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Fencer Vulns
critical 9.3

CVE-2008-3837 json

Mozilla Firefox before 2.0.0.17 and 3.x before 3.0.2, and SeaMonkey before 1.1.12, allow user-assisted remote attackers to move a window du…

published 2008-09-24 18 y ago modified 2026-06-16 4 mo ago also EUVD-2008-3823

cvss
9.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.3%
EPSS 3.3% chance of exploitation in 30 days, percentile 88%
public exploits
0
none known

Summary

Mozilla Firefox before 2.0.0.17 and 3.x before 3.0.2, and SeaMonkey before 1.1.12, allow user-assisted remote attackers to move a window during a mouse click, and possibly force a file download or unspecified other drag-and-drop action, via a crafted onmousedown action that calls window.moveBy, a variant of CVE-2003-0823.

Patch / fix

  • mozilla firefox 2.0.0.17, 3.0.2
  • mozilla seamonkey 1.1.12
  • seamonkey RHEL 2.1 1.0.9-0.20.el2
  • seamonkey RHEL 3 1.0.9-0.24.el3
  • seamonkey RHEL 4 1.0.9-26.el4
  • devhelp RHEL 4 0.10-0.10.el4
  • seamonkey-nss RHEL 2.1 1.0.9-0.20.el2
  • seamonkey-nss RHEL 3 1.0.9-0.24.el3
  • seamonkey-chat RHEL 2.1 1.0.9-0.20.el2
  • seamonkey-chat RHEL 3 1.0.9-0.24.el3

red hat advisories RHSA-2008:0882RHSA-2008:0879

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-2008-3837 updated

mozilla: Forced mouse drag

  • Red Hat Desktop version 3 seamonkey 1.0.9-0.24.el3, seamonkey-nss 1.0.9-0.24.el3, seamonkey-chat 1.0.9-0.24.el3, seamonkey-mail 1.0.9-0.24.el3, seamonkey-nspr 1.0.9-0.24.el3, seamonkey-js-debugger 1.0.9-0.24.el3, +1 more
    fixed: vendor fix RHSA-2008:0882
  • Red Hat Enterprise Linux (v. 5 server) nss 3.12.1.1-1.el5, yelp 2.16.0-21.el5, devhelp 0.12-19.el5, firefox 3.0.2-3.el5, xulrunner 1.9.0.2-5.el5, nss-tools 3.12.1.1-1.el5, +1 more
    fixed: vendor fix RHSA-2008:0879
  • Red Hat Enterprise Linux AS (Advanced Server) version 2.1 seamonkey 1.0.9-0.20.el2, seamonkey-nss 1.0.9-0.20.el2, seamonkey-chat 1.0.9-0.20.el2, seamonkey-mail 1.0.9-0.20.el2, seamonkey-nspr 1.0.9-0.20.el2, seamonkey-js-debugger 1.0.9-0.20.el2, +1 more Red Hat Enterprise Linux AS version 3 seamonkey 1.0.9-0.24.el3, seamonkey-nss 1.0.9-0.24.el3, seamonkey-chat 1.0.9-0.24.el3, seamonkey-mail 1.0.9-0.24.el3, seamonkey-nspr 1.0.9-0.24.el3, seamonkey-js-debugger 1.0.9-0.24.el3, +1 more Red Hat Enterprise Linux AS version 4 firefox 3.0.2-3.el4, devhelp 0.10-0.10.el4, seamonkey 1.0.9-26.el4, seamonkey-chat 1.0.9-26.el4, seamonkey-mail 1.0.9-26.el4, seamonkey-js-debugger 1.0.9-26.el4, +1 more
    fixed: vendor fix RHSA-2008:0882
  • Red Hat Enterprise Linux Desktop (v. 5 client) nss 3.12.1.1-1.el5, yelp 2.16.0-21.el5, devhelp 0.12-19.el5, firefox 3.0.2-3.el5, xulrunner 1.9.0.2-5.el5, nss-tools 3.12.1.1-1.el5, +1 more
    fixed: vendor fix RHSA-2008:0879
  • Red Hat Enterprise Linux Desktop version 4 firefox 3.0.2-3.el4, devhelp 0.10-0.10.el4, seamonkey 1.0.9-26.el4, seamonkey-chat 1.0.9-26.el4, seamonkey-mail 1.0.9-26.el4, seamonkey-js-debugger 1.0.9-26.el4, +1 more
    fixed: vendor fix RHSA-2008:0882
  • Red Hat Enterprise Linux Desktop Workstation (v. 5 client) nss 3.12.1.1-1.el5, devhelp 0.12-19.el5, xulrunner 1.9.0.2-5.el5, nss-tools 3.12.1.1-1.el5, xulrunner-devel-unstable 1.9.0.2-5.el5
    fixed: vendor fix RHSA-2008:0879
  • Red Hat Enterprise Linux ES version 2.1 seamonkey 1.0.9-0.20.el2, seamonkey-nss 1.0.9-0.20.el2, seamonkey-chat 1.0.9-0.20.el2, seamonkey-mail 1.0.9-0.20.el2, seamonkey-nspr 1.0.9-0.20.el2, seamonkey-js-debugger 1.0.9-0.20.el2, +1 more Red Hat Enterprise Linux ES version 3 seamonkey 1.0.9-0.24.el3, seamonkey-nss 1.0.9-0.24.el3, seamonkey-chat 1.0.9-0.24.el3, seamonkey-mail 1.0.9-0.24.el3, seamonkey-nspr 1.0.9-0.24.el3, seamonkey-js-debugger 1.0.9-0.24.el3, +1 more Red Hat Enterprise Linux ES version 4 firefox 3.0.2-3.el4, devhelp 0.10-0.10.el4, seamonkey 1.0.9-26.el4, seamonkey-chat 1.0.9-26.el4, seamonkey-mail 1.0.9-26.el4, seamonkey-js-debugger 1.0.9-26.el4, +1 more Red Hat Enterprise Linux WS version 2.1 seamonkey 1.0.9-0.20.el2, seamonkey-nss 1.0.9-0.20.el2, seamonkey-chat 1.0.9-0.20.el2, seamonkey-mail 1.0.9-0.20.el2, seamonkey-nspr 1.0.9-0.20.el2, seamonkey-js-debugger 1.0.9-0.20.el2, +1 more Red Hat Enterprise Linux WS version 3 seamonkey 1.0.9-0.24.el3, seamonkey-nss 1.0.9-0.24.el3, seamonkey-chat 1.0.9-0.24.el3, seamonkey-mail 1.0.9-0.24.el3, seamonkey-nspr 1.0.9-0.24.el3, seamonkey-js-debugger 1.0.9-0.24.el3, +1 more Red Hat Enterprise Linux WS version 4 firefox 3.0.2-3.el4, devhelp 0.10-0.10.el4, seamonkey 1.0.9-26.el4, seamonkey-chat 1.0.9-26.el4, seamonkey-mail 1.0.9-26.el4, seamonkey-js-debugger 1.0.9-26.el4, +1 more
    +1 more products
    Red Hat Linux Advanced Workstation 2.1 seamonkey 1.0.9-0.20.el2, seamonkey-nss 1.0.9-0.20.el2, seamonkey-chat 1.0.9-0.20.el2, seamonkey-mail 1.0.9-0.20.el2, seamonkey-nspr 1.0.9-0.20.el2, seamonkey-js-debugger 1.0.9-0.20.el2, +1 more
    fixed: vendor fix RHSA-2008:0882

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

3.27% chance of exploitation in the next 30 days, higher than 88% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

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

References

Sources

Fencer Vulns 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.