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CVE-2012-4192

17
FAUCET Score

CVE-2012-4192 is a Same Origin Policy bypass vulnerability affecting Mozilla Firefox 16.0, Thunderbird 16.0, and SeaMonkey 2.13. A remote attacker can exploit this by crafting a malicious website to read properties of a Location object. This vulnerability has a CVSS score of 4.3 (Medium), indicating a network-based attack with medium complexity and potential for partial confidentiality impact. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
16.0CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:16.0:*:*:*:*:*:*:*
2.13CPE matchmatch criteria
cpe:2.3:a:mozilla:seamonkey:2.13:*:*:*:*:*:*:*
16.0CPE matchmatch criteria
cpe:2.3:a:mozilla:thunderbird:16.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.3MEDIUM

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

Confidentiality Impact
PARTIAL
Integrity Impact
NONE
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
1.41%
Probability of exploitation in next 30 days
EPSS Percentile
69.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0141 is in the 41st percentile among its peer group of 19,955 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

Vendor Patches (1)

mozillavendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2012-4192Critical

Mozilla: defaultValue security checks not applied (firefox-16) (MFSA 2012-89)

Oct 11, 2012

References

lists.opensuse.org / opensuse-security-announce/2012-10/msg00010.html
bugzilla.mozilla.org / show_bug.cgi
secunia.com / advisories/50904
secunia.com / advisories/50929
secunia.com / advisories/50984
secunia.com / advisories/55318
exchange.xforce.ibmcloud.com / vulnerabilities/79210
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A17095
mozilla.org / security/announce/2012/mfsa2012-89.html
Vendor Advisory
thespanner.co.uk / 2012/10/10/firefox-knows-what-your-friends-did-last-summer
Exploit
ubuntu.com / usn/USN-1608-1
ubuntu.com / usn/USN-1611-1