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CVE-2012-0447

20
FAUCET Score

CVE-2012-0447 describes an information disclosure vulnerability affecting Mozilla Firefox, Thunderbird, and SeaMonkey versions prior to their respective fixes. The flaw stems from improper data initialization when converting ICO images to PNG, potentially allowing remote attackers to read sensitive information. With a CVSS score of 5.0, this vulnerability is of medium severity, requiring no authentication and having a low attack complexity, but only impacting confidentiality. There is no evidence of active exploitation, publicly available 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

5.0MEDIUM

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

Confidentiality Impact
PARTIAL
Integrity Impact
NONE
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
1.86%
Probability of exploitation in next 30 days
EPSS Percentile
77.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0186 is in the 64th percentile among its peer group of 23,701 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

Vendor Patches (1)

mozillavendor investigatingvia nvd_reference
View patch

References

lists.opensuse.org / opensuse-security-announce/2012-02/msg00011.html
bugzilla.mozilla.org / show_bug.cgi
secunia.com / advisories/49055
exchange.xforce.ibmcloud.com / vulnerabilities/72856
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14912
mandriva.com / security/advisories
mozilla.org / security/announce/2012/mfsa2012-06.html
Vendor Advisory