Is CVE-2009-1837 being actively exploited?

CVE-2009-1837 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2009-1837?

CVE-2009-1837 has a CVSS 3.1 base score of 7.5 (HIGH).

CVE-2009-1837

HIGH · CVSS 7.5EPSS 4.3%EU EUVD

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.

Key facts

CVSS score: 7.5 (v3.1)
Severity: HIGH
CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-362
EPSS score: 4.3% (91th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2009-1832)
Published: June 12, 2009
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2009-1832 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.

View on the EU Vulnerability Database

Affected products

debian / debian linux
fedoraproject / fedora
fedoraproject / fedora
mozilla / firefox
redhat / enterprise linux
redhat / enterprise linux
redhat / enterprise linux desktop
redhat / enterprise linux desktop
redhat / enterprise linux eus
redhat / enterprise linux eus
redhat / enterprise linux server
redhat / enterprise linux server
redhat / enterprise linux server aus
redhat / enterprise linux workstation
redhat / enterprise linux workstation

Certified products that may be affected

14 FIPS 140 or Common Criteria certified products, from automated matching by sec-certs.org.

Red Hat Enterprise Linux Kernel Crypto API Cryptographic Module v4.0 with CPACF - Red Hat®, Inc. - FIPS 140 2798 - historical
Red Hat Enterprise Linux Kernel Crypto API Cryptographic Module v4.0 - Red Hat®, Inc. - FIPS 140 2742 - historical
Red Hat Enterprise Linux Libreswan Cryptographic Module v4.0 - Red Hat®, Inc. - FIPS 140 2721 - historical
Red Hat Enterprise Linux NSS Cryptographic Module v4.0 - Red Hat®, Inc. - FIPS 140 2711 - historical
Red Hat Enterprise Linux libgcrypt Cryptographic Module v4.0 [1] and Red Hat Enterprise Linux libgcrypt Cryptographic Module v5.0 [2] - Red Hat®, Inc. - FIPS 140 2657 - historical

See all 14 in the Security Certifications Explorer.

References

http://secunia.com/advisories/34241(Broken Link, Vendor Advisory)
http://secunia.com/advisories/35331(Broken Link, Vendor Advisory)
http://secunia.com/advisories/35415(Broken Link)
http://secunia.com/advisories/35431(Broken Link, Vendor Advisory)
http://secunia.com/advisories/35468(Broken 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.372468(Broken Link)
http://sunsolve.sun.com/search/document.do?assetkey=1-66-264308-1(Broken Link)
http://www.debian.org/security/2009/dsa-1820(Mailing List, Third Party Advisory)
http://www.mozilla.org/security/announce/2009/mfsa2009-28.html(Vendor Advisory)
http://www.securityfocus.com/archive/1/504260/100/0/threaded(Broken Link, Third Party Advisory, VDB Entry)
http://www.securityfocus.com/bid/35326(Broken Link, Third Party Advisory, VDB Entry)
http://www.securityfocus.com/bid/35360(Broken Link, Third Party Advisory, VDB Entry)
http://www.securitytracker.com/id?1022386(Broken Link, Third Party Advisory, VDB Entry)
http://www.vupen.com/english/advisories/2009/1572(Broken Link, Vendor Advisory)
https://bugzilla.mozilla.org/show_bug.cgi?id=486269(Exploit, Issue Tracking)
https://bugzilla.redhat.com/show_bug.cgi?id=503579(Issue Tracking)
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10628(Broken Link)
https://rhn.redhat.com/errata/RHSA-2009-1095.html(Third Party Advisory)
https://www.redhat.com/archives/fedora-package-announce/2009-June/msg00574.html(Mailing List)
https://www.redhat.com/archives/fedora-package-announce/2009-June/msg00657.html(Mailing List)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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