The Secure Channel (aka SChannel) security package in Microsoft Windows XP SP2 and SP3, and Windows Server 2003 SP2, does not properly validate certificate request messages from TLS and SSL servers, which allows remote servers to execute arbitrary code via a crafted SSL response, aka "SChannel Malformed Certificate Request Remote Code Execution Vulnerability."
Published Aug 11, 2010
9.3
HIGHCVSS 2.0
EPSS 15.29%
Description
The Secure Channel (aka SChannel) security package in Microsoft Windows XP SP2 and SP3, and Windows Server 2003 SP2, does not properly validate certificate request messages from TLS and SSL servers, which allows remote servers to execute arbitrary code via a crafted SSL response, aka "SChannel Malformed Certificate Request Remote Code Execution Vulnerability."
Affected products
No data.
- 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.
AV:N/AC:M/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 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 (29 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 15.29% (0.15288) | 96.68th | v5 (v2026.06.15) |
| Jun 15, 2026 | 15.35% (0.15355) | 96.35th | v5 (v2026.06.15) |
| Apr 29, 2026 | 11.66% (0.11659) | 93.70th | v4 (v2025.03.14) |
| Dec 28, 2025 | 19.16% (0.19156) | 95.14th | v4 (v2025.03.14) |
| Dec 27, 2025 | 21.88% (0.21883) | 95.60th | v4 (v2025.03.14) |
| Oct 28, 2025 | 19.16% (0.19156) | 95.07th | v4 (v2025.03.14) |
| Oct 27, 2025 | 21.88% (0.21883) | 95.52th | v4 (v2025.03.14) |
| Oct 1, 2025 | 19.16% (0.19156) | 95.16th | v4 (v2025.03.14) |
| Mar 30, 2025 | 21.88% (0.21883) | 95.28th | v4 (v2025.03.14) |
| Mar 29, 2025 | 29.47% (0.29474) | 94.64th | v4 (v2025.03.14) |
| Mar 17, 2025 | 22.21% (0.22209) | 95.34th | v4 (v2025.03.14) |
| Feb 8, 2025 | 67.12% (0.67115) | 98.17th | v3 (v2023.03.01) |
| Dec 28, 2024 | 78.00% (0.77996) | 98.46th | v3 (v2023.03.01) |
| Dec 17, 2024 | 85.68% (0.85684) | 98.78th | v3 (v2023.03.01) |
| Sep 28, 2024 | 81.30% (0.81304) | 98.41th | v3 (v2023.03.01) |
| Jun 29, 2024 | 84.75% (0.84753) | 98.54th | v3 (v2023.03.01) |
| May 16, 2024 | 86.35% (0.86351) | 98.57th | v3 (v2023.03.01) |
| Apr 3, 2024 | 89.86% (0.89858) | 98.72th | v3 (v2023.03.01) |
| Feb 20, 2024 | 90.66% (0.90660) | 98.73th | v3 (v2023.03.01) |
| Jan 7, 2024 | 91.91% (0.91907) | 98.71th | v3 (v2023.03.01) |
| Nov 25, 2023 | 91.82% (0.91819) | 98.66th | v3 (v2023.03.01) |
| Aug 28, 2023 | 93.03% (0.93031) | 98.67th | v3 (v2023.03.01) |
| May 21, 2023 | 92.65% (0.92650) | 98.50th | v3 (v2023.03.01) |
| Apr 1, 2023 | 92.44% (0.92437) | 98.41th | v3 (v2023.03.01) |
| Mar 7, 2023 | 89.97% (0.89971) | 98.15th | v3 (v2023.03.01) |
| Mar 6, 2023 | 36.85% (0.36846) | 97.89th | v2 (v2022.01.01) |
| Dec 18, 2022 | 36.85% (0.36846) | 97.85th | v2 (v2022.01.01) |
| Oct 10, 2022 | 38.71% (0.38714) | 97.93th | v2 (v2022.01.01) |
| Feb 4, 2022 | 49.72% (0.49719) | 98.28th | v2 (v2022.01.01) |
References (3)
- http://www.us-cert.gov/cas/techalerts/TA10-222A.html third-party-advisoryx_refsource_CERTUS Government Resource
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2010/ms10-049 vendor-advisoryx_refsource_MS
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11787 vdb-entrysignaturex_refsource_OVAL
| Link | Providers | Tags |
|---|---|---|
| http://www.us-cert.gov/cas/techalerts/TA10-222A.html | third-party-advisoryx_refsource_CERTUS Government Resource | |
| https://docs.microsoft.com/en-us/security-updates/securitybulletins/2010/ms10-049 | vendor-advisoryx_refsource_MS | |
| https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11787 | vdb-entrysignaturex_refsource_OVAL |
Change history (0)
No recorded changes yet.