PatchTheCVECVE-2024-43573: Microsoft Windows MSHTML Platform Spoofing Vulnerability
77
Patch now
MEDIUM 6.5EXPLOITEDWATCHLISTUPGRADEUPGRADEUPGRADE
CVE-2024-43573 is a medium-severity flaw (CVSS 6.5) affecting windows 10 1507, windows 10 1607, windows 10 1809, reported as exploited in the wild. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Windows MSHTML Platform Spoofing Vulnerability
Why this priority
- EPSS top 1%: very likely to be exploited
- Exploited in the wild (CISA KEV)
- On your watchlist
A fixed release or distro patch exists.
Risk facts
| CVSS score | 6.5 (Medium) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | Required |
| EPSS exploit chance | 46.1% (top 1%) |
| CISA exploited list | Yes, fix due 2024-10-29 |
| Weakness | CWE-79 |
| Published | 2024-10-08 |
| Last modified | 2026-06-17 |
Publisher (CNA): Microsoft Corporation · Vendor: microsoft
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Exploited Added to the CISA Known Exploited Vulnerabilities list
- Published CVE record published
- Deadline CISA due date for US federal agencies to patch
- Updated Record last modified
microsoft windows 10 1507 UPGRADE
Affected: < 10.0.10240.20796
Fixed in: 10.0.10240.20796
Safe to downgrade to: no unaffected older release
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
microsoft windows 10 1607 UPGRADE
Affected: < 10.0.14393.7428
Fixed in: 10.0.14393.7428
Safe to downgrade to: no unaffected older release
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
microsoft windows 10 1809 UPGRADE
Affected: < 10.0.17763.6414
Fixed in: 10.0.17763.6414
Safe to downgrade to: no unaffected older release
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
microsoft windows 10 21h2 UPGRADE
Affected: < 10.0.19044.5011
Fixed in: 10.0.19044.5011
Safe to downgrade to: no unaffected older release
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
microsoft windows 10 22h2 UPGRADE
Affected: < 10.0.19045.5011
Fixed in: 10.0.19045.5011
Safe to downgrade to: no unaffected older release
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
microsoft windows 11 21h2 UPGRADE
Affected: < 10.0.22000.3260
Fixed in: 10.0.22000.3260
Safe to downgrade to: no unaffected older release
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
Exact fixes by distribution
Fedora ELN · gram_grep · FIXED · 0.10.4-1.eln159 · FEDORA-2026-0808475f2a · source
sudo dnf upgrade --advisory=FEDORA-2026-0808475f2a
Fedora 46 · wesnoth · FIXED · 1.19.29-1.fc46 · FEDORA-2026-58f458e24e · source
sudo dnf upgrade --advisory=FEDORA-2026-58f458e24e
Verify at the official source NVD · CVE Program · CISA KEV catalog · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2024-43573?
windows 10 1507: upgrade to 10.0.10240.20796; windows 10 1607: upgrade to 10.0.14393.7428; windows 10 1809: upgrade to 10.0.17763.6414. Exact commands for each OS are on this page.
Is CVE-2024-43573 being exploited?
Yes. CVE-2024-43573 is on the CISA Known Exploited Vulnerabilities list, so treat it as patch-now.
What does CVE-2024-43573 affect?
CVE-2024-43573 affects windows 10 1507, windows 10 1607, windows 10 1809. Severity is medium (CVSS 6.5). Windows MSHTML Platform Spoofing Vulnerability
How urgent is CVE-2024-43573?
Priority 77/100. EPSS top 1%: very likely to be exploited; Exploited in the wild (CISA KEV); On your watchlist
Software pages
Related CVEs
- CVE-2025-54116 HIGH 7.3 UPGRADE UPGRADE Improper access control in Windows MultiPoint Services allows an authorized attacker to elevate privileges loc
- CVE-2025-26633 HIGH 7.0 EXPLOITED UPGRADE UPGRADE Microsoft Windows Management Console (MMC) Improper Neutralization Vulnerability
- CVE-2025-24993 HIGH 7.8 EXPLOITED UPGRADE UPGRADE Microsoft Windows NTFS Heap-Based Buffer Overflow Vulnerability
- CVE-2025-21391 HIGH 7.1 EXPLOITED UPGRADE UPGRADE Microsoft Windows Storage Link Following Vulnerability
- CVE-2024-43487 MEDIUM 6.5 UPGRADE UPGRADE Windows Mark of the Web Security Feature Bypass Vulnerability