The Math.random function in the JavaScript implementation in Mozilla Firefox 3.5.10 through 3.5.11, 3.6.4 through 3.6.8, and 4.0 Beta1 uses a random number generator that is seeded only once per document object, 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." NOTE: this vulnerability exists because of an incorrect fix for CVE-2008-5913.
CVE-2010-3171
- No confirmed exploitation signals yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- —
- EG Score
- 0.0(none)
- EPSS
- 90.3%
- KEV
- Not listed
Published
September 15, 2010
Last Modified
April 29, 2026
References (16)
- cve@mitrehttp://archives.neohapsis.com/archives/bugtraq/2010-09/0117.html
- cve@mitrehttp://blogs.sun.com/security/entry/multiple_vulnerabilities_in_mozilla_firefox
- cve@mitrehttp://secunia.com/advisories/42867
- cve@mitrehttp://www.securityfocus.com/bid/43222
- cve@mitrehttp://www.trusteer.com/sites/default/files/Cross_domain_Math_Random_leakage_in_FF_3.6.4-3.6.8.pdf
- cve@mitrehttp://www.vupen.com/english/advisories/2011/0061
- cve@mitrehttps://bugzilla.mozilla.org/show_bug.cgi?id=577512
- cve@mitrehttps://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7370
- af854a3a-2127-422b-91ae-364da2661108http://archives.neohapsis.com/archives/bugtraq/2010-09/0117.html
- af854a3a-2127-422b-91ae-364da2661108http://blogs.sun.com/security/entry/multiple_vulnerabilities_in_mozilla_firefox
- af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/42867
- af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/43222
- af854a3a-2127-422b-91ae-364da2661108http://www.trusteer.com/sites/default/files/Cross_domain_Math_Random_leakage_in_FF_3.6.4-3.6.8.pdf
- af854a3a-2127-422b-91ae-364da2661108http://www.vupen.com/english/advisories/2011/0061
- af854a3a-2127-422b-91ae-364da2661108https://bugzilla.mozilla.org/show_bug.cgi?id=577512
Data Freshness Timeline
(refreshed 6× in last 7d / 39× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-06 02:19 UTCEPSS rescore
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- 2026-06-17 17:49 UTCEPSS rescore
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- 2026-05-31 22:28 UTCEPSS rescore
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- 2026-05-29 13:40 UTCEPSS rescore
- 2026-05-29 10:20 UTCEG score recompute
- 2026-05-29 10:20 UTCGHSA enrichment
- 2026-05-28 13:42 UTCEPSS rescore
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- 2026-05-27 13:38 UTCEPSS rescore
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- 2026-05-26 13:41 UTCEPSS rescore
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- 2026-05-24 16:43 UTCEPSS rescore
- 2026-05-22 21:15 UTCEPSS rescore
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- 2026-05-21 22:39 UTCEPSS rescore
- 2026-05-20 22:37 UTCEPSS rescore
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- 2026-05-20 11:21 UTCEPSS rescore
- 2026-05-20 11:21 UTCEPSS rescore
- 2026-05-18 21:29 UTCEPSS rescore
- 2026-05-18 21:29 UTCEPSS rescore
Publicly available exploits
(1 reference)Working exploit code is in the public domain (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
- Exploit-DBEDB-34621✓ verifiedFirst seen Sep 14, 2010
Mozilla Firefox 3.6.8 - 'Math.random()' Cross Domain Information Disclosure
Open source ↗
Frequently asked(4)
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