How severe is CVE-2013-3163?

CVE-2013-3163 has a CVSS 3.1 base score of 8.8 (HIGH). EPSS estimates a 70.7% probability of exploitation in the next 30 days. It is listed in the CISA Known Exploited Vulnerabilities catalog.

CVE-2013-3163: Microsoft Internet Explorer Memory Corruption

CISA Known Exploited Vulnerabilities

Microsoft Internet Explorer Memory Corruption Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.

Added to KEV

2023-03-30

Remediation due

2023-04-20

Required action
The impacted product is end-of-life and should be disconnected if still in use.

CISA notes
https://learn.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-055; https://nvd.nist.gov/vuln/detail/CVE-2013-3163

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.

Severity

CVSS 3.1 · CISA8.8 HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

SSVC · CISA-ADP

Exploitationactive

Automatableno

Technical impacttotal

Exploitation Context

as of October 14, 2026

All KEV statistics→

CISA added CVE-2013-3163 to the KEV catalog 3,550 days after its CVE record was published. The median for entries added in 2023 is 12 days.
It is one of 391 Microsoft entries in the CISA KEV catalog, and one of 27 added in 2023.
Its current EPSS score (70.7%) is higher than that of 58% of CISA KEV entries.

Affected Products

Vendor	Product	Affected versions
-	-	n/a

References

3 Links

Vendor advisories

MS13-055

Third-party advisories

TA13-190A

Vulnerability databases

oval:org.mitre.oval:def:17363

Record Details

Published

2013-07-10

Last updated

2025-10-22

Assigner (CNA)

microsoft

Credited to

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CVE record data © The MITRE Corporation, used under the CVE Terms of Use. Exploited-in-the-wild data from the CISA Known Exploited Vulnerabilities catalog (CC0). Exploit prediction scores by FIRST EPSS (first.org/epss). This site is not endorsed or certified by MITRE, NVD, CISA, or FIRST.