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CVE-2006-6500

23
FAUCET Score

CVE-2006-6500 describes a heap-based buffer overflow vulnerability in older versions of Mozilla Firefox, Thunderbird, and SeaMonkey. This flaw allows remote attackers to trigger a denial of service (crash) and potentially execute arbitrary code by manipulating CSS cursor images that lead to incorrect size calculations. With a CVSS score of 6.8, it presents a medium attack complexity and could result in partial confidentiality, integrity, and availability impacts. Despite its age and high FAUCET risk score, there is no evidence of active exploitation, public exploit code, or significant community discussion, and it is not listed in CISA's KEV catalog.

Impacted Technologies

VendorProductVersion(s)CPE
>= 1.5, < 1.5.0.9CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
>= 2.0, < 2.0.0.1CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
< 1.0.7CPE matchmatch criteria
cpe:2.3:a:mozilla:seamonkey:*:*:*:*:*:*:*:*
< 1.5.0.9CPE matchmatch criteria
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
3.1CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:3.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

6.8MEDIUM

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
8.35%
Probability of exploitation in next 30 days
EPSS Percentile
94.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0835 is in the 94th 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

Vendor Patches (1)

mozillavendor investigatingvia nvd_reference
View patch

References

h20000.www2.hp.com / bizsupport/TechSupport/Document.jsp
Broken Link
secunia.com / advisories/23282
Third Party Advisory
secunia.com / advisories/23420
Third Party Advisory
secunia.com / advisories/23422
Third Party Advisory
secunia.com / advisories/23545
Third Party Advisory
secunia.com / advisories/23598
Third Party Advisory
secunia.com / advisories/23614
Third Party Advisory
secunia.com / advisories/23672
Third Party Advisory
secunia.com / advisories/23692
Third Party Advisory
security.gentoo.org / glsa/glsa-200701-02.xml
Third Party Advisory
securitytracker.com / id
Third Party AdvisoryVDB Entry
securitytracker.com / id
Third Party AdvisoryVDB Entry
securitytracker.com / id
Third Party AdvisoryVDB Entry
gentoo.org / security/en/glsa/glsa-200701-03.xml
Third Party Advisory
gentoo.org / security/en/glsa/glsa-200701-04.xml
Third Party Advisory
kb.cert.org / vuls/id/722244
Third Party AdvisoryUS Government Resource
mandriva.com / security/advisories
Third Party Advisory
mandriva.com / security/advisories
Third Party Advisory
mozilla.org / security/announce/2006/mfsa2006-69.html
Vendor Advisory
novell.com / linux/security/advisories/2006_80_mozilla.html
Broken Link
novell.com / linux/security/advisories/2007_06_mozilla.html
Broken Link
securityfocus.com / bid/21668
Third Party AdvisoryVDB Entry
us-cert.gov / cas/techalerts/TA06-354A.html
Third Party AdvisoryUS Government Resource
vupen.com / english/advisories/2006/5068
Third Party Advisory
vupen.com / english/advisories/2008/0083
Third Party Advisory