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CVE-2011-2486

19
FAUCET Score

CVE-2011-2486 describes a vulnerability in nspluginwrapper versions prior to 1.4.4, where it fails to properly convey Private Browsing mode settings to Firefox plugins, specifically Flash. This allows remote attackers to bypass intended access restrictions by preventing plugins from recognizing they should operate in private mode. With a CVSS score of 5.0 (AV:N/AC:L/Au:N/C:N/I:P/A:N), this vulnerability is of medium severity, requiring no authentication and having a low attack complexity, primarily impacting integrity. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
1.4.2CPE matchmatch criteria
cpe:2.3:a:nspluginwrapper:nspluginwrapper:1.4.2:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.47%
Probability of exploitation in next 30 days
EPSS Percentile
82.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0247 is in the 74th percentile among its peer group of 23,690 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 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

Patch Available

Vendor Patches (2)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: nspluginwrapper-0:1.4.4-1.el6_3
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: nspluginwrapper

Vendor Advisories (1)

redhatCVE-2011-2486Low

nspluginwrapper: NPNVprivateModeBool variable not forwarded

Mar 25, 2011

References

lwn.net / Alerts/524725
rhn.redhat.com / errata/RHSA-2012-1459.html
bugzilla.novell.com / show_bug.cgi
bugzilla.redhat.com / show_bug.cgi
github.com / davidben/nspluginwrapper/commit/7e4ab8e1189846041f955e6c83f72bc1624e7a98
securitytracker.com / id
Patch