CVE-2002-0022

CVE-2002-0022 is a high-severity vulnerability in Microsoft Internet Explorer with a CVSS 2.0 base score of 7.5. Its EPSS exploit-prediction score of 40% places it in the 98th percentile, indicating an elevated likelihood of exploitation.

Key facts

Description

Buffer overflow in the implementation of an HTML directive in mshtml.dll in Internet Explorer 5.5 and 6.0 allows remote attackers to execute arbitrary code via a web page that specifies embedded ActiveX controls in a way that causes 2 Unicode strings to be concatenated.

Frequently asked questions

What is CVE-2002-0022?
Buffer overflow in the implementation of an HTML directive in mshtml.dll in Internet Explorer 5.5 and 6.0 allows remote attackers to execute arbitrary code via a web page that specifies embedded ActiveX controls in a way that causes 2 Unicode strings to be concatenated.
How severe is CVE-2002-0022?
CVE-2002-0022 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2002-0022 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 40% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2002-0022?
CVE-2002-0022 primarily affects Microsoft Internet Explorer. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2002-0022?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2002-0022 published?
CVE-2002-0022 was published on 2002-03-08 and last updated on 2026-06-16.

References

Affected products (2)

More vulnerabilities in Microsoft Internet Explorer

All CVEs affecting Microsoft Internet Explorer →