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CVE-2010-3770

27
FAUCET Score

CVE-2010-3770 describes multiple cross-site scripting (XSS) vulnerabilities in the rendering engines of Mozilla Firefox (versions before 3.5.16 and 3.6.x before 3.6.13) and SeaMonkey (versions before 2.0.11). These flaws allow remote attackers to inject arbitrary web script or HTML by converting specific x-mac-arabic, x-mac-farsi, or x-mac-hebrew characters into angle brackets during rendering. The vulnerability has a CVSS score of 4.3 (Medium), indicating a network-based attack with medium complexity and potential for partial integrity impact (AV:N/AC:M/I:P). While there is an ExploitDB entry (EDB-35095) detailing HTML injection, there is no evidence of active exploitation in the wild, nor is it listed in CISA's KEV catalog. Community discussion and media coverage are minimal, suggesting low public awareness.

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

4.3MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
4.45%
Probability of exploitation in next 30 days
EPSS Percentile
90.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
ExploitDB: EDB-35095 · Dec 9, 2010
This CVE's current EPSS score of 0.0445 is in the 88th 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)

mozillapatch availablevia nvd_reference
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
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: xulrunner-0:1.9.2.13-3.el6_0
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-2010-3770Moderate

Mozilla XSS hazard in multiple character encodings (MFSA 2010-84)

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
Patch
secunia.com / advisories/42716
secunia.com / advisories/42818
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12348
support.avaya.com / css/P8/documents/100124650
debian.org / security/2010/dsa-2132
mandriva.com / security/advisories
mozilla.org / security/announce/2010/mfsa2010-84.html
PatchVendor Advisory
redhat.com / support/errata/RHSA-2010-0966.html
securityfocus.com / bid/45353
securitytracker.com / id
ubuntu.com / usn/USN-1019-1
vupen.com / english/advisories/2011/0030