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Vulnerability Intelligence

CVE-2013-3163

HighExploitedPublic exploit

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…

Published Jul 10, 2013 · Updated Apr 22, 2026

Key Facts

Patch immediately
  • CVE-2013-3163 is a high-severity vulnerability (CVSS 8.8 v3.1) affecting Internet Explorer (Microsoft).
  • It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Oct 28, 2014. Public exploit code is available.
  • EPSS estimates a 71% probability of exploitation in the next 30 days.
  • No fixed version is listed yet; check the vendor advisory for mitigations.
  • Brandefense priority: patch immediately, because it is listed as exploited in the wild.

CVSS v3.1

8.8

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

EPSS (30-day exploit likelihood)

71%

Higher than 99.3% of all scored CVEs

Exploited in the wild

Yes

4 catalog listings

Public exploit code

Available

Proof-of-concept or weaponized module

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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.

Known-Exploited Catalog Listings

CatalogAddedRemediation dueRansomware use
CISA KEVMar 30, 2023Apr 20, 2023Not reported
Industry KEV feedOct 28, 2014Apr 20, 2023Not reported
CIRCL KEVMar 30, 2023Apr 20, 2023Not reported
ENISA EUVDMar 30, 2023n/aNot reported

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

Affected Products

3 affected entries in total
ProductAffected versionsFixed in
Internet ExplorerMicrosoft10, 8, 9n/a

Timeline

  1. Publicly disclosed

    Jul 10, 2013

  2. Added to Industry KEV feed

    Oct 28, 2014

  3. Added to CISA KEV

    Mar 30, 2023

  4. Added to CIRCL KEV

    Mar 30, 2023

  5. Added to ENISA EUVD

    Mar 30, 2023

  6. Last updated

    Apr 22, 2026

Weakness Type

  • CWE-787 Out-of-bounds Write

References

3 more references in the full CVE brief

FAQ

Common Questions.

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