SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2013-3163

Microsoft Internet Explorer Memory Corruption Vulnerability

KEVHIGH 8.8EPSS 70.7%

Does this matter?

Known to be exploited in the wild (CISA KEV, CISA remediation deadline 20 April 2023). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.

Description

Microsoft Internet Explorer 8 through 10 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka "Internet Explorer Memory Corruption Vulnerability," a different vulnerability than CVE-2013-3144 and CVE-2013-3151.

CVSS 3.1
8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS
70.68% probability · 99th percentile
CISA KEV
Listed 30 March 2023 · due 20 April 2023
Weakness
CWE-787
Affected
microsoft/internet explorer
Source
secure@microsoft.com

CISA notes

The impacted product is end-of-life and should be disconnected if still in use. https://learn.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-055; https://nvd.nist.gov/vuln/detail/CVE-2013-3163

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