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CVE-2013-3154

24
FAUCET Score

CVE-2013-3154 describes an improper pathname vulnerability in the signature-update functionality of Windows Defender on Microsoft Windows 7 and Windows Server 2008 R2. This flaw allows a local attacker to achieve privilege escalation by placing a malicious application in the %SYSTEMDRIVE% top-level directory. With a CVSS score of 6.9, this vulnerability has a medium attack complexity and could lead to complete compromise of confidentiality, integrity, and availability. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:a:microsoft:windows_defender:*:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:o:microsoft:windows_7:-:*:*:*:*:*:*:*
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:o:microsoft:windows_server_2008:*:r2:x64:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

6.9MEDIUM

AV:L/AC:M/Au:N/C:C/I:C/A:C

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
LOCAL
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
3.4
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.76%
Probability of exploitation in next 30 days
EPSS Percentile
75.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0176 is in the 95th percentile among its peer group of 1,595 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

blogs.technet.com / b/srd/archive/2013/07/09/assessing-risk-for-the-july-2013-security-updates.aspx
Vendor Advisory
docs.microsoft.com / en-us/security-updates/securitybulletins/2013/ms13-058
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A17253
us-cert.gov / ncas/alerts/TA13-190A
Third Party AdvisoryUS Government Resource