Is CVE-2011-2159 actively exploited?

No active exploitation of CVE-2011-2159 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2011-2159 be exploited remotely?

Yes. CVE-2011-2159 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2011-2159?

CVE-2011-2159 has a CVSS score of 10.0 (CRITICAL).

HOME VULNERABILITIESCVE-2011-2159

CRITICAL

CVE-2011-2159

NVD-CWE-OtherPublished: May 20, 2011· Updated: Jun 16, 2026

10.0

CVSS v3.1

Official Description

The SmarterTools SmarterStats 6.0 web server omits the Content-Type header for certain resources, which might allow remote attackers to have an unspecified impact by leveraging an interpretation conflict involving (1) Admin/Defaults/frmDefaultSiteSettings.aspx, (2) Admin/Defaults/frmServerDefaults.aspx, (3) Admin/frmReportSettings.aspx, (4) Admin/frmSite.aspx, (5) App_Themes/Default/ButtonBarIcons.xml, (6) App_Themes/Default/Skin.xml, (7) Client/frmImportSettings.aspx, (8) Client/frmSeoSettings.aspx, (9) Services/Web.config, (10) aspnet_client/system_web/4_0_30319/, (11) clientaccesspolicy.xml, (12) cloudscan.exe, (13) crossdomain.xml, or (14) sitemap.xml. NOTE: it is possible that only clients, not the SmarterStats product, could be affected by this issue.

NVD Source

Technical Analysis

CVE-2011-2159 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.