Assessment
Why it matters
CISA lists this vulnerability as known to be exploited; exploitation is confirmed; EPSS is 82.2%; technical severity is CVSS 8.8.
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."
Who should care
- Teams operating Internet Explorer
- Vulnerability and exposure management teams
- Security operations teams monitoring exploitation activity
Response plan
What I would do
- Confirm whether Internet Explorer is present in the environment.
- Identify affected versions and establish whether vulnerable services are exposed or reachable.
- Microsoft Security patch 981374.mspx
- Review relevant security telemetry for evidence of attempted or successful exploitation.
- Document the remediation decision and track it to verified completion.
Treatment intelligence
Remediation intelligence
Vendor sources are listed before government and third-party guidance. Confirm product applicability and change prerequisites before deployment.
Verification noteAutomated link verification has not completed for this guidance yet.
Patch
Advisory
Technical details
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- CWE
- CWE-399
- Affected versions
- Microsoft Internet Explorer (Version 5.01 | Version 6 | Version 8 | Version 7)
- Fixed versions
- No explicit fixed version is currently recorded.
- Published
- 10 March 2010
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
Signal timeline
- CVE published
- Added to CISA KEV
- Latest EPSS score: 82.2%
- Signal calculated at 82
External references
- CISA Government advisory CVE-2010-0806
- Blogs Technet Technical reference Security Advisory 981374 Released
- Secunia Technical reference
- Securityfocus Technical reference
- Us Cert Government advisory TA10 068A
- Us Cert Government advisory TA10 089A
- Vupen Technical reference
- Vupen Technical reference
- Exchange Xforce Ibmcloud Third-party advisory
- Oval Cisecurity Technical reference Oval%3Aorg.mitre.oval%3Adef%3A8446