Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2012-5830

30
FAUCET Score

CVE-2012-5830 is a use-after-free vulnerability affecting Mozilla Firefox, Thunderbird, and SeaMonkey on Mac OS X, allowing remote attackers to execute arbitrary code through a crafted HTML document. With a CVSS score of 8.8 (High), this vulnerability can be exploited with low attack complexity and no authentication, leading to high impacts on confidentiality, integrity, and availability. While no public exploit code or active exploitation has been identified, the vulnerability has garnered minimal community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
< 17.0CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
>= 10.0, < 10.0.11CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
< 2.14CPE matchmatch criteria
cpe:2.3:a:mozilla:seamonkey:*:*:*:*:*:*:*:*
< 17.0CPE matchmatch criteria
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
>= 10.0, < 10.0.11CPE matchmatch criteria
cpe:2.3:a:mozilla:thunderbird_esr:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
3.81%
Probability of exploitation in next 30 days
EPSS Percentile
88.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0381 is in the 88th percentile among its peer group of 14,855 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (7)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: thunderbird-0:10.0.11-1.el5_8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: firefox-0:10.0.11-1.el5_8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: xulrunner-0:10.0.11-1.el5_8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: thunderbird-0:10.0.11-1.el6_3
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: firefox-0:10.0.11-1.el6_3
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: xulrunner-0:10.0.11-1.el6_3
View patch
mozillavendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2012-5830Critical

Mozilla: Use-after-free, buffer overflow, and memory corruption issues found using Address Sanitizer (MFSA 2012-106)

Nov 20, 2012

References

lists.opensuse.org / opensuse-security-announce/2012-11/msg00021.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2013-01/msg00022.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-updates/2012-11/msg00090.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-updates/2012-11/msg00092.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-updates/2012-11/msg00093.html
Mailing ListThird Party Advisory
osvdb.org / 87598
Broken Link
rhn.redhat.com / errata/RHSA-2012-1482.html
Third Party Advisory
rhn.redhat.com / errata/RHSA-2012-1483.html
Third Party Advisory
bugzilla.mozilla.org / show_bug.cgi
ExploitIssue TrackingVendor Advisory
secunia.com / advisories/51359
Broken Link
secunia.com / advisories/51360
Broken Link
secunia.com / advisories/51369
Broken Link
secunia.com / advisories/51370
Broken Link
secunia.com / advisories/51381
Broken Link
secunia.com / advisories/51434
Broken Link
secunia.com / advisories/51439
Broken Link
secunia.com / advisories/51440
Broken Link
exchange.xforce.ibmcloud.com / vulnerabilities/80183
Third Party AdvisoryVDB Entry
mozilla.org / security/announce/2012/mfsa2012-106.html
Vendor Advisory
ubuntu.com / usn/USN-1636-1
Third Party Advisory
ubuntu.com / usn/USN-1638-1
Third Party Advisory
ubuntu.com / usn/USN-1638-2
Third Party Advisory
ubuntu.com / usn/USN-1638-3
Third Party Advisory