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CVE-2010-3773

22
FAUCET Score

CVE-2010-3773 describes a vulnerability in Mozilla Firefox and SeaMonkey, specifically when the Firebug add-on's XMLHttpRequestSpy module is active. This flaw allows remote attackers to execute arbitrary JavaScript through a specially crafted HTTP response due to improper handling of interactions between the XMLHttpRequestSpy object and chrome privileged objects. With a CVSS score of 6.8, this vulnerability has a medium severity, requiring user interaction (medium attack complexity) but potentially leading to partial compromise of confidentiality, integrity, and availability. There is no evidence of active exploitation, public exploit code, or significant community discussion 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:*:*:*:*:*:*:*
3.6.4CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:3.6.4:*:*:*:*:*:*:*
3.6.6CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:3.6.6:*:*:*:*:*:*:*

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
3.08%
Probability of exploitation in next 30 days
EPSS Percentile
86.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0308 is in the 80th 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

Patch Available

Vendor Patches (9)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: xulrunner-0:1.9.2.13-3.el6_0
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: firefox-0:3.6.13-3.el4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: firefox-0:3.6.13-2.el5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: xulrunner-0:1.9.2.13-3.el5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: firefox-0:3.6.13-2.el6_0
View patch
mozillavendor investigatingvia nvd_reference
View patch
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux Extended Update Support 4.8Fixed in: firefox
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux Extended Update Support 5.5Fixed in: firefox
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux Extended Update Support 6.0Fixed in: firefox

Vendor Advisories (1)

redhatCVE-2010-3773Critical

Mozilla incomplete fix for CVE-2010-0179 (MFSA 2010-82)

Dec 9, 2010

References

lists.fedoraproject.org / pipermail/package-announce/2010-December/052022.html
lists.fedoraproject.org / pipermail/package-announce/2010-December/052032.html
lists.fedoraproject.org / pipermail/package-announce/2010-December/052502.html
lists.fedoraproject.org / pipermail/package-announce/2010-December/052504.html
lists.opensuse.org / opensuse-security-announce/2011-01/msg00002.html
bugzilla.mozilla.org / show_bug.cgi
secunia.com / advisories/42716
secunia.com / advisories/42818
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11960
support.avaya.com / css/P8/documents/100124650
debian.org / security/2010/dsa-2132
mandriva.com / security/advisories
mozilla.org / security/announce/2010/mfsa2010-82.html
Vendor Advisory
redhat.com / support/errata/RHSA-2010-0966.html
securityfocus.com / bid/45354
ubuntu.com / usn/USN-1019-1
vupen.com / english/advisories/2011/0030