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Fencer Intel
medium 4.3

CVE-2010-3770 json

Multiple cross-site scripting (XSS) vulnerabilities in the rendering engine in Mozilla Firefox before 3.5.16 and 3.6.x before 3.6.13, and S…

published 15y ago modified 4mo ago also EUVD-2010-3749

cvss
4.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
4.5%
EPSS 4.5% chance of exploitation in 30 days, percentile 91%
public exploits
1
Exploit-DB

Summary

Multiple cross-site scripting (XSS) vulnerabilities in the rendering engine in Mozilla Firefox before 3.5.16 and 3.6.x before 3.6.13, and SeaMonkey before 2.0.11, allow remote attackers to inject arbitrary web script or HTML via (1) x-mac-arabic, (2) x-mac-farsi, or (3) x-mac-hebrew characters that may be converted to angle brackets during rendering.

Patch / fix

  • firefox RHEL 4 3.6.13-3.el4
  • firefox RHEL 5 3.6.13-2.el5
  • firefox RHEL 6 3.6.13-2.el6_0
  • xulrunner RHEL 5 1.9.2.13-3.el5
  • xulrunner RHEL 6 1.9.2.13-3.el6_0

red hat advisories RHSA-2010:0966

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2010-3770 updated cvss 5.1

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

  • Red Hat Enterprise Linux (v. 5 server) firefox 3.6.13-2.el5, xulrunner 1.9.2.13-3.el5 Red Hat Enterprise Linux AS version 4 firefox 3.6.13-3.el4 Red Hat Enterprise Linux Desktop (v. 5 client) firefox 3.6.13-2.el5, xulrunner 1.9.2.13-3.el5 Red Hat Enterprise Linux Desktop (v. 6) firefox 3.6.13-2.el6_0, xulrunner 1.9.2.13-3.el6_0 Red Hat Enterprise Linux Desktop Optional (v. 6) xulrunner 1.9.2.13-3.el6_0 Red Hat Enterprise Linux Desktop version 4 firefox 3.6.13-3.el4
    +8 more products
    Red Hat Enterprise Linux Desktop Workstation (v. 5 client) xulrunner 1.9.2.13-3.el5 Red Hat Enterprise Linux ES version 4 firefox 3.6.13-3.el4 Red Hat Enterprise Linux HPC Node Optional (v. 6) firefox 3.6.13-2.el6_0, xulrunner 1.9.2.13-3.el6_0 Red Hat Enterprise Linux Server (v. 6) firefox 3.6.13-2.el6_0, xulrunner 1.9.2.13-3.el6_0 Red Hat Enterprise Linux Server Optional (v. 6) xulrunner 1.9.2.13-3.el6_0 Red Hat Enterprise Linux Workstation (v. 6) firefox 3.6.13-2.el6_0, xulrunner 1.9.2.13-3.el6_0 Red Hat Enterprise Linux Workstation Optional (v. 6) xulrunner 1.9.2.13-3.el6_0 Red Hat Enterprise Linux WS version 4 firefox 3.6.13-3.el4
    fixed: vendor fix RHSA-2010:0966

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Timeline

  1. First public exploit (EDB-35095)
  2. Published

Exploit prediction

4.45% chance of exploitation in the next 30 days, higher than 91% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • EDB-35095 Mozilla Firefox/Thunderbird/SeaMonkey - Multiple HTML Injection Vulnerabilities remote, 2010-12-09

CVSS scores

assigned by version score vector
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.