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Fencer Intel
critical 9.3

CVE-2010-3166 json

Heap-based buffer overflow in the nsTextFrameUtils::TransformText function in Mozilla Firefox before 3.5.12 and 3.6.x before 3.6.9, Thunder…

published 2010-09-09 16 y ago modified 2026-06-16 4 mo ago also EUVD-2010-3166

cvss
9.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
5.6%
EPSS 5.6% chance of exploitation in 30 days, percentile 92%
public exploits
0
none known

Summary

Heap-based buffer overflow in the nsTextFrameUtils::TransformText function in Mozilla Firefox before 3.5.12 and 3.6.x before 3.6.9, Thunderbird before 3.0.7 and 3.1.x before 3.1.3, and SeaMonkey before 2.0.7 might allow remote attackers to execute arbitrary code via a bidirectional text run.

Patch / fix

  • firefox RHEL 4 3.6.9-1.el4
  • firefox RHEL 5 3.6.9-2.el5
  • nss RHEL 4 3.12.7-1.el4
  • nss RHEL 5 3.12.7-2.el5
  • nspr RHEL 4 4.8.6-1.el4
  • nspr RHEL 5 4.8.6-1.el5
  • nss-tools RHEL 4 3.12.7-1.el4
  • nss-tools RHEL 5 3.12.7-2.el5

red hat advisories RHSA-2010:0681

  • firefox-esr openSUSE Tumbleweed 128.5.1-1.1
  • MozillaFirefox openSUSE Tumbleweed 50.1.0-1.1
  • MozillaThunderbird openSUSE Tumbleweed 45.5.1-1.1

opensuse advisories openSUSE-SU-2024:14572-1openSUSE-SU-2024:10071-1openSUSE-SU-2024:10230-1

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-2010-3166 updated cvss 6.8

nsTextFrameUtils:: TransformText (MFSA 2010-53)

  • Red Hat Enterprise Linux (v. 5 server) nspr 4.8.6-1.el5, nss 3.12.7-2.el5, firefox 3.6.9-2.el5, nss-tools 3.12.7-2.el5, xulrunner 1.9.2.9-1.el5 Red Hat Enterprise Linux AS version 4 nspr 4.8.6-1.el4, nss 3.12.7-1.el4, firefox 3.6.9-1.el4, nss-tools 3.12.7-1.el4 Red Hat Enterprise Linux Desktop (v. 5 client) nspr 4.8.6-1.el5, nss 3.12.7-2.el5, firefox 3.6.9-2.el5, nss-tools 3.12.7-2.el5, xulrunner 1.9.2.9-1.el5 Red Hat Enterprise Linux Desktop version 4 nspr 4.8.6-1.el4, nss 3.12.7-1.el4, firefox 3.6.9-1.el4, nss-tools 3.12.7-1.el4 Red Hat Enterprise Linux Desktop Workstation (v. 5 client) nspr 4.8.6-1.el5, nss 3.12.7-2.el5, xulrunner 1.9.2.9-1.el5 Red Hat Enterprise Linux ES version 4 nspr 4.8.6-1.el4, nss 3.12.7-1.el4, firefox 3.6.9-1.el4, nss-tools 3.12.7-1.el4
    +1 more products
    Red Hat Enterprise Linux WS version 4 nspr 4.8.6-1.el4, nss 3.12.7-1.el4, firefox 3.6.9-1.el4, nss-tools 3.12.7-1.el4
    fixed: vendor fix RHSA-2010:0681
  • Red Hat Enterprise Linux 6 firefox
    not affected: vulnerable code not present

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

Exploit prediction

5.56% chance of exploitation in the next 30 days, higher than 92% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 9.3 AV:N/AC:M/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

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.