Actively exploited · Published Feb 26, 2017 · Assigned by microsoft

CVE-2017-0037

High 8.1 Exploited

In plain English

A high-severity type confusion in Internet Browser from Microsoft Corporation. Attackers are actively exploiting it in the wild (listed by CISA on March 28, 2022). The chance it is exploited in the next 30 days is estimated at 80.4% (higher than 99.6% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code. Apply updates per vendor instructions.

Severity (CVSS 3.1)8.1High
Exploit odds (30 days)80.4%top 0.4% of all CVEs
Exploited in the wildYesCISA KEV since Mar 28, 2022
Attack tooling1Public PoC

CISA guidance

Apply updates per vendor instructions.

Federal agencies must remediate by Apr 18, 2022.

Official description

Microsoft Internet Explorer 10 and 11 and Microsoft Edge have a type confusion issue in the Layout::MultiColumnBoxBuilder::HandleColumnBreakOnColumnSpanningElement function in mshtml.dll, which allows remote attackers to execute arbitrary code via vectors involving a crafted Cascading Style Sheets (CSS) token sequence and crafted JavaScript code that operates on a TH element.

Affected products (as reported)

VendorProductVersions
Microsoft Corporation Internet Browser Internet Explorer 10 and 11 and Edge

Weakness: CWE-843 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

References