The signature-update functionality in Windows Defender on Microsoft Windows 7 and Windows Server 2008 R2 relies on an incorrect pathname, which allows local users to gain privileges via a Trojan horse application in the %SYSTEMDRIVE% top-level directory, aka "Microsoft Windows 7 Defender Improper Pathname Vulnerability."
Published Jul 10, 2013
6.9
MEDIUMCVSS 2.0
EPSS 1.76%
Description
The signature-update functionality in Windows Defender on Microsoft Windows 7 and Windows Server 2008 R2 relies on an incorrect pathname, which allows local users to gain privileges via a Trojan horse application in the %SYSTEMDRIVE% top-level directory, aka "Microsoft Windows 7 Defender Improper Pathname Vulnerability."
Affected products
No data.
- 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:L/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 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 (16 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.76% (0.01765) | 77.24th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.76% (0.01765) | 75.09th | v5 (v2026.06.15) |
| Mar 24, 2026 | 3.75% (0.03751) | 87.92th | v4 (v2025.03.14) |
| Dec 20, 2025 | 7.54% (0.07544) | 91.49th | v4 (v2025.03.14) |
| Nov 18, 2025 | 8.65% (0.08653) | 91.58th | v4 (v2025.03.14) |
| Oct 18, 2025 | 7.32% (0.07320) | 91.22th | v4 (v2025.03.14) |
| Mar 30, 2025 | 2.04% (0.02042) | 82.24th | v4 (v2025.03.14) |
| Mar 29, 2025 | 4.01% (0.04009) | 80.45th | v4 (v2025.03.14) |
| Mar 17, 2025 | 2.04% (0.02042) | 82.64th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.10% (0.00101) | 43.17th | v3 (v2023.03.01) |
| May 31, 2024 | 0.06% (0.00055) | 22.53th | v3 (v2023.03.01) |
| Jan 25, 2024 | 0.06% (0.00055) | 20.51th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.06% (0.00064) | 26.10th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.28% (0.02283) | 81.39th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.28% (0.02283) | 79.63th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.28% (0.02283) | 58.19th | v2 (v2022.01.01) |
References (4)
- http://blogs.technet.com/b/srd/archive/2013/07/09/assessing-risk-for-the-july-2013-security-updates.aspx x_refsource_CONFIRMVendor Advisory
- http://www.us-cert.gov/ncas/alerts/TA13-190A third-party-advisoryx_refsource_CERTThird Party AdvisoryUS Government Resource
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-058 vendor-advisoryx_refsource_MS
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A17253 vdb-entrysignaturex_refsource_OVAL
| Link | Providers | Tags |
|---|---|---|
| http://blogs.technet.com/b/srd/archive/2013/07/09/assessing-risk-for-the-july-2013-security-updates.aspx | x_refsource_CONFIRMVendor Advisory | |
| http://www.us-cert.gov/ncas/alerts/TA13-190A | third-party-advisoryx_refsource_CERTThird Party AdvisoryUS Government Resource | |
| https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-058 | vendor-advisoryx_refsource_MS | |
| https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A17253 | vdb-entrysignaturex_refsource_OVAL |
Change history (0)
No recorded changes yet.