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Actively exploited · Published Mar 11, 2013 · Assigned by mitre

CVE-2013-2551

High 8.8 Exploited Ransomware

In plain English

A high-severity use-after-free in Internet Explorer from Microsoft. Attackers are actively exploiting it in the wild (listed by CISA on March 28, 2022). It has been used in ransomware campaigns. The chance it is exploited in the next 30 days is estimated at 74.1% (higher than 99.5% of all known vulnerabilities). Ready-made attack tooling exists: Metasploit. Apply updates per vendor instructions.

Severity (CVSS 3.1)8.8High
Exploit odds (30 days)74.1%top 0.5% of all CVEs
Exploited in the wildYesCISA KEV since Mar 28, 2022
Attack tooling1Metasploit

CISA guidance

Apply updates per vendor instructions.

Federal agencies must remediate by Apr 18, 2022.

Official 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.

Affected products (as reported)

VendorProductVersions
n/a n/a n/a

Weakness: CWE-416 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References