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CVE-2010-1203

27
FAUCET Score

CVE-2010-1203 describes a critical vulnerability in the JavaScript engine of Mozilla Firefox versions 3.6.x prior to 3.6.4. This flaw allows remote attackers to trigger a denial of service through memory corruption, leading to an application crash, and potentially enabling arbitrary code execution. With a CVSS score of 9.3, it is a highly severe vulnerability, indicating a network-based attack with medium complexity, but high impact on confidentiality, integrity, and availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
3.6CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:3.6:*:*:*:*:*:*:*
3.6.2CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:3.6.2:*:*:*:*:*:*:*
3.6.3CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:3.6.3:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

9.3HIGH

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

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
3.87%
Probability of exploitation in next 30 days
EPSS Percentile
89.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0387 is in the 51st percentile among its peer group of 8,920 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 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 0.1 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 5Fixed in: yelp-0:2.16.0-26.el5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: firefox-0:3.6.4-8.el4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: devhelp-0:0.12-21.el5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: esc-0:1.1.0-12.el5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: firefox-0:3.6.4-8.el5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: gnome-python2-extras-0:2.14.2-7.el5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: totem-0:2.16.7-7.el5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: xulrunner-0:1.9.2.4-10.el5
View patch
mozillavendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2010-1203Critical

Mozilla Crashes with evidence of memory corruption

Jun 22, 2010

References

lists.opensuse.org / opensuse-security-announce/2010-07/msg00005.html
bugzilla.mozilla.org / show_bug.cgi
bugzilla.mozilla.org / show_bug.cgi
secunia.com / advisories/40323
Vendor Advisory
secunia.com / advisories/40326
Vendor Advisory
secunia.com / advisories/40401
Vendor Advisory
secunia.com / advisories/40481
Vendor Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/59662
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10401
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8317
support.avaya.com / css/P8/documents/100091069
ubuntu.com / usn/usn-930-1
mandriva.com / security/advisories
mozilla.org / security/announce/2010/mfsa2010-26.html
Vendor Advisory
redhat.com / support/errata/RHSA-2010-0500.html
redhat.com / support/errata/RHSA-2010-0501.html
securityfocus.com / bid/41050
securityfocus.com / bid/41099
securitytracker.com / id
securitytracker.com / id
ubuntu.com / usn/usn-930-2
vupen.com / english/advisories/2010/1551
Vendor Advisory
vupen.com / english/advisories/2010/1557
Vendor Advisory
vupen.com / english/advisories/2010/1640
Vendor Advisory
vupen.com / english/advisories/2010/1773
Vendor Advisory