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Vulnerability record · CVE-2006-6500 · published 20 December 2006

CVE-2006-6500: Mozilla firefox memory buffer overflow vulnerability

Mozilla · Firefox

Heap-based buffer overflow in Mozilla Firefox 2.x before 2.0.0.1, 1.5.x before 1.5.0.9, Thunderbird before 1.5.0.9, and SeaMonkey before 1.0.7 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code by setting the CSS cursor to certain images that cause an incorrect size calculation when converting to a Windows bitmap.

6.8 CVSS 2.0 Medium EPSS 8.6% · top 5.1% CWE-119 · Memory buffer overflow
6.8CVSS 2.0 base score
8.6%EPSS exploitation probability, 30 days
NoNot in CISA KEV
5Affected product versions listed by NVD
50References
16 Jun 2026Last modified by NVD

Description

Heap-based buffer overflow in Mozilla Firefox 2.x before 2.0.0.1, 1.5.x before 1.5.0.9, Thunderbird before 1.5.0.9, and SeaMonkey before 1.0.7 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code by setting the CSS cursor to certain images that cause an incorrect size calculation when converting to a Windows bitmap.

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

Affected products

5 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c00771742 Broken Link
http://secunia.com/advisories/23282 Third Party Advisory
http://secunia.com/advisories/23420 Third Party Advisory
http://secunia.com/advisories/23422 Third Party Advisory
http://secunia.com/advisories/23545 Third Party Advisory
http://secunia.com/advisories/23598 Third Party Advisory
http://secunia.com/advisories/23614 Third Party Advisory
http://secunia.com/advisories/23672 Third Party Advisory
http://secunia.com/advisories/23692 Third Party Advisory
http://security.gentoo.org/glsa/glsa-200701-02.xml Third Party Advisory
http://securitytracker.com/id?1017399 Third Party AdvisoryVDB Entry
http://securitytracker.com/id?1017400 Third Party AdvisoryVDB Entry
http://securitytracker.com/id?1017401 Third Party AdvisoryVDB Entry
http://www.gentoo.org/security/en/glsa/glsa-200701-03.xml Third Party Advisory
http://www.gentoo.org/security/en/glsa/glsa-200701-04.xml Third Party Advisory
http://www.kb.cert.org/vuls/id/722244 Third Party AdvisoryUS Government Resource
http://www.mandriva.com/security/advisories?name=MDKSA-2007:010 Third Party Advisory
http://www.mandriva.com/security/advisories?name=MDKSA-2007:011 Third Party Advisory
http://www.mozilla.org/security/announce/2006/mfsa2006-69.html Vendor Advisory
http://www.novell.com/linux/security/advisories/2006_80_mozilla.html Broken Link
http://www.novell.com/linux/security/advisories/2007_06_mozilla.html Broken Link
http://www.securityfocus.com/bid/21668 Third Party AdvisoryVDB Entry
http://www.us-cert.gov/cas/techalerts/TA06-354A.html Third Party AdvisoryUS Government Resource
http://www.vupen.com/english/advisories/2006/5068 Third Party Advisory
http://www.vupen.com/english/advisories/2008/0083 Third Party Advisory
http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c00771742 Broken Link
http://secunia.com/advisories/23282 Third Party Advisory
http://secunia.com/advisories/23420 Third Party Advisory
http://secunia.com/advisories/23422 Third Party Advisory
http://secunia.com/advisories/23545 Third Party Advisory
http://secunia.com/advisories/23598 Third Party Advisory
http://secunia.com/advisories/23614 Third Party Advisory
http://secunia.com/advisories/23672 Third Party Advisory
http://secunia.com/advisories/23692 Third Party Advisory
http://security.gentoo.org/glsa/glsa-200701-02.xml Third Party Advisory
http://securitytracker.com/id?1017399 Third Party AdvisoryVDB Entry
http://securitytracker.com/id?1017400 Third Party AdvisoryVDB Entry
http://securitytracker.com/id?1017401 Third Party AdvisoryVDB Entry
http://www.gentoo.org/security/en/glsa/glsa-200701-03.xml Third Party Advisory
http://www.gentoo.org/security/en/glsa/glsa-200701-04.xml Third Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2006-6500), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.