CVE-2021-43890
Vulnerability from cvelistv5
Published
2021-12-15 14:15
Modified
2024-08-04 04:10
Severity ?
EPSS score ?
Summary
Windows AppX Installer Spoofing Vulnerability
References
| ▼ | URL | Tags | |
|---|---|---|---|
| secure@microsoft.com | https://github.com/ChrisTitusTech/winutil/pull/26 | Issue Tracking | |
| secure@microsoft.com | https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-43890 | Patch, Vendor Advisory | |
| secure@microsoft.com | https://thehackernews.com/2023/12/microsoft-disables-msix-app-installer.html | Press/Media Coverage, Third Party Advisory | |
| secure@microsoft.com | https://www.bleepingcomputer.com/news/microsoft/microsoft-disables-msix-protocol-handler-abused-in-malware-attacks/ | Press/Media Coverage, Third Party Advisory | |
| secure@microsoft.com | https://www.microsoft.com/en-us/security/blog/2023/12/28/financially-motivated-threat-actors-misusing-app-installer/ | Exploit, Vendor Advisory |
Impacted products
| ▼ | Vendor | Product |
|---|---|---|
| Microsoft | App Installer |
CISA Known exploited vulnerability
Data from the Known Exploited Vulnerabilities Catalog
Date added: 2021-12-15
Due date: 2021-12-29
Required action: Apply updates per vendor instructions.
Used in ransomware: Unknown
Notes: https://nvd.nist.gov/vuln/detail/CVE-2021-43890
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}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.