CVE-2009-1133
CVE-2009-1133 is a critical-severity vulnerability in Microsoft Windows 2000 with a CVSS 2.0 base score of 9.3. Its EPSS exploit-prediction score of 30% places it in the 98th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-119.
Key facts
- Severity: Critical (CVSS 2.0 base score 9.3)
- EPSS exploit prediction: 30% (98th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-119
- Affected product: Microsoft Windows 2000
- Published:
- Last modified:
Description
Heap-based buffer overflow in Microsoft Remote Desktop Connection (formerly Terminal Services Client) running RDP 5.0 through 6.1 on Windows, and Remote Desktop Connection Client for Mac 2.0, allows remote attackers to execute arbitrary code via unspecified parameters, aka "Remote Desktop Connection Heap Overflow Vulnerability."
Frequently asked questions
- What is CVE-2009-1133?
- Heap-based buffer overflow in Microsoft Remote Desktop Connection (formerly Terminal Services Client) running RDP 5.0 through 6.1 on Windows, and Remote Desktop Connection Client for Mac 2.0, allows remote attackers to execute arbitrary code via unspecified parameters, aka "Remote Desktop Connection Heap Overflow Vulnerability."
- How severe is CVE-2009-1133?
- CVE-2009-1133 has a CVSS 2.0 base score of 9.3, rated critical severity.
- Is CVE-2009-1133 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 30% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2009-1133?
- CVE-2009-1133 primarily affects Microsoft Windows 2000. In total, 17 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2009-1133?
- 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-2009-1133 published?
- CVE-2009-1133 was published on 2009-08-12 and last updated on 2026-06-16.
References
- http://secunia.com/advisories/36229
- http://www.securitytracker.com/id?1022709
- http://www.us-cert.gov/cas/techalerts/TA09-223A.html
- http://www.vupen.com/english/advisories/2009/2238
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-044
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5693
Affected products (17)
- cpe:2.3:o:microsoft:windows_2000:-:sp4:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server:2003:sp2:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2003:*:sp2:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2008:*:*:itanium:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2008:*:*:x64:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2008:*:sp2:itanium:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2008:-:-:x32:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2008:-:sp2:x64:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_vista:*:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_vista:*:*:x64:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_vista:*:sp1:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_vista:*:sp2:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_vista:-:sp1:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_vista:-:sp2:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_xp:*:sp2:pro_x64:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_xp:-:sp2:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_xp:-:sp3:*:*:*:*:*:*
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