CVE-2010-0806

Microsoft Internet Explorer: Use-After-Free

As of , CVE-2010-0806 in Microsoft Internet Explorer is on CISA's list of exploited vulnerabilities: CISA listed it on . Our patch-first group: Patch this week.

Exploited
Yes: CISA listed it on 20 May 2026
US federal deadline
3 June 202614 days after CISA listed it. US federal civilian agencies must fix it by then.
Used in ransomware campaigns
Not known to CISA
EPSS score
0.82Higher than 99% of the CVEs EPSS scores. EPSS estimates the chance of exploitation activity in the next 30 days.
Public exploit
1 Metasploit module and 2 Exploit-DB entries (2 verified)
Fix
Vendor advice: learn.microsoft.comLinks below, from CISA's entry.

What CISA says to do

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

CISA's required action

What the flaw is

Microsoft Internet Explorer contains an use-after-free vulnerability that could allow remote attackers to execute arbitrary code via vectors involving access to an invalid pointer after the deletion of an object. The impacted product could be end-of-life (EoL) and/or end-of-service (EoS). Users should discontinue product utilization.

CISA's description

Use-after-free vulnerability in the Peer Objects component (aka iepeers.dll) in Microsoft Internet Explorer 6, 6 SP1, and 7 allows remote attackers to execute arbitrary code via vectors involving access to an invalid pointer after the deletion of an object, as exploited in the wild in March 2010, aka "Uninitialized Memory Corruption Vulnerability."

The CVE record's description, from microsoft

CVE published
10 March 2010
Assigned by
microsoft
CVSS
8.8 High (CVSS 3.1, from CISA-ADP)
CWE-416
Use After Free
CWE-399
Resource Management Errors
CISA SSVC, exploitation
active
CISA SSVC, automatable
no
CISA SSVC, technical impact
total

Timeline

  1. The CVE record was published.
  2. Exploit-DB published an exploit (EDB-ID 11683).
  3. Exploit-DB published an exploit (EDB-ID 16590).
  4. CISA added it to its list of exploited vulnerabilities.
  5. The US federal deadline to fix it.

Public exploits

Facts from Metasploit's module list and Exploit-DB's index; we never copy exploit code.

Internet Explorer: other exploited entries

VulnerabilityProductOur groupListedDeadlineEPSS
CVE-2010-0249Use-After-FreeMicrosoft Internet ExplorerPatch this weekMetasploit module; EPSS 0.92; verified Exploit-DB entry0.92
CVE-2010-3962Uninitialized Memory CorruptionMicrosoft Internet ExplorerPatch this weekMetasploit module; EPSS 0.97; verified Exploit-DB entry0.97
CVE-2013-3893Resource Management ErrorsMicrosoft Internet ExplorerPatch this weekMetasploit module; EPSS 0.88; verified Exploit-DB entry0.88
CVE-2012-4792Use-After-FreeMicrosoft Internet ExplorerPatch this weekMetasploit module; EPSS 0.79; verified Exploit-DB entry0.79
CVE-2013-3163Memory CorruptionMicrosoft Internet ExplorerPatch this weekMetasploit module; EPSS 0.71; verified Exploit-DB entry0.71
CVE-2012-4969Use-After-FreeMicrosoft Internet ExplorerPatch this weekMetasploit module; EPSS 0.80; verified Exploit-DB entry0.80
CVE-2014-0322Use-After-FreeMicrosoft Internet ExplorerPatch this weekMetasploit module; EPSS 0.85; verified Exploit-DB entry0.85
CVE-2013-2551Use-After-FreeMicrosoft Internet ExplorerPatch this weekRansomware use; Metasploit module; EPSS 0.74; verified Exploit-DB entry0.74
CVE-2013-1347Remote Code ExecutionMicrosoft Internet ExplorerPatch this weekMetasploit module; EPSS 0.78; verified Exploit-DB entry0.78
CVE-2013-3897Use-After-FreeMicrosoft Internet ExplorerPatch this weekMetasploit module; EPSS 0.77; verified Exploit-DB entry0.77

All 36 entries for Internet Explorer

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