CVE-2013-2551

Microsoft Internet Explorer Use-After-Free

8.8 HIGHActively exploited (CISA KEV)Used in ransomwareEPSS 73.9%

Published11 Mar 2013
Added to CISA KEV28 Mar 2022
Remediation due18 Apr 2022

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.

CVSS 3.1 breakdown

Attack vectorNetwork

Attack complexityLow

Privileges requiredNone

User interactionRequired

ScopeUnchanged

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

Microsoft Internet Explorer10 · 6 · 7 · 8

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

Patch & vendor advisories

https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-037

References

http://h30499.www3.hp.com/t5/HP-Security-Research-Blog/Pwn2Own-2013/ba-p/5981157Broken LinkThird Party Advisory
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-037PatchVendor Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16317Broken Link
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2013-2551US Government Resource
http://twitter.com/thezdi/statuses/309452625173176320Not Applicable
http://twitter.com/VUPEN/statuses/309479075385327617Broken Link
http://www.us-cert.gov/ncas/alerts/TA13-134AThird Party AdvisoryUS Government Resource

Related CVEs

Recent high-severity vulnerabilities sharing a weakness type.

Frequently asked

Is CVE-2013-2551 being actively exploited?

Yes. CVE-2013-2551 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 28 Mar 2022. It has been used in ransomware campaigns.

How severe is CVE-2013-2551?

CVE-2013-2551 has a CVSS 3.1 base score of 8.8, rated high. EPSS estimates a 73.9% probability of exploitation.

Which products are affected by CVE-2013-2551?

Affected products include Microsoft Internet Explorer.

How do I fix CVE-2013-2551?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2013-2551 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, Secuno flags any affected asset as top-priority automatically. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

See how prioritisation works Book a demo

Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.