CVE-2024-43573 Microsoft Windows: web page flaw
In plain words: A web app can be made to act on someone's behalf or reach places it should not. Stolen sessions, actions taken as the victim, or access to internal systems.
Confirmed exploited by CISA on · US federal patch deadline Oct 29, 2024
What to do
- Install Microsoft's security update for Windows. If no update exists, follow the vendor's workaround or stop using the product until one ships.
- Let the browser auto-update and relaunch it when it asks — the fix is not active until you do.
- Keep extensions to a minimum and remove ones you do not recognise.
- Stop using Internet Explorer and any browser that no longer gets updates.
Who is affected
Could reach you. This one is aimed at devices or apps of the kind people own.
What's at risk: A malicious or hacked website can be enough. Browser bugs are often the first step in a longer attack on the whole computer or phone.
The details
- Official name
- Microsoft Windows MSHTML Platform Spoofing Vulnerability
- Product
- Microsoft Windows
- CISA description
- Microsoft Windows MSHTML Platform contains an unspecified spoofing vulnerability which can lead to a loss of confidentiality.
- Type of flaw
- Web page flaw (CWE-79)
- Confirmed exploited
- Oct 8, 2024
- US federal patch deadline
- Oct 29, 2024
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Answering about CVE-2024-43573 ·
Questions about CVE-2024-43573
Is CVE-2024-43573 being exploited?
Yes. CISA added CVE-2024-43573 to its Known Exploited Vulnerabilities catalog on Oct 8, 2024, which means there is reliable evidence of real-world attacks.
How do I fix CVE-2024-43573?
Install Microsoft's security update for Windows. If no update exists, follow the vendor's workaround or stop using the product until one ships. Let the browser auto-update and relaunch it when it asks — the fix is not active until you do.
Am I affected by CVE-2024-43573?
Only if you use Microsoft Windows. This one is aimed at devices or apps of the kind people own.