CVE-2010-0806
HighExploitedPublic exploitUse-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…
Published Mar 10, 2010 · Updated May 21, 2026
Key Facts
Patch immediately- CVE-2010-0806 is a high-severity vulnerability (CVSS 8.8 v3.1) affecting Internet Explorer (Microsoft).
- It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Mar 10, 2010. Public exploit code is available.
- EPSS estimates a 82% probability of exploitation in the next 30 days.
- No fixed version is listed yet; check the vendor advisory for mitigations.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
8.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
82%
Higher than 99.6% of all scored CVEs
Exploited in the wild
Yes
4 catalog listings
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2010-0806 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
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."
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| CISA KEV | May 20, 2026 | Jun 3, 2026 | Not reported |
| Industry KEV feed | Mar 10, 2010 | Jun 3, 2026 | Not reported |
| CIRCL KEV | Mar 10, 2010 | Jun 3, 2026 | Not reported |
| ENISA EUVD | May 20, 2026 | n/a | Not reported |
Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Affected Products
5 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Internet ExplorerMicrosoft | 5.01, 6, 6-sp1, 7, 8 | n/a |
Timeline
Publicly disclosed
Mar 10, 2010
Added to Industry KEV feed
Mar 10, 2010
Added to CIRCL KEV
Mar 10, 2010
Added to CISA KEV
May 20, 2026
Added to ENISA EUVD
May 20, 2026
Last updated
May 21, 2026
Weakness Type
- CWE-399
- CWE-416 Use After Free
References
- advisoryMS10-018
- advisory38860
- advisoryms-ie-useafterfree-code-execution(56772)
- advisoryhttps://learn.microsoft.com/en-us/security-updates/securitybulletins/2010/ms10-018
- advisoryADV-2010-0567
FAQ
Common Questions.
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 Me…
Affected: Internet Explorer (Microsoft) versions 5.01, 6, 6-sp1, 7, 8. The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Mar 10, 2010.
Yes. It was added on May 20, 2026 with a federal remediation due date of Jun 3, 2026.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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