CVE-2013-2551Use-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 demonstr…
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It affects microsoft internet_explorer. Add what you run to find out whether that includes you.
CISA lists it as known exploited since Mar 28, 2022; federal agencies had to remediate by Apr 18, 2022, and it is known to be used in ransomware. Treat that date as your deadline.
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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
- 8.8 HIGH (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-416
- Known exploited
- Added to CISA KEV Mar 28, 2022; federal remediation due Apr 18, 2022; known ransomware useApply updates per vendor instructions.
- EPSS (exploitation in the next 30 days)
- 73.92% (percentile 99)
- Assigned by
- mitre
- NVD analysis
- Analyzed
- Record last updated
- Oct 22, 2025
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
microsoft internet_explorer microsoft:internet_explorer | 6; 7; 8; 9; 10 | NVD |
References
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-037vendor-advisory, x-refsource-ms, patch
- http://www.us-cert.gov/ncas/alerts/TA13-134Athird-party-advisory, x-refsource-cert, us-government-resource
- http://twitter.com/VUPEN/statuses/309479075385327617x-refsource-misc, broken-link
- http://twitter.com/thezdi/statuses/309452625173176320x-refsource-misc, not-applicable
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16317vdb-entry, signature, x-refsource-oval, broken-link
- http://h30499.www3.hp.com/t5/HP-Security-Research-Blog/Pwn2Own-2013/ba-p/5981157x-refsource-misc, broken-link, third-party-advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2013-2551us-government-resource
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.