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Fencer Vulns
medium 4.9

CVE-2008-5913 json

The Math.random function in the JavaScript implementation in Mozilla Firefox 3.5.x before 3.5.10 and 3.6.x before 3.6.4, and SeaMonkey befo…

published 2009-01-20 17 y ago modified 2026-06-16 4 mo ago also EUVD-2008-5883

cvss
4.9
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.1%
EPSS 1.1% chance of exploitation in 30 days, percentile 66%
public exploits
0
none known

Summary

The Math.random function in the JavaScript implementation in Mozilla Firefox 3.5.x before 3.5.10 and 3.6.x before 3.6.4, and SeaMonkey before 2.0.5, uses a random number generator that is seeded only once per browser session, which makes it easier for remote attackers to track a user, or trick a user into acting upon a spoofed pop-up message, by calculating the seed value, related to a "temporary footprint" and an "in-session phishing attack."

Patch / fix

  • firefox RHEL 5 3.6.4-8.el5
  • esc RHEL 5 1.1.0-12.el5
  • yelp RHEL 5 2.16.0-26.el5
  • totem RHEL 5 2.16.7-7.el5
  • devhelp RHEL 5 0.12-21.el5
  • xulrunner RHEL 5 1.9.2.4-10.el5
  • totem-mozplugin RHEL 5 2.16.7-7.el5
  • gnome-python2-extras RHEL 5 2.14.2-7.el5

red hat advisories RHSA-2010:0501RHSA-2010:0500

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

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

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-2008-5913 updated cvss 3.6

mozilla: in-session phishing attack

  • Red Hat Enterprise Linux 4 seamonkey
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux (v. 5 server) esc 1.1.0-12.el5, totem 2.16.7-7.el5, yelp 2.16.0-26.el5, devhelp 0.12-21.el5, firefox 3.6.4-8.el5, xulrunner 1.9.2.4-10.el5, +6 more
    fixed: vendor fix RHSA-2010:0501
  • Red Hat Enterprise Linux AS version 4 firefox 3.6.4-8.el4
    fixed: vendor fix RHSA-2010:0500
  • Red Hat Enterprise Linux Desktop (v. 5 client) esc 1.1.0-12.el5, totem 2.16.7-7.el5, yelp 2.16.0-26.el5, devhelp 0.12-21.el5, firefox 3.6.4-8.el5, xulrunner 1.9.2.4-10.el5, +6 more
    fixed: vendor fix RHSA-2010:0501
  • Red Hat Enterprise Linux Desktop version 4 firefox 3.6.4-8.el4
    fixed: vendor fix RHSA-2010:0500
  • Red Hat Enterprise Linux Desktop Workstation (v. 5 client) totem 2.16.7-7.el5, devhelp 0.12-21.el5, xulrunner 1.9.2.4-10.el5
    fixed: vendor fix RHSA-2010:0501
  • Red Hat Enterprise Linux ES version 4 firefox 3.6.4-8.el4 Red Hat Enterprise Linux WS version 4 firefox 3.6.4-8.el4
    fixed: vendor fix RHSA-2010:0500

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

1.14% chance of exploitation in the next 30 days, higher than 66% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 2.0 4.9 AV:N/AC:M/Au:S/C:P/I:P/A:N

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.