CVE-2007-2221
CVE-2007-2221 is a critical-severity vulnerability in Microsoft Internet Explorer with a CVSS 2.0 base score of 9.3. Its EPSS exploit-prediction score of 37% places it in the 98th percentile, indicating an elevated likelihood of exploitation.
Key facts
- Severity: Critical (CVSS 2.0 base score 9.3)
- EPSS exploit prediction: 37% (98th percentile)
- Actively exploited: Not listed in CISA KEV
- Affected product: Microsoft Internet Explorer
- Published:
- Last modified:
Description
Unspecified vulnerability in the mdsauth.dll COM object in Microsoft Windows Media Server in the Microsoft Internet Explorer 5.01 SP4 on Windows 2000 SP4; 6 SP1 on Windows 2000 SP4; 6 and 7 on Windows XP SP2, or Windows Server 2003 SP1 or SP2; or 7 on Windows Vista allows remote attackers to overwrite arbitrary files via unspecified vectors, aka the "Arbitrary File Rewrite Vulnerability."
Frequently asked questions
- What is CVE-2007-2221?
- Unspecified vulnerability in the mdsauth.dll COM object in Microsoft Windows Media Server in the Microsoft Internet Explorer 5.01 SP4 on Windows 2000 SP4; 6 SP1 on Windows 2000 SP4; 6 and 7 on Windows XP SP2, or Windows Server 2003 SP1 or SP2; or 7 on Windows Vista allows remote attackers to overwrite arbitrary files via unspecified vectors, aka the "Arbitrary File Rewrite Vulnerability."
- How severe is CVE-2007-2221?
- CVE-2007-2221 has a CVSS 2.0 base score of 9.3, rated critical severity.
- Is CVE-2007-2221 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 37% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2007-2221?
- CVE-2007-2221 primarily affects Microsoft Internet Explorer. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2007-2221?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- When was CVE-2007-2221 published?
- CVE-2007-2221 was published on 2007-05-08 and last updated on 2026-06-16.
References
- http://secunia.com/advisories/23769
- http://www.fortiguardcenter.com/advisory/FGA-2007-07.html
- http://www.kb.cert.org/vuls/id/500753
- http://www.osvdb.org/34404
- http://www.securityfocus.com/archive/1/468871/100/200/threaded
- http://www.securityfocus.com/bid/23827
- http://www.securitytracker.com/id?1018019
- http://www.us-cert.gov/cas/techalerts/TA07-128A.html
- http://www.vupen.com/english/advisories/2007/1712
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2007/ms07-027
- https://exchange.xforce.ibmcloud.com/vulnerabilities/33355
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1885
Affected products (4)
- cpe:2.3:a:microsoft:internet_explorer:5.01:sp4:*:*:*:*:*:*
- cpe:2.3:a:microsoft:internet_explorer:6:sp1:*:*:*:*:*:*
- cpe:2.3:a:microsoft:internet_explorer:6.0:*:*:*:*:*:*:*
- cpe:2.3:a:microsoft:internet_explorer:7.0:*:*:*:*:*:*:*
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