Integer underflow in the NTLM authentication feature in the Local Security Authority Subsystem Service (LSASS) in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista Gold, SP1, and SP2, Windows Server 2008 Gold, SP2, and R2, and Windows 7 allows remote attackers to cause a denial of service (reboot) via a malformed packet, aka "Local Security Authority Subsystem Service Integer Overflow Vulnerability."
Published Oct 14, 2009
7.8
HIGHCVSS 2.0
EPSS 28.47%
Description
Integer underflow in the NTLM authentication feature in the Local Security Authority Subsystem Service (LSASS) in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista Gold, SP1, and SP2, Windows Server 2008 Gold, SP2, and R2, and Windows 7 allows remote attackers to cause a denial of service (reboot) via a malformed packet, aka "Local Security Authority Subsystem Service Integer Overflow Vulnerability."
Affected products
No data.
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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:N/I:N/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 3, 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 (25 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 28.47% (0.28470) | 98.08th | v5 (v2026.06.15) |
| Jun 15, 2026 | 28.26% (0.28261) | 97.86th | v5 (v2026.06.15) |
| Jul 2, 2025 | 46.38% (0.46383) | 97.53th | v4 (v2025.03.14) |
| Mar 17, 2025 | 64.75% (0.64747) | 98.31th | v4 (v2025.03.14) |
| Jan 7, 2025 | 63.79% (0.63794) | 98.02th | v3 (v2023.03.01) |
| Sep 20, 2024 | 70.14% (0.70140) | 98.07th | v3 (v2023.03.01) |
| Aug 13, 2024 | 80.12% (0.80122) | 98.36th | v3 (v2023.03.01) |
| Jul 4, 2024 | 83.80% (0.83805) | 98.50th | v3 (v2023.03.01) |
| May 24, 2024 | 86.41% (0.86414) | 98.58th | v3 (v2023.03.01) |
| Apr 13, 2024 | 88.80% (0.88804) | 98.67th | v3 (v2023.03.01) |
| Mar 2, 2024 | 92.14% (0.92141) | 98.88th | v3 (v2023.03.01) |
| Dec 2, 2023 | 94.17% (0.94175) | 98.97th | v3 (v2023.03.01) |
| Sep 2, 2023 | 95.42% (0.95423) | 99.11th | v3 (v2023.03.01) |
| Jun 7, 2023 | 96.20% (0.96199) | 99.25th | v3 (v2023.03.01) |
| Apr 25, 2023 | 95.97% (0.95968) | 99.13th | v3 (v2023.03.01) |
| Mar 12, 2023 | 96.35% (0.96353) | 99.21th | v3 (v2023.03.01) |
| Mar 7, 2023 | 96.47% (0.96472) | 99.25th | v3 (v2023.03.01) |
| Mar 6, 2023 | 11.68% (0.11676) | 95.15th | v2 (v2022.01.01) |
| Jan 14, 2023 | 11.68% (0.11676) | 94.95th | v2 (v2022.01.01) |
| Sep 8, 2022 | 14.07% (0.14073) | 95.61th | v2 (v2022.01.01) |
| Jul 18, 2022 | 16.43% (0.16435) | 95.92th | v2 (v2022.01.01) |
| Jul 17, 2022 | 1.14% (0.01136) | 57.55th | v2 (v2022.01.01) |
| Apr 1, 2022 | 16.43% (0.16435) | 95.79th | v2 (v2022.01.01) |
| Feb 20, 2022 | 16.43% (0.16435) | 92.93th | v2 (v2022.01.01) |
| Feb 4, 2022 | 19.38% (0.19377) | 93.76th | v2 (v2022.01.01) |
References (3)
- http://www.us-cert.gov/cas/techalerts/TA09-286A.html third-party-advisoryx_refsource_CERTUS Government Resource
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-059 vendor-advisoryx_refsource_MS
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6263 vdb-entrysignaturex_refsource_OVAL
| Link | Providers | Tags |
|---|---|---|
| http://www.us-cert.gov/cas/techalerts/TA09-286A.html | third-party-advisoryx_refsource_CERTUS Government Resource | |
| https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-059 | vendor-advisoryx_refsource_MS | |
| https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6263 | vdb-entrysignaturex_refsource_OVAL |
Change history (0)
No recorded changes yet.