CVE-2013-2551

Name: CVE-2013-2551
Creator: NVD / NIST
Published: 2013-03-11T10:55:01.07+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10Actively ExploitedEPSS 73.92%

Last modified Jun 16, 2026

CVE-2013-2551 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. Use-after-free vulnerability in Microsoft Internet Explorer 6 through 10 allows remote attackers to execute arbitrary code via a crafted web site that triggers access to a deleted object, as demonstrated by VUPEN during a Pwn2Own competition at CanSecWest 2013, aka "Internet Explorer Use After Free Vulnerability," a different vulnerability than CVE-2013-1308 and CVE-2013-1309.. CISA has confirmed active exploitation in the wild. EPSS estimates a 73.92% chance of exploitation in the next 30 days.

Description

Use-after-free vulnerability in Microsoft Internet Explorer 6 through 10 allows remote attackers to execute arbitrary code via a crafted web site that triggers access to a deleted object, as demonstrated by VUPEN during a Pwn2Own competition at CanSecWest 2013, aka "Internet Explorer Use After Free Vulnerability," a different vulnerability than CVE-2013-1308 and CVE-2013-1309.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

73.92%

99.4th percentile

Probability of exploitation in the next 30 days. Learn more

Exploitation Status

This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by Apr 18, 2022.

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Microsoft	Internet Explorer	6
Microsoft	Internet Explorer	7
Microsoft	Internet Explorer	8
Microsoft	Internet Explorer	9
Microsoft	Internet Explorer	10

References

http://h30499.www3.hp.com/t5/HP-Security-Research-Blog/Pwn2Own-2013/ba-p/5981157Broken Link, Third Party Advisory
http://twitter.com/VUPEN/statuses/309479075385327617Broken Link
http://twitter.com/thezdi/statuses/309452625173176320Not Applicable
http://www.us-cert.gov/ncas/alerts/TA13-134AThird Party Advisory, US Government Resource
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-037Patch, Vendor Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16317Broken Link
http://h30499.www3.hp.com/t5/HP-Security-Research-Blog/Pwn2Own-2013/ba-p/5981157Broken Link, Third Party Advisory
http://twitter.com/VUPEN/statuses/309479075385327617Broken Link
http://twitter.com/thezdi/statuses/309452625173176320Not Applicable
http://www.us-cert.gov/ncas/alerts/TA13-134AThird Party Advisory, US Government Resource
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-037Patch, Vendor Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16317Broken Link
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2013-2551US Government Resource

Timeline

Published: Mar 11, 2013
Last Modified: Jun 16, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2013-2551?

How severe is CVE-2013-2551?

CVE-2013-2551 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 73.92% probability of exploitation in the next 30 days. This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog.

How do I fix CVE-2013-2551?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2013-2551?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST