Use-after-free vulnerability in the Peer Objects component (aka iepeers.dll) in Microsoft Internet Explorer 6, 6 SP1, and 7 allows remote at
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Listed in CISA KEV
- How many real-world setups can hit the bug, from the vendor's advisory and CISA data. It does not know your setup.What do these mean? →
- Actively exploited
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
The Peer Objects component (iepeers.dll) in Microsoft Internet Explorer is affected. A remote attacker could exploit a memory handling flaw to run arbitrary code on a vulnerable system.
Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.
Read the original 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."
Timeline
- CVE published
- Added to CISA KEV
CISA has evidence of exploitation in the wild
- Record last updated
- CISA remediation deadline
Due date for US federal agencies to patch
- EPSS reached 10%
FIRST estimates at least a 10% chance of exploitation in the next 30 days
Affected versions
- n/a n/a
Version range not reported
References 13
osvdb.org
securityfocus.com
secunia.com
docs.microsoft.com
microsoft.com
exchange.xforce.ibmcloud.com
oval.cisecurity.org
blogs.technet.com
kb.cert.org
Questions about CVE-2010-0806
What does this mean?
The Peer Objects component (iepeers.dll) in Internet Explorer has a use-after-free bug, meaning it can use memory after that memory has been freed. The advisory says this could allow remote code execution if a user views a specially crafted Web page using Internet Explorer.Source: learn.microsoft.com
Am I affected, and how do I check?
The advisory names Internet Explorer 6, Internet Explorer 6 SP1, and Internet Explorer 7. It states that Windows 7, Windows Server 2008 R2, and Internet Explorer 8 are not affected. To check a browser's version, open Help and then About Internet Explorer.Source: learn.microsoft.com
What should I do about it?
The checked facts do not list a fixed version. Internet Explorer 8 is listed as not affected, so the advisory's not-affected list is the only version guidance available here.Source: learn.microsoft.com
Is it being exploited?
Yes. CISA added it to its Known Exploited Vulnerabilities catalog on 2026-05-20, which means it has evidence of attacks. No public exploit code is tracked.Source: cisa.gov, cve.now feed data
What if there's no patch?
The checked facts do not record a workaround or a limiting setting for this issue. Check the vendor's advisory for current mitigation guidance.Source: learn.microsoft.com