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CVE-2012-1961

18
FAUCET Score

CVE-2012-1961 describes a clickjacking vulnerability affecting Mozilla Firefox, Thunderbird, and SeaMonkey versions due to improper handling of duplicate X-Frame-Options headers. This medium-complexity vulnerability (CVSS 4.3) could allow remote attackers to conduct clickjacking attacks, potentially leading to unauthorized actions by a user. While the potential impact is information disclosure (I:P), there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
4.0CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:4.0:*:*:*:*:*:*:*
4.0CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:4.0:beta1:*:*:*:*:*:*
4.0CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:4.0:beta10:*:*:*:*:*:*
4.0CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:4.0:beta11:*:*:*:*:*:*
4.0CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:4.0:beta12:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.3MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.12%
Probability of exploitation in next 30 days
EPSS Percentile
79.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0212 is in the 67th percentile among its peer group of 19,958 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 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 (7)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: thunderbird-0:10.0.6-1.el5_8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: firefox-0:10.0.6-1.el5_8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: xulrunner-0:10.0.6-2.el5_8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: thunderbird-0:10.0.6-1.el6_3
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: firefox-0:10.0.6-1.el6_3
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: xulrunner-0:10.0.6-1.el6_3
View patch
mozillavendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2012-1961Moderate

Mozilla: X-Frame-Options header ignored when duplicated (MFSA 2012-51)

Jul 17, 2012

References

lists.opensuse.org / opensuse-security-announce/2012-07/msg00011.html
lists.opensuse.org / opensuse-security-announce/2012-07/msg00012.html
lists.opensuse.org / opensuse-security-announce/2012-07/msg00013.html
lists.opensuse.org / opensuse-security-announce/2012-07/msg00016.html
osvdb.org / 84003
rhn.redhat.com / errata/RHSA-2012-1088.html
bugzilla.mozilla.org / show_bug.cgi
secunia.com / advisories/49965
secunia.com / advisories/49968
secunia.com / advisories/49972
secunia.com / advisories/49977
secunia.com / advisories/49979
secunia.com / advisories/49992
secunia.com / advisories/49993
secunia.com / advisories/49994
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16993
mozilla.org / security/announce/2012/mfsa2012-51.html
Vendor Advisory
securityfocus.com / bid/54584
securitytracker.com / id
securitytracker.com / id
securitytracker.com / id
ubuntu.com / usn/USN-1509-1
ubuntu.com / usn/USN-1509-2
ubuntu.com / usn/USN-1510-1