CVE DATABASE / CVE-2013-2551
CVE-2013-2551
Microsoft Internet Explorer Use-After-Free Vulnerability
Confirmed exploited in the wild. Added 2022-03-28.
Federal remediation due 2022-04-18.
Required action: Apply updates per vendor instructions.
Summary
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.
CVSS 3.1 breakdown
| Base score | 8.8 (HIGH) |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| Attack vector | NETWORK |
| Attack complexity | LOW |
| Privileges required | NONE |
| User interaction | REQUIRED |
| Scope | UNCHANGED |
| Confidentiality | HIGH |
| Integrity | HIGH |
| Availability | HIGH |
Weakness type (CWE)
Affected products
Use our free CVE Lookup tool for the latest NVD record, or browse the full CISA KEV catalog.
References
- http://h30499.www3.hp.com/t5/HP-Security-Research-Blog/Pwn2Own-2013/ba-p/5981157
- http://twitter.com/VUPEN/statuses/309479075385327617
- http://twitter.com/thezdi/statuses/309452625173176320
- http://www.us-cert.gov/ncas/alerts/TA13-134A
- 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://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2013-2551
Data: NIST NVD + CISA KEV. NVD last modified 2026-04-21. Always verify against the vendor advisory before acting.