SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2011-1998

Microsoft Internet Explorer 9 does not properly handle objects in memory, which allows remote attackers to execute arbitrary code by accessing an object that was not properly initialized, aka "Jscript9.dll Remote Code Execution Vulnerability."

HIGH 9.3EPSS 21.2%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 21.2%, higher than 97% of all known CVEs. Patch or mitigate before the next change window.

Description

Microsoft Internet Explorer 9 does not properly handle objects in memory, which allows remote attackers to execute arbitrary code by accessing an object that was not properly initialized, aka "Jscript9.dll Remote Code Execution Vulnerability."

CVSS 2.0
9.3 HIGHAV:N/AC:M/Au:N/C:C/I:C/A:C
EPSS
21.23% probability · 97th percentile
CISA KEV
Not listed
Weakness
CWE-908
Affected
microsoft/internet explorer
Source
secure@microsoft.com

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.