# CVE-2013-2551: Microsoft Internet Explorer Use-After-Free Vulnerability

> CVE-2013-2551: Microsoft Internet Explorer Use-After-Free Vulnerability. CVSS 8.8 (CVSS 3.1), in CISA KEV.

Canonical: https://rewindex.com/cve/CVE-2013-2551
Last updated: 2025-10-22T00:05:43Z

- Published: 2013-03-11 10:00 UTC · Updated: 2025-10-22 00:05 UTC · Assigner: mitre
- CVSS: 8.8 (CVSS 3.1) · Severity: High · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS: 73.9%, 99th percentile (scored 2026-10-25)
- CISA KEV: yes, added 2022-03-28, federal due date 2022-04-18, ransomware use: Known

## 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.

## CISA required action

Apply updates per vendor instructions.

## Affected vendors and products

- Microsoft: Internet Explorer

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2013-2551)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2013-2551)
- [http://h30499.www3.hp.com/t5/HP-Security-Research-Blog/Pwn2Own-2013/ba-p/5981157](http://h30499.www3.hp.com/t5/HP-Security-Research-Blog/Pwn2Own-2013/ba-p/5981157)
- [https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-037](https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-037)
- [https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16317](https://oval.cisecurity.org/repository/search/definition/oval%253Aorg.mitre.oval%253Adef%253A16317)
- [http://twitter.com/thezdi/statuses/309452625173176320](http://twitter.com/thezdi/statuses/309452625173176320)
- [http://twitter.com/VUPEN/statuses/309479075385327617](http://twitter.com/VUPEN/statuses/309479075385327617)
- [http://www.us-cert.gov/ncas/alerts/TA13-134A](http://www.us-cert.gov/ncas/alerts/TA13-134A)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2013-2551 · Markdown: https://rewindex.com/cve/CVE-2013-2551.md · JSON: https://rewindex.com/api/v1/cves/CVE-2013-2551 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:05:39.498Z