CVE-2013-2551
Microsoft Internet Explorer Use-After-Free Vulnerability
This vulnerability is in the CISA Known Exploited Vulnerabilities catalog: attackers are using it. If you run Internet Explorer, fix it now.
CISA required action: Apply updates per vendor instructions.
US federal civilian agencies must remediate by Apr 18, 2022.
Patch status
Official fix available since
Apply the vendor's update to every affected system. Check the fixed-in versions below where known.
Basis: NVD patch reference
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.
Source: NIST National Vulnerability Database. Official vulnerability data, reproduced as published.
Affected products
| Product | Vendor | Affected versions | Source |
|---|---|---|---|
| Internet Explorer | Microsoft | 6; 7; 8; 9; 10 | KEV |
Sources: KEV = CISA Known Exploited Vulnerabilities catalog.
Intelligence timeline
Developments from the last 30 days, newest first.
- CVSS scoredUpdateKEV
CVE-2013-2551 scored CVSS 8.8: Microsoft Internet Explorer, Microsoft Internet Explorer Use-After-Free Vulnerability
CISA lists this as exploited in the wild and known to be used in ransomware campaigns. Unpatched Internet Explorer systems are exposed to active attacks now.
Basis: NIST National Vulnerability Database
- Patch releasedUpdateKEV
Patch released for CVE-2013-2551: Microsoft Internet Explorer, Microsoft Internet Explorer Use-After-Free Vulnerability
An official fix is now available for Microsoft Internet Explorer. This vulnerability is being exploited, so apply it promptly.
Basis: NVD patch reference
1 earlier event is available with a subscription. See plans.
Coverage
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