The License Logging Server (llssrv.exe) in Microsoft Windows 2000 SP4 allows remote attackers to execute arbitrary code via an RPC message containing a string without a null terminator, which triggers a heap-based buffer overflow in the LlsrLicenseRequestW method, aka "License Logging Server Heap Overflow Vulnerability."
Published Nov 11, 2009
10.0
HIGHCVSS 2.0
EPSS 26.46%
Description
The License Logging Server (llssrv.exe) in Microsoft Windows 2000 SP4 allows remote attackers to execute arbitrary code via an RPC message containing a string without a null terminator, which triggers a heap-based buffer overflow in the LlsrLicenseRequestW method, aka "License Logging Server Heap Overflow Vulnerability."
Affected products
No data.
- 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.
AV:N/AC:L/Au:N/C:C/I:C/A:C
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
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 (32 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 26.46% (0.26456) | 97.95th | v5 (v2026.06.15) |
| Jun 15, 2026 | 26.46% (0.26456) | 97.74th | v5 (v2026.06.15) |
| May 30, 2026 | 11.14% (0.11140) | 93.60th | v4 (v2025.03.14) |
| May 8, 2026 | 13.52% (0.13521) | 94.26th | v4 (v2025.03.14) |
| Jul 30, 2025 | 10.54% (0.10543) | 92.94th | v4 (v2025.03.14) |
| Apr 15, 2025 | 22.07% (0.22065) | 95.38th | v4 (v2025.03.14) |
| Mar 30, 2025 | 23.81% (0.23814) | 95.55th | v4 (v2025.03.14) |
| Mar 29, 2025 | 37.82% (0.37820) | 95.76th | v4 (v2025.03.14) |
| Mar 19, 2025 | 23.81% (0.23814) | 95.34th | v4 (v2025.03.14) |
| Mar 17, 2025 | 26.10% (0.26100) | 95.84th | v4 (v2025.03.14) |
| Mar 10, 2025 | 22.12% (0.22116) | 96.59th | v3 (v2023.03.01) |
| Dec 31, 2024 | 16.91% (0.16905) | 96.04th | v3 (v2023.03.01) |
| Nov 24, 2024 | 21.74% (0.21742) | 96.63th | v3 (v2023.03.01) |
| Oct 18, 2024 | 25.26% (0.25265) | 96.79th | v3 (v2023.03.01) |
| May 11, 2024 | 28.12% (0.28121) | 96.81th | v3 (v2023.03.01) |
| Mar 30, 2024 | 42.69% (0.42686) | 97.25th | v3 (v2023.03.01) |
| Feb 9, 2024 | 64.98% (0.64982) | 97.77th | v3 (v2023.03.01) |
| Dec 30, 2023 | 87.80% (0.87796) | 98.39th | v3 (v2023.03.01) |
| Nov 14, 2023 | 89.89% (0.89889) | 98.47th | v3 (v2023.03.01) |
| Aug 17, 2023 | 90.48% (0.90485) | 98.40th | v3 (v2023.03.01) |
| Jul 5, 2023 | 92.68% (0.92679) | 98.57th | v3 (v2023.03.01) |
| May 23, 2023 | 93.18% (0.93178) | 98.57th | v3 (v2023.03.01) |
| Apr 9, 2023 | 93.96% (0.93956) | 98.64th | v3 (v2023.03.01) |
| Mar 7, 2023 | 93.64% (0.93642) | 98.53th | v3 (v2023.03.01) |
| Mar 6, 2023 | 26.00% (0.26003) | 97.06th | v2 (v2022.01.01) |
| Feb 11, 2023 | 26.00% (0.26003) | 97.01th | v2 (v2022.01.01) |
| Dec 10, 2022 | 30.33% (0.30332) | 97.44th | v2 (v2022.01.01) |
| Oct 6, 2022 | 32.70% (0.32697) | 97.55th | v2 (v2022.01.01) |
| Jul 18, 2022 | 36.85% (0.36846) | 97.80th | v2 (v2022.01.01) |
| Jul 17, 2022 | 6.52% (0.06523) | 90.96th | v2 (v2022.01.01) |
| Mar 20, 2022 | 36.85% (0.36846) | 97.08th | v2 (v2022.01.01) |
| Feb 4, 2022 | 38.71% (0.38714) | 97.29th | v2 (v2022.01.01) |
References (3)
- http://www.us-cert.gov/cas/techalerts/TA09-314A.html third-party-advisoryx_refsource_CERTThird Party AdvisoryUS Government Resource
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-064 vendor-advisoryx_refsource_MSMitigationPatchVendor Advisory
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6300 vdb-entrysignaturex_refsource_OVALBroken Link
| Link | Providers | Tags |
|---|---|---|
| http://www.us-cert.gov/cas/techalerts/TA09-314A.html | third-party-advisoryx_refsource_CERTThird Party AdvisoryUS Government Resource | |
| https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-064 | vendor-advisoryx_refsource_MSMitigationPatchVendor Advisory | |
| https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6300 | vdb-entrysignaturex_refsource_OVALBroken Link |
Change history (0)
No recorded changes yet.