CVE-2020-1012: WinINet API Elevation of Privilege Vulnerability
Vulnerability summary
CVE-2020-1012 is a high (CVSS 8.8) vulnerability in microsoft internet_explorer. EPSS estimates a 3.74% chance of exploitation in the next 30 days, higher than 89.8% of scored vulnerabilities.
Timeline
- 11-09-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
<p>An elevation of privilege vulnerability exists in the way that the Wininit.dll handles objects in memory. An attacker who successfully exploited the vulnerability could execute code with elevated permissions.</p> <p>There are multiple ways an attacker could exploit the vulnerability:</p> <ul> <li><p>In a web-based attack scenario, an attacker could host a specially crafted website that is designed to exploit this vulnerability and then convince a user to view the website. An attacker would have no way to force users to view the attacker-controlled content. Instead, an attacker would have to convince users to take action, typically by getting them to click a link in an email message or in an Instant Messenger message that takes users to the attacker's website, or by opening an attachment sent through email.</p> </li> <li><p>In a file sharing attack scenario, an attacker could provide a specially crafted document file that is designed to exploit this vulnerability, and then convince a user to open the document file.</p> </li> </ul> <p>The security update addresses the vulnerability by ensuring the Wininit.dll properly handles objects in memory.</p>
CVSS metrics
3 scores · 2 sources · 2 versions- NVDNIST8.8HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS trend
Probability
3.74%
Chance of exploitation in the next 30 days
Percentile
90%
Versus all other CVEs
30-day change
No change 0.00 pp
From 3.74% on 22-09-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Microsoft2 products
- internet_explorerEOL11
- internet explorer 11≥ 1.0.0, < publication
1 vendor · 2 products
References
1 links- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1012X Refsource MISCPatchVendor Advisory