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
    Added Vulnerability Name Microsoft Windows Update Remote Code Execution Vulnerability
    Added Due Date 2024-10-01
  • CVE Received by [email protected]

    Sep. 10, 2024

    Action Type Old Value New Value
    Added Description Microsoft is aware of a vulnerability in Servicing Stack that has rolled back the fixes for some vulnerabilities affecting Optional Components on Windows 10, version 1507 (initial version released July 2015). This means that an attacker could exploit these previously mitigated vulnerabilities on Windows 10, version 1507 (Windows 10 Enterprise 2015 LTSB and Windows 10 IoT Enterprise 2015 LTSB) systems that have installed the Windows security update released on March 12, 2024—KB5035858 (OS Build 10240.20526) or other updates released until August 2024. All later versions of Windows 10 are not impacted by this vulnerability. This servicing stack vulnerability is addressed by installing the September 2024 Servicing stack update (SSU KB5043936) AND the September 2024 Windows security update (KB5043083), in that order. Note: Windows 10, version 1507 reached the end of support (EOS) on May 9, 2017 for devices running the Pro, Home, Enterprise, Education, and Enterprise IoT editions. Only Windows 10 Enterprise 2015 LTSB and Windows 10 IoT Enterprise 2015 LTSB editions are still under support.
    Added Reference Microsoft Corporation https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-43491 [No types assigned]
    Added CWE Microsoft Corporation CWE-416
    Added CVSS V3.1 Microsoft Corporation AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2024-43491 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2024-43491 weaknesses.

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability