Vulnerability record · CVE-2003-0791 · published 7 October 2003

CVE-2003-0791: Mozilla deserialization of untrusted data vulnerability

Mozilla · Mozilla

The Script.prototype.freeze/thaw functionality in Mozilla 1.4 and earlier allows attackers to execute native methods by modifying the string used as input to the script.thaw JavaScript function, which is then deserialized and executed.

9.8 CVSS 3.1 Critical EPSS 2.1% · top 18.8% CWE-502 · Deserialization of untrusted data

9.8CVSS 3.1 base score, v2 7.5

2.1%EPSS exploitation probability, 30 days

NoNot in CISA KEV

2Affected product versions listed by NVD

12References

16 Jun 2026Last modified by NVD

Description

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

Mozilla Mozilla SOpenserver Sco

References

Link	Tags
http://secunia.com/advisories/11103/	URL Repurposed
http://www.mandriva.com/security/advisories?name=MDKSA-2004:021	Broken Link
http://www.osvdb.org/8390	Broken LinkPatchVendor Advisory
http://www.securityfocus.com/advisories/6979	Broken LinkPatchThird Party AdvisoryVDB EntryVendor Advisory
http://www.securityfocus.com/bid/9322	Broken LinkPatchThird Party AdvisoryVDB EntryVendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=221526	Issue TrackingPatchVendor Advisory
http://secunia.com/advisories/11103/	URL Repurposed
http://www.mandriva.com/security/advisories?name=MDKSA-2004:021	Broken Link
http://www.osvdb.org/8390	Broken LinkPatchVendor Advisory
http://www.securityfocus.com/advisories/6979	Broken LinkPatchThird Party AdvisoryVDB EntryVendor Advisory
http://www.securityfocus.com/bid/9322	Broken LinkPatchThird Party AdvisoryVDB EntryVendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=221526	Issue TrackingPatchVendor Advisory

Track CVE-2003-0791 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2007-1794Mozilla vulnerabilityThe Javascript engine in Mozilla 1.7 and earlier on Sun Solaris 8, 9, and 10 might allow remote attackers to execute arbitrary code via vectors invol…EPSS 4.3%2 Apr 2007 10.0CVE-2005-3625Easy software products cups vulnerabilityXpdf, as used in products such as gpdf, kpdf, pdftohtml, poppler, teTeX, CUPS, libextractor, and others, allows attackers to cause a denial of servic…EPSS 3.8%31 Dec 2005 10.0CVE-2004-0902Mozilla vulnerabilityMultiple heap-based buffer overflows in Mozilla Firefox before the Preview Release, Mozilla before 1.7.3, and Thunderbird before 0.8 allow remote att…EPSS 10%27 Jan 2005 10.0CVE-2004-0903Mozilla vulnerabilityStack-based buffer overflow in the writeGroup function in nsVCardObj.cpp for Mozilla Firefox before the Preview Release, Mozilla before 1.7.3, and Th…EPSS 9.7%27 Jan 2005 10.0CVE-2004-0904Mozilla firefox vulnerabilityInteger overflow in the bitmap (BMP) decoder for Mozilla Firefox before the Preview Release, Mozilla before 1.7.3, and Thunderbird before 0.8 allow r…EPSS 8.0%31 Dec 2004 10.0CVE-2004-0722Mozilla vulnerabilityInteger overflow in the SOAPParameter object constructor in (1) Netscape version 7.0 and 7.1 and (2) Mozilla 1.6, and possibly earlier versions, allo…EPSS 13%18 Aug 2004 10.0CVE-2004-0757Mozilla firefox vulnerabilityHeap-based buffer overflow in the SendUidl in the POP3 capability for Mozilla before 1.7, Firefox before 0.9, and Thunderbird before 0.7, may allow r…EPSS 5.3%18 Aug 2004 10.0CVE-2004-0764Mozilla firefox vulnerabilityMozilla before 1.7, Firefox before 0.9, and Thunderbird before 0.7, allow remote web sites to hijack the user interface via the "chrome" flag and XML…EPSS 3.2%18 Aug 2004

Source: NIST National Vulnerability Database (record CVE-2003-0791), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.