Actively exploited · Published Mar 10, 2010 · Assigned by microsoft
CVE-2010-0806
High 8.8 Exploited
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 May 20, 2026). The chance it is exploited in the next 30 days is estimated at 82.1% (higher than 99.7% of all known vulnerabilities). Ready-made attack tooling exists: Metasploit. 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 guidance
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Federal agencies must remediate by Jun 3, 2026.
Official 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."
Affected products (as reported)
Weakness: CWE-416 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
References
- 62810 vdb-entry, x_refsource_OSVDB
- TA10-089A third-party-advisory, x_refsource_CERT
- 38615 vdb-entry, x_refsource_BID
- ADV-2010-0567 vdb-entry, x_refsource_VUPEN
- 38860 third-party-advisory, x_refsource_SECUNIA
- TA10-068A third-party-advisory, x_refsource_CERT
- MS10-018 vendor-advisory, x_refsource_MS
- http://www.microsoft.com/technet/security/advisory/981374.mspx x_refsource_CONFIRM
- ms-ie-useafterfree-code-execution(56772) vdb-entry, x_refsource_XF
- oval:org.mitre.oval:def:8446 vdb-entry, signature, x_refsource_OVAL
- ADV-2010-0744 vdb-entry, x_refsource_VUPEN
- http://blogs.technet.com/msrc/archive/2010/03/09/security-advisory-981374-released.aspx x_refsource_CONFIRM
- VU#744549 third-party-advisory, x_refsource_CERT-VN
- https://learn.microsoft.com/en-us/security-updates/securitybulletins/2010/ms10-018 vendor-advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2010-0806 government-resource