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-2006-3803

16
FAUCET Score

CVE-2006-3803 describes a race condition vulnerability in the JavaScript garbage collection mechanism of Mozilla Firefox 1.5.x, Thunderbird 1.5.x, and SeaMonkey 1.0.x. This flaw could allow remote attackers to execute arbitrary code by manipulating the garbage collector to prematurely delete a temporary variable during the creation of a new Function object. The vulnerability has a CVSS score of 5.1, indicating a medium severity with a network attack vector and high attack complexity, potentially leading to partial confidentiality, integrity, and availability impacts. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
1.5CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:1.5:*:*:*:*:*:*:*
1.5.0.1CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:1.5.0.1:*:*:*:*:*:*:*
1.5.0.2CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:1.5.0.2:*:*:*:*:*:*:*
1.5.0.3CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:1.5.0.3:*:*:*:*:*:*:*
1.5.0.4CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:1.5.0.4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.1MEDIUM

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
HIGH
Authentication
NONE
Exploitability Score
4.9
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
4.38%
Probability of exploitation in next 30 days
EPSS Percentile
90.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0438 is in the 88th percentile among its peer group of 19,958 CVEs.

Social Chatter

No social media mentions found for this CVE.

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

Patch Available

Vendor Patches (9)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 3Fixed in: seamonkey-0:1.0.3-0.el3.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: devhelp-0:0.10-0.2.el4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: seamonkey-0:1.0.3-0.el4.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: firefox-0:1.5.0.5-0.el4.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: thunderbird-0:1.5.0.5-0.el4.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux AS (Advanced Server) version 2.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux ES version 2.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux WS version 2.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Linux Advanced Workstation 2.1
View patch

Vendor Advisories (1)

redhatCVE-2006-3803Critical

security flaw

Jul 26, 2006

References

patches.sgi.com / support/free/security/advisories/20060703-01-U.asc
rhn.redhat.com / errata/RHSA-2006-0609.html
secunia.com / advisories/19873
PatchVendor Advisory
secunia.com / advisories/21216
PatchVendor Advisory
secunia.com / advisories/21228
PatchVendor Advisory
secunia.com / advisories/21229
PatchVendor Advisory
secunia.com / advisories/21243
secunia.com / advisories/21246
secunia.com / advisories/21250
secunia.com / advisories/21262
secunia.com / advisories/21269
secunia.com / advisories/21270
secunia.com / advisories/21275
secunia.com / advisories/21336
secunia.com / advisories/21343
secunia.com / advisories/21358
secunia.com / advisories/21361
secunia.com / advisories/21529
secunia.com / advisories/21532
secunia.com / advisories/21607
secunia.com / advisories/21631
secunia.com / advisories/22055
secunia.com / advisories/22065
secunia.com / advisories/22066
secunia.com / advisories/22210
security.gentoo.org / glsa/glsa-200608-02.xml
security.gentoo.org / glsa/glsa-200608-04.xml
securitytracker.com / id
securitytracker.com / id
securitytracker.com / id
exchange.xforce.ibmcloud.com / vulnerabilities/27984
issues.rpath.com / browse/RPL-536
issues.rpath.com / browse/RPL-537
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10635
usn.ubuntu.com / 327-1
usn.ubuntu.com / 329-1
gentoo.org / security/en/glsa/glsa-200608-03.xml
kb.cert.org / vuls/id/265964
Third Party AdvisoryUS Government Resource
mandriva.com / security/advisories
mandriva.com / security/advisories
mandriva.com / security/advisories
mozilla.org / security/announce/2006/mfsa2006-48.html
novell.com / linux/security/advisories/2006_48_seamonkey.html
redhat.com / support/errata/RHSA-2006-0594.html
redhat.com / support/errata/RHSA-2006-0608.html
redhat.com / support/errata/RHSA-2006-0610.html
redhat.com / support/errata/RHSA-2006-0611.html
securityfocus.com / archive/1/441333/100/0/threaded
securityfocus.com / archive/1/446657/100/200/threaded
securityfocus.com / archive/1/446658/100/200/threaded
securityfocus.com / bid/19181
Patch
ubuntu.com / usn/usn-350-1
ubuntu.com / usn/usn-354-1
us-cert.gov / cas/techalerts/TA06-208A.html
US Government Resource
vupen.com / english/advisories/2006/2998
vupen.com / english/advisories/2006/3748
vupen.com / english/advisories/2006/3749
vupen.com / english/advisories/2008/0083