The Protected Mode feature in Microsoft Internet Explorer 7 through 10 on Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7…

published 2013-08-14 13y ago modified 2026-06-16 4mo ago also EUVD-2013-3124

cvss: 7.6; version 2.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 10.2%; EPSS 10.2% chance of exploitation in 30 days, percentile 95%
public exploits: 0; none known

The Protected Mode feature in Microsoft Internet Explorer 7 through 10 on Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows Server 2012, and Windows RT does not properly implement the Integrity Access Level (aka IL) protection mechanism, which allows remote attackers to obtain medium-integrity privileges by leveraging access to a low-integrity process, aka "Process Integrity Level Assignment Vulnerability."

Is CVE-2013-3186 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

Exploit prediction

10.21% chance of exploitation in the next 30 days, higher than 95% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
NVD	2.0	7.6	AV:N/AC:H/Au:N/C:C/I:C/A:C

Classification

Weakness

CWE-264 Permissions, Privileges, and Access Controls

References

docs.microsoft.com /en-us/security-updates/securitybulletins/2013/ms13-059
vendor-advisory
oval.cisecurity.org /repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18031
vdb-entry, signature

Sources

CVE List CVE-2013-3186
NVD CVE-2013-3186

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.