HIGH
Heap-based buffer overflow in the Microsoft Terminal Services Client ActiveX control running RDP 6.1 on Windows XP SP2, Vista SP1 or SP2, or Server 2008 Gold or SP2; or 5.2 or 6.1 on Windows XP SP3; allows remote attackers to execute arbitrary code via unspecified parameters to unknown methods, aka "Remote Desktop Connection ActiveX Control Heap Overflow Vulnerability."
Published Aug 12, 2009
9.3
HIGHCVSS 2.0
EPSS 34.53%
Description
Heap-based buffer overflow in the Microsoft Terminal Services Client ActiveX control running RDP 6.1 on Windows XP SP2, Vista SP1 or SP2, or Server 2008 Gold or SP2; or 5.2 or 6.1 on Windows XP SP3; allows remote attackers to execute arbitrary code via unspecified parameters to unknown methods, aka "Remote Desktop Connection ActiveX Control Heap Overflow Vulnerability."
Affected products
No data.
OR
- sp2
- sp2
- sp2
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
9.3 HIGH NVD
AV:N/AC:M/Au:N/C:C/I:C/A:C
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact Complete
Integrity Impact Complete
Availability Impact Complete
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
34.53% 0.34534
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
EPSS probability 0.34534
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (33 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 34.53% (0.34534) | 98.38th | v5 (v2026.06.15) |
| Jun 15, 2026 | 34.53% (0.34534) | 98.20th | v5 (v2026.06.15) |
| Feb 28, 2026 | 67.44% (0.67436) | 98.53th | v4 (v2025.03.14) |
| Jan 1, 2026 | 71.03% (0.71035) | 98.66th | v4 (v2025.03.14) |
| Dec 28, 2025 | 72.73% (0.72729) | 98.72th | v4 (v2025.03.14) |
| Dec 27, 2025 | 68.23% (0.68228) | 98.55th | v4 (v2025.03.14) |
| Oct 28, 2025 | 72.73% (0.72729) | 98.71th | v4 (v2025.03.14) |
| Oct 27, 2025 | 68.23% (0.68228) | 98.53th | v4 (v2025.03.14) |
| Oct 1, 2025 | 72.73% (0.72729) | 98.73th | v4 (v2025.03.14) |
| Mar 30, 2025 | 67.88% (0.67880) | 98.47th | v4 (v2025.03.14) |
| Mar 29, 2025 | 69.87% (0.69866) | 98.18th | v4 (v2025.03.14) |
| Mar 17, 2025 | 67.88% (0.67880) | 98.47th | v4 (v2025.03.14) |
| Dec 12, 2024 | 91.11% (0.91107) | 99.01th | v3 (v2023.03.01) |
| Dec 9, 2024 | 91.11% (0.91107) | 99.00th | v3 (v2023.03.01) |
| Jul 19, 2024 | 92.48% (0.92476) | 99.02th | v3 (v2023.03.01) |
| Jun 11, 2024 | 93.52% (0.93522) | 99.10th | v3 (v2023.03.01) |
| May 2, 2024 | 93.31% (0.93311) | 99.04th | v3 (v2023.03.01) |
| Feb 10, 2024 | 93.57% (0.93567) | 99.01th | v3 (v2023.03.01) |
| Dec 30, 2023 | 93.29% (0.93291) | 98.88th | v3 (v2023.03.01) |
| Dec 8, 2023 | 93.69% (0.93688) | 98.90th | v3 (v2023.03.01) |
| Nov 15, 2023 | 94.44% (0.94440) | 99.01th | v3 (v2023.03.01) |
| Sep 30, 2023 | 94.26% (0.94263) | 98.89th | v3 (v2023.03.01) |
| Jul 1, 2023 | 95.09% (0.95095) | 98.97th | v3 (v2023.03.01) |
| Mar 7, 2023 | 94.10% (0.94097) | 98.62th | v3 (v2023.03.01) |
| Mar 6, 2023 | 46.72% (0.46718) | 98.56th | v2 (v2022.01.01) |
| Jan 13, 2023 | 46.72% (0.46718) | 98.53th | v2 (v2022.01.01) |
| Nov 12, 2022 | 49.76% (0.49756) | 98.66th | v2 (v2022.01.01) |
| Sep 10, 2022 | 55.10% (0.55095) | 98.72th | v2 (v2022.01.01) |
| Jul 18, 2022 | 57.79% (0.57789) | 98.78th | v2 (v2022.01.01) |
| Jul 17, 2022 | 8.00% (0.07996) | 93.07th | v2 (v2022.01.01) |
| Jul 7, 2022 | 57.79% (0.57789) | 98.76th | v2 (v2022.01.01) |
| May 3, 2022 | 60.01% (0.60013) | 98.80th | v2 (v2022.01.01) |
| Feb 4, 2022 | 67.16% (0.67160) | 98.89th | v2 (v2022.01.01) |
Weaknesses (1)
References (8)
- http://osvdb.org/56912 vdb-entryx_refsource_OSVDB
- http://secunia.com/advisories/36229 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://www.securityfocus.com/bid/35973 vdb-entryx_refsource_BIDPatch
- http://www.securitytracker.com/id?1022709 vdb-entryx_refsource_SECTRACK
- http://www.us-cert.gov/cas/techalerts/TA09-223A.html third-party-advisoryx_refsource_CERTUS Government Resource
- http://www.vupen.com/english/advisories/2009/2238 vdb-entryx_refsource_VUPENPatchVendor Advisory
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-044 vendor-advisoryx_refsource_MS
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6329 vdb-entrysignaturex_refsource_OVAL
| Link | Providers | Tags |
|---|---|---|
| http://osvdb.org/56912 | vdb-entryx_refsource_OSVDB | |
| http://secunia.com/advisories/36229 | third-party-advisoryx_refsource_SECUNIAVendor Advisory | |
| http://www.securityfocus.com/bid/35973 | vdb-entryx_refsource_BIDPatch | |
| http://www.securitytracker.com/id?1022709 | vdb-entryx_refsource_SECTRACK | |
| http://www.us-cert.gov/cas/techalerts/TA09-223A.html | third-party-advisoryx_refsource_CERTUS Government Resource | |
| http://www.vupen.com/english/advisories/2009/2238 | vdb-entryx_refsource_VUPENPatchVendor Advisory | |
| https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-044 | vendor-advisoryx_refsource_MS | |
| https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6329 | vdb-entrysignaturex_refsource_OVAL |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner microsoft
Published Aug 12, 2009
Updated Aug 7, 2024
Reserved Jun 4, 2009
Link CVE-2009-1929
CISA Vulnrichment
Updated n/a