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ExploitedIn CISA KEVFix available

CVE-2010-0806

Exploitation confirmed. First attested on 2010-03-10 by CISA-ADP, CISA KEV, GCVE · kevintel.

  • Published2010-03-10
  • WeaknessCWE-399 · CWE-416

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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

dates in UTC
  1. 2010-03-1022:00Listed as exploited by GCVEGCVE
  2. 2010-03-1022:00Exploitation first reportedGCVE
  3. 2010-03-1022:30CVE publishedNVD
  4. 2026-05-20Added to the CISA KEV catalogCISA KEV
  5. 2026-05-2017:14SSVC exploitation set to activeCISA-ADP
  6. 2026-10-2319:23EPSS crossed 10 %FIRST EPSS

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2010-0806?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2010-0806?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Microsoft internet explorerversion to verify
BranchAffectedFixed in
5.1= 5.01no fix published
6.x= 6no fix published
8.x= 8no fix published
7.x= 7no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

  1. CISA’s 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.due 2026-06-03

Advisories and patches

Detection

read 2026-10-23 19:23 UTC
Nuclei template
none so far
ProjectDiscovery
Exploit-DB
EDB-11683EDB-16590
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub

CISA Known Exploited Vulnerability

Date Added
2026-05-20
Patch Due Date
2026-06-03
Ransomware Use
Unknown
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.

Sources

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published
2010-03-10
Last Modified
2026-06-16
NVD status
Analyzed

Frequently asked questions

What is CVE-2010-0806?

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."

Is CVE-2010-0806 actively exploited?

Yes. CVE-2010-0806 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2026-06-03.

What is the CVSS score for CVE-2010-0806?

CVE-2010-0806 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

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