CVE-2009-1837

Name: CVE-2009-1837
Creator: NVD / NIST
Published: 2009-06-12T21:30:00.36+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 4.33%

Last modified Jun 16, 2026

CVE-2009-1837 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Race condition in the NPObjWrapper_NewResolve function in modules/plugin/base/src/nsJSNPRuntime.cpp in xul.dll in Mozilla Firefox 3 before 3.0.11 might allow remote attackers to execute arbitrary code via a page transition during Java applet loading, related to a use-after-free vulnerability for memory associated with a destroyed Java object.. EPSS estimates a 4.33% chance of exploitation in the next 30 days.

Description

Race condition in the NPObjWrapper_NewResolve function in modules/plugin/base/src/nsJSNPRuntime.cpp in xul.dll in Mozilla Firefox 3 before 3.0.11 might allow remote attackers to execute arbitrary code via a page transition during Java applet loading, related to a use-after-free vulnerability for memory associated with a destroyed Java object.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

4.33%

90.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Mozilla	Firefox	>= 3.0, < 3.0.11
Debian	Debian Linux	5.0
Fedoraproject	Fedora	9
Fedoraproject	Fedora	10
Redhat	Enterprise Linux	4.0
Redhat	Enterprise Linux	5.0
Redhat	Enterprise Linux Desktop	4.0
Redhat	Enterprise Linux Desktop	5.0
Redhat	Enterprise Linux Eus	4.8
Redhat	Enterprise Linux Eus	5.3
Redhat	Enterprise Linux Server	4.0
Redhat	Enterprise Linux Server	5.0
Redhat	Enterprise Linux Server Aus	5.3
Redhat	Enterprise Linux Workstation	4.0
Redhat	Enterprise Linux Workstation	5.0

References

http://secunia.com/advisories/34241Broken Link, Vendor Advisory
http://secunia.com/advisories/35331Broken Link, Vendor Advisory
http://secunia.com/advisories/35415Broken Link
http://secunia.com/advisories/35431Broken Link, Vendor Advisory
http://secunia.com/advisories/35468Broken Link
http://secunia.com/secunia_research/2009-19/Broken Link, Vendor Advisory
http://slackware.com/security/viewer.php?l=slackware-security&y=2009&m=slackware-security.372468Broken Link
http://sunsolve.sun.com/search/document.do?assetkey=1-66-264308-1Broken Link
http://www.debian.org/security/2009/dsa-1820Mailing List, Third Party Advisory
http://www.mozilla.org/security/announce/2009/mfsa2009-28.htmlVendor Advisory
http://www.securityfocus.com/archive/1/504260/100/0/threadedBroken Link, Third Party Advisory, VDB Entry
http://www.securityfocus.com/bid/35326Broken Link, Third Party Advisory, VDB Entry
http://www.securityfocus.com/bid/35360Broken Link, Third Party Advisory, VDB Entry
http://www.securitytracker.com/id?1022386Broken Link, Third Party Advisory, VDB Entry
http://www.vupen.com/english/advisories/2009/1572Broken Link, Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=486269Exploit, Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=503579Issue Tracking
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10628Broken Link
https://rhn.redhat.com/errata/RHSA-2009-1095.htmlThird Party Advisory
https://www.redhat.com/archives/fedora-package-announce/2009-June/msg00574.htmlMailing List
https://www.redhat.com/archives/fedora-package-announce/2009-June/msg00657.htmlMailing List
http://secunia.com/advisories/34241Broken Link, Vendor Advisory
http://secunia.com/advisories/35331Broken Link, Vendor Advisory
http://secunia.com/advisories/35415Broken Link
http://secunia.com/advisories/35431Broken Link, Vendor Advisory
http://secunia.com/advisories/35468Broken Link
http://secunia.com/secunia_research/2009-19/Broken Link, Vendor Advisory
http://slackware.com/security/viewer.php?l=slackware-security&y=2009&m=slackware-security.372468Broken Link
http://sunsolve.sun.com/search/document.do?assetkey=1-66-264308-1Broken Link
http://www.debian.org/security/2009/dsa-1820Mailing List, Third Party Advisory
http://www.mozilla.org/security/announce/2009/mfsa2009-28.htmlVendor Advisory
http://www.securityfocus.com/archive/1/504260/100/0/threadedBroken Link, Third Party Advisory, VDB Entry
http://www.securityfocus.com/bid/35326Broken Link, Third Party Advisory, VDB Entry
http://www.securityfocus.com/bid/35360Broken Link, Third Party Advisory, VDB Entry
http://www.securitytracker.com/id?1022386Broken Link, Third Party Advisory, VDB Entry
http://www.vupen.com/english/advisories/2009/1572Broken Link, Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=486269Exploit, Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=503579Issue Tracking
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10628Broken Link
https://rhn.redhat.com/errata/RHSA-2009-1095.htmlThird Party Advisory
https://www.redhat.com/archives/fedora-package-announce/2009-June/msg00574.htmlMailing List
https://www.redhat.com/archives/fedora-package-announce/2009-June/msg00657.htmlMailing List

Timeline

Published: Jun 12, 2009
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2009-1837?

How severe is CVE-2009-1837?

CVE-2009-1837 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 4.33% probability of exploitation in the next 30 days.

How do I fix CVE-2009-1837?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2009-1837?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST