CVE-2013-3154

6.9 MEDIUM 2% exploit odds Fix listed

What it is

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."

At a glance

Exploitability: Can be exploited locally on the machine without logging in. High risk of data exposure, data tampering, service disruption.
Exploit odds: 1.8% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2013-07-10 03:46 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-16 23:54 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 1.8% in the next 30 days (EPSS).
Severity: 6.9 MEDIUM (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2013-07-10 03:46 UTC
Last modified: 2026-06-16 23:54 UTC
Exploit probability: 1.8% · EPSS, next 30 days
Weakness: CWE-264
Record status: Modified

Affected

Microsoft Windows Defender
Microsoft Windows 7
Microsoft Windows Server 2008

Attack profile CVSS 2.0 · 6.9

Attack vector: Local
Complexity: Medium
Authentication: None
Confidentiality: Complete
Integrity: Complete
Availability: Complete

Raw vector

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

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2013-3154.md and follow it. Check whether this project is affected by CVE-2013-3154. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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Fix and advisories

References

NVD record · CVE.org record