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CVE-2006-4253

35
FAUCET Score

CVE-2006-4253 is a concurrency vulnerability in Mozilla Firefox versions 1.5.0.6 and earlier, also affecting Netscape 8.1 and K-Meleon 1.0.1. Remote attackers can exploit this flaw by using multiple JavaScript timed events to load a deeply nested XML file, followed by a browser redirect, leading to a denial of service (crash) and potentially arbitrary code execution. The vulnerability has a CVSS score of 7.6, indicating high severity due to its network-based attack vector, high attack complexity, and complete impact on confidentiality, integrity, and availability. While there is no evidence of active exploitation, an ExploitDB entry (EDB-28380) exists, and there is minimal community discussion or media coverage surrounding this older vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
1.0.1CPE matchmatch criteria
cpe:2.3:a:k-meleon_project:k-meleon:1.0.1:*:*:*:*:*:*:*
0.8CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:0.8:*:*:*:*:*:*:*
0.9CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:0.9:*:*:*:*:*:*:*
0.9CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:0.9:rc:*:*:*:*:*:*
0.9.1CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:0.9.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.6HIGH

AV:N/AC:H/Au:N/C:C/I:C/A:C

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
HIGH
Authentication
NONE
Exploitability Score
4.9
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
14.92%
Probability of exploitation in next 30 days
EPSS Percentile
96.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
ExploitDB: EDB-28380 · Aug 12, 2006
This CVE's current EPSS score of 0.1492 is in the 80th percentile among its peer group of 8,914 CVEs.

Social Chatter

No social media mentions found for this CVE.

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

Remediation

Patch Available

Vendor Patches (5)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 3Fixed in: seamonkey-0:1.0.5-0.1.el3
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: firefox-0:1.5.0.7-0.1.el4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: devhelp-0:0.10-0.4.el4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: seamonkey-0:1.0.5-0.1.el4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: thunderbird-0:1.5.0.7-0.1.el4
View patch

Vendor Advisories (1)

redhatCVE-2006-4253Important

security flaw

Aug 12, 2006

References

patches.sgi.com / support/free/security/advisories/20060901-01-P.asc
lcamtuf.coredump.cx / ffoxdie3.html
lcamtuf.coredump.cx / ffoxdie.html
bugzilla.mozilla.org / show_bug.cgi
secunia.com / advisories/21513
Vendor Advisory
secunia.com / advisories/21906
Vendor Advisory
secunia.com / advisories/21915
Vendor Advisory
secunia.com / advisories/21916
Vendor Advisory
secunia.com / advisories/21939
Vendor Advisory
secunia.com / advisories/21940
Vendor Advisory
secunia.com / advisories/21949
Vendor Advisory
secunia.com / advisories/21950
Vendor Advisory
secunia.com / advisories/22001
Vendor Advisory
secunia.com / advisories/22025
Vendor Advisory
secunia.com / advisories/22036
Vendor Advisory
secunia.com / advisories/22055
Vendor Advisory
secunia.com / advisories/22056
secunia.com / advisories/22066
secunia.com / advisories/22074
Vendor Advisory
secunia.com / advisories/22088
Vendor Advisory
secunia.com / advisories/22195
secunia.com / advisories/22210
Vendor Advisory
secunia.com / advisories/22274
Vendor Advisory
secunia.com / advisories/22391
Vendor Advisory
secunia.com / advisories/22422
Vendor Advisory
secunia.com / advisories/24711
security.gentoo.org / glsa/glsa-200609-19.xml
security.gentoo.org / glsa/glsa-200610-01.xml
security.gentoo.org / glsa/glsa-200610-04.xml
securitytracker.com / id
securitytracker.com / id
securitytracker.com / id
issues.rpath.com / browse/RPL-640
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9528
support.avaya.com / elmodocs2/security/ASA-2006-224.htm
www1.itrc.hp.com / service/cki/docDisplay.do
mandriva.com / security/advisories
mandriva.com / security/advisories
mozilla.org / security/announce/2006/mfsa2006-59.html
novell.com / linux/security/advisories/2006_54_mozilla.html
pianetapc.it / view.php
URL Repurposed
redhat.com / support/errata/RHSA-2006-0675.html
redhat.com / support/errata/RHSA-2006-0676.html
redhat.com / support/errata/RHSA-2006-0677.html
securiteam.com / securitynews/5VP0M0AJFW.html
securityfocus.com / archive/1/443020/100/100/threaded
securityfocus.com / archive/1/443306/100/100/threaded
securityfocus.com / archive/1/443500/100/100/threaded
securityfocus.com / archive/1/443528/100/0/threaded
securityfocus.com / archive/1/446140/100/0/threaded
securityfocus.com / archive/1/447837/100/200/threaded
securityfocus.com / archive/1/447840/100/200/threaded
securityfocus.com / archive/1/448956/100/100/threaded
securityfocus.com / archive/1/448984/100/100/threaded
securityfocus.com / archive/1/449245/100/100/threaded
securityfocus.com / archive/1/449487/100/0/threaded
securityfocus.com / archive/1/449726/100/0/threaded
securityfocus.com / bid/19488
securityfocus.com / bid/19534
ubuntu.com / usn/usn-350-1
ubuntu.com / usn/usn-351-1
ubuntu.com / usn/usn-352-1
ubuntu.com / usn/usn-354-1
vupen.com / english/advisories/2006/3617
vupen.com / english/advisories/2006/3748
vupen.com / english/advisories/2007/1198
vupen.com / english/advisories/2008/0083