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CVE-2011-0065

86
FAUCET Score

CVE-2011-0065 describes a critical use-after-free vulnerability in Mozilla Firefox versions prior to 3.5.19 and 3.6.17, and SeaMonkey before 2.0.14, specifically related to an OBJECT's mChannel. This flaw allows remote attackers to execute arbitrary code on affected systems. With a CVSS score of 10.0, it represents a severe risk due to its network-based attack vector, low attack complexity, and complete compromise of confidentiality, integrity, and availability. While not listed on the KEV catalog, multiple public exploits exist, including Metasploit modules and ExploitDB entries, indicating readily available exploit code. Despite the high severity and exploit availability, there is minimal community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
3.6CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:3.6:*:*:*:*:*:*:*
3.6.2CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:3.6.2:*:*:*:*:*:*:*
3.6.3CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:3.6.3:*:*:*:*:*:*:*
3.6.4CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:3.6.4:*:*:*:*:*:*:*
3.6.6CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:3.6.6:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

10.0HIGH

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

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

Exploit Intelligence

EPSS Score
73.83%
Probability of exploitation in next 30 days
EPSS Percentile
99.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
Metasploit: Mozilla Firefox 3.6.16 mChannel Use-After-Free · May 10, 2011
ExploitDB: EDB-18377 · Jan 17, 2012
This CVE's current EPSS score of 0.7383 is in the 99th percentile among its peer group of 51,466 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (6)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: firefox-0:3.6.17-2.el4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: firefox-0:3.6.17-1.el5_6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: xulrunner-0:1.9.2.17-3.el5_6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: firefox-0:3.6.17-1.el6_0
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: xulrunner-0:1.9.2.17-4.el6_0
View patch
mozillavendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2011-0065Critical

Mozilla mChannel use after free (MFSA 2011-13)

Apr 28, 2011

References

downloads.avaya.com / css/P8/documents/100144158
bugzilla.mozilla.org / show_bug.cgi
securityreason.com / securityalert/8326
securityreason.com / securityalert/8331
securityreason.com / securityalert/8340
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14142
debian.org / security/2011/dsa-2227
debian.org / security/2011/dsa-2228
debian.org / security/2011/dsa-2235
mandriva.com / security/advisories
mozilla.org / security/announce/2011/mfsa2011-13.html
Vendor Advisory