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CVE-2008-5913

15
FAUCET Score

CVE-2008-5913 describes a weakness in the Math.random function within JavaScript implementations of Mozilla Firefox and SeaMonkey, where the random number generator is seeded only once per browser session. This vulnerability, with a CVSS score of 4.9, allows remote attackers to potentially track users or facilitate in-session phishing attacks by calculating the predictable seed value. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
3.5CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:3.5:*:*:*:*:*:*:*
3.5.1CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:3.5.1:*:*:*:*:*:*:*
3.5.2CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:3.5.2:*:*:*:*:*:*:*
3.5.3CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:3.5.3:*:*:*:*:*:*:*
3.5.4CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:3.5.4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.9MEDIUM

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
SINGLE
Exploitability Score
6.8
Impact Score
4.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.14%
Probability of exploitation in next 30 days
EPSS Percentile
63.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0114 is in the 60th percentile among its peer group of 1,428 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (9)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: firefox-0:3.6.4-8.el4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: devhelp-0:0.12-21.el5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: esc-0:1.1.0-12.el5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: firefox-0:3.6.4-8.el5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: gnome-python2-extras-0:2.14.2-7.el5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: totem-0:2.16.7-7.el5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: xulrunner-0:1.9.2.4-10.el5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: yelp-0:2.16.0-26.el5
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: seamonkey

Vendor Advisories (1)

redhatCVE-2008-5913Low

mozilla: in-session phishing attack

Jan 13, 2009

References

arstechnica.com / news.ars/post/20090113-new-method-of-phishmongering-could-fool-experienced-users.html
lists.fedoraproject.org / pipermail/package-announce/2010-June/043369.html
lists.fedoraproject.org / pipermail/package-announce/2010-June/043405.html
lists.opensuse.org / opensuse-security-announce/2010-07/msg00005.html
bugzilla.mozilla.org / show_bug.cgi
secunia.com / advisories/40326
secunia.com / advisories/40401
secunia.com / advisories/40481
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11139
support.avaya.com / css/P8/documents/100091069
ubuntu.com / usn/usn-930-1
darkreading.com / security/attacks/showArticle.jhtml
infoworld.com / article/09/01/13/Browser_bug_could_allow_phishing_without_email_1.html
mandriva.com / security/advisories
mozilla.org / security/announce/2010/mfsa2010-33.html
redhat.com / support/errata/RHSA-2010-0500.html
redhat.com / support/errata/RHSA-2010-0501.html
securityfocus.com / bid/33276
trusteer.com / files/In-session-phishing-advisory-2.pdf
ubuntu.com / usn/usn-930-2
vupen.com / english/advisories/2010/1551
vupen.com / english/advisories/2010/1557
vupen.com / english/advisories/2010/1592
vupen.com / english/advisories/2010/1640
vupen.com / english/advisories/2010/1773