The Secure Channel (aka SChannel) security package in Microsoft Windows Vista SP1 and SP2, Windows Server 2008 Gold, SP2, and R2, and Windows 7, when IIS 7.x is used, does not properly process client certificates during SSL and TLS handshakes, which allows remote attackers to cause a denial of service (LSASS outage and reboot) via a crafted packet, aka "TLSv1 Denial of Service Vulnerability."
Published Oct 13, 2010
7.1
HIGHCVSS 2.0
EPSS 50.23%
Description
The Secure Channel (aka SChannel) security package in Microsoft Windows Vista SP1 and SP2, Windows Server 2008 Gold, SP2, and R2, and Windows 7, when IIS 7.x is used, does not properly process client certificates during SSL and TLS handshakes, which allows remote attackers to cause a denial of service (LSASS outage and reboot) via a crafted packet, aka "TLSv1 Denial of Service Vulnerability."
Affected products
No data.
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- r2
- r2
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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:M/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 1, 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 (21 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 50.23% (0.50231) | 98.88th | v5 (v2026.06.15) |
| Jun 15, 2026 | 50.89% (0.50886) | 98.78th | v5 (v2026.06.15) |
| Mar 17, 2025 | 64.70% (0.64700) | 98.31th | v4 (v2025.03.14) |
| Dec 17, 2024 | 86.77% (0.86766) | 98.85th | v3 (v2023.03.01) |
| Nov 30, 2024 | 78.83% (0.78833) | 98.37th | v3 (v2023.03.01) |
| Oct 15, 2024 | 81.39% (0.81392) | 98.43th | v3 (v2023.03.01) |
| Aug 31, 2024 | 84.82% (0.84823) | 98.58th | v3 (v2023.03.01) |
| Jul 18, 2024 | 91.38% (0.91375) | 98.92th | v3 (v2023.03.01) |
| Jun 5, 2024 | 92.14% (0.92142) | 98.92th | v3 (v2023.03.01) |
| Apr 23, 2024 | 91.16% (0.91161) | 98.83th | v3 (v2023.03.01) |
| Mar 10, 2024 | 91.51% (0.91505) | 98.81th | v3 (v2023.03.01) |
| Oct 30, 2023 | 92.14% (0.92142) | 98.64th | v3 (v2023.03.01) |
| Sep 11, 2023 | 89.33% (0.89327) | 98.33th | v3 (v2023.03.01) |
| Jul 23, 2023 | 87.08% (0.87080) | 98.15th | v3 (v2023.03.01) |
| Jun 3, 2023 | 84.66% (0.84657) | 97.98th | v3 (v2023.03.01) |
| Apr 13, 2023 | 83.05% (0.83054) | 97.86th | v3 (v2023.03.01) |
| Mar 7, 2023 | 78.35% (0.78351) | 97.66th | v3 (v2023.03.01) |
| Mar 6, 2023 | 65.20% (0.65197) | 99.03th | v2 (v2022.01.01) |
| Feb 19, 2023 | 65.20% (0.65197) | 99.03th | v2 (v2022.01.01) |
| Oct 1, 2022 | 69.60% (0.69597) | 99.10th | v2 (v2022.01.01) |
| Feb 4, 2022 | 72.09% (0.72088) | 99.08th | v2 (v2022.01.01) |
References (5)
- http://support.avaya.com/css/P8/documents/100113338 x_refsource_CONFIRM
- http://www.securityfocus.com/bid/43780 vdb-entryx_refsource_BID
- http://www.us-cert.gov/cas/techalerts/TA10-285A.html third-party-advisoryx_refsource_CERTUS Government Resource
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2010/ms10-085 vendor-advisoryx_refsource_MS
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6806 vdb-entrysignaturex_refsource_OVAL
| Link | Providers | Tags |
|---|---|---|
| http://support.avaya.com/css/P8/documents/100113338 | x_refsource_CONFIRM | |
| http://www.securityfocus.com/bid/43780 | vdb-entryx_refsource_BID | |
| http://www.us-cert.gov/cas/techalerts/TA10-285A.html | third-party-advisoryx_refsource_CERTUS Government Resource | |
| https://docs.microsoft.com/en-us/security-updates/securitybulletins/2010/ms10-085 | vendor-advisoryx_refsource_MS | |
| https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6806 | vdb-entrysignaturex_refsource_OVAL |
Change history (0)
No recorded changes yet.