CVE-2010-0806 - PatchNow

📋 Vulnerability Details

Data Source: CIRCL

Confidence: HIGH

Exploitation Method: USER_INTERACTION

CVE Published: 2010-03-10

Added to CISA KEV: 2026-05-20 5915 DAYS BETWEEN CVE AND KEV

🎯 Recommendations:

CRITICAL: Check for indicators of compromise - this vulnerability is in CISA KEV indicating active exploitation in the wild. Review logs, check for unauthorized access, verify system integrity
Apply Microsoft Security Bulletin MS10-018 patch immediately on all IE 6-7 installations
Implement web filtering to block known malicious sites exploiting this vulnerability
Monitor for suspicious IE process behavior and unexpected network connections
Consider upgrading to newer IE versions or alternative browsers
PATCH PRIORITY: CRITICAL for any remaining IE 6-7 installations

🔍 Web Intelligence (Kagi · 2026-06-04)

CVE-2010-0806 is a critical use-after-free vulnerability in the `iepeers.dll` component of Microsoft Internet Explorer, which gained significant notoriety in March 2010 due to its active exploitation in the wild ^[1] ^[4].

Exploitation and Attack Method

Method: The vulnerability is a use-after-free error that occurs when the browser attempts to access an invalid pointer after an object has been deleted ^[1]. Attackers typically used specially crafted JavaScript to trigger this memory corruption, often employing "heap spraying" techniques to increase the reliability of the exploit ^[3].
Requirements: This is a remote code execution (RCE) vulnerability. It requires a user to visit a malicious website or view a compromised webpage containing the exploit code ^[1]?Name=Exploit%3AJS%2FCVE-2010-0806?kagi_q=CVE-2010-0806+details+exploitation+threat+actors.
Impact: Successful exploitation allows a remote attacker to execute arbitrary code on the victim's system with the privileges of the logged-in user ^[1].

Threat Actor Usage and Campaigns

Active Exploitation: The vulnerability was actively exploited in the wild shortly after its discovery in March 2010 ^[1].
Usage: It was notably utilized by malware families such as `Trojan:Win32/Wisp`?Name=Exploit%3AJS%2FCVE-2010-0806?kagi_q=CVE-2010-0806+details+exploitation+threat+actors. Early reports indicated that the exploit was used in targeted campaigns, including those originating from Chinese hacking groups specifically targeting Chinese users ^[2].
Ransomware: While the vulnerability was used in various malware delivery chains, it is primarily associated with the era of targeted browser-based attacks rather than modern, large-scale ransomware campaigns.

Affected Products and Mitigation

Affected Versions: The vulnerability primarily affected Internet Explorer 6 and 7 ^[1].
Patch Status: Microsoft addressed this vulnerability in Microsoft Security Bulletin MS10-018, released in March 2010?query=Exploit&page=14?kagi_q=CVE-2010-0806+details+exploitation+threat+actors.
Availability: Because this is a legacy vulnerability, proof-of-concept code and exploit modules (such as those found in penetration testing frameworks) have been widely available for many years. Organizations are advised to ensure all legacy systems are fully patched or, preferably, decommissioned, as these vulnerabilities remain a risk in unpatched environments.

Sources

CVE-2010-0806 Detail - NVD
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 ... Description Use-after-free vulnerability in the Peer Objects component (aka iepeers.dll) in Microsoft Internet Explorer 6, 6 SP1, and 7 a…
Spike Of "iepeers.dll" Exploits | Zscaler
We have seen a spike in exploits using the CVE-2010-0806 "iepeers.dll" vulnerability since this past weekend. The vulnerability affects Internet Explorer 6 and 7.From the information I could gather, the exploit page has been written by Chinese hackers to target Chinese users. Part of the intermediat…
Memory Corruption Vulnerabilities Target IE 6 & 7 | Blog
Obfuscated Exploits Continue To Target CVE-2010-0806 And CVE-2010-3962. image. THREATLABZ.De-obfuscation of the above code, shows how the exploitation of the two vulnerabilities is carried out. Lets go through each one of them sequentially. Both exploits work in following way. Initiate a heap spray.
CVE-2010-0806 Exploit In The Wild - Zscaler, Inc.
CVE-2010-0806, a use-after-free vulnerability in the Peer Objects component, was announced in mid-March 2010. The vulnerability impacts ... CVE-2010-0806, a use-after-free vulnerability in the Peer Objects component, was announced in mid-March 2010. The vulnerability impacts Internet Explorer 6, 6.I…