Is CVE-2009-2409 being actively exploited?

CVE-2009-2409 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2009-2409?

CVE-2009-2409 has a CVSS 2.0 base score of 5.1 (MEDIUM).

CVE-2009-2409

MEDIUM · CVSS 5.1EPSS 4.3%EU EUVD

The Network Security Services (NSS) library before 3.12.3, as used in Firefox; GnuTLS before 2.6.4 and 2.7.4; OpenSSL 0.9.8 through 0.9.8k; and other products support MD2 with X.509 certificates, which might allow remote attackers to spoof certificates by using MD2 design flaws to generate a hash collision in less than brute-force time. NOTE: the scope of this issue is currently limited because the amount of computation required is still large.

Key facts

CVSS score: 5.1 (v2.0)
Severity: MEDIUM
CVSS vector: AV:N/AC:H/Au:N/C:P/I:P/A:P
Weakness (CWE): CWE-295
EPSS score: 4.3% (91th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2009-2405)
Published: July 30, 2009
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2009-2405 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.

View on the EU Vulnerability Database

Affected products

gnu / gnutls
mozilla / network security services
openssl / openssl

References

http://java.sun.com/j2se/1.5.0/ReleaseNotes.html(Patch)
http://java.sun.com/javase/6/webnotes/6u17.html(Release Notes)
http://lists.apple.com/archives/security-announce/2009/Nov/msg00000.html(Vendor Advisory)
http://secunia.com/advisories/36139(Vendor Advisory)
http://secunia.com/advisories/36157(Vendor Advisory)
http://secunia.com/advisories/36434(Vendor Advisory)
http://secunia.com/advisories/36669(Not Applicable)
http://secunia.com/advisories/36739(Not Applicable)
http://secunia.com/advisories/37386(Not Applicable)
http://secunia.com/advisories/42467(Not Applicable)
http://security.gentoo.org/glsa/glsa-200911-02.xml(Third Party Advisory)
http://security.gentoo.org/glsa/glsa-200912-01.xml(Third Party Advisory)
http://support.apple.com/kb/HT3937(Broken Link)
http://www.debian.org/security/2009/dsa-1874(Mailing List)
http://www.mandriva.com/security/advisories?name=MDVSA-2009:197(Not Applicable)
http://www.mandriva.com/security/advisories?name=MDVSA-2009:216(Not Applicable)
http://www.mandriva.com/security/advisories?name=MDVSA-2009:258(Not Applicable)
http://www.mandriva.com/security/advisories?name=MDVSA-2010:084(Not Applicable)
http://www.redhat.com/support/errata/RHSA-2009-1207.html(Third Party Advisory)
http://www.redhat.com/support/errata/RHSA-2009-1432.html(Third Party Advisory)
http://www.securityfocus.com/archive/1/515055/100/0/threaded(Broken Link)
http://www.securitytracker.com/id?1022631(Broken Link)
http://www.ubuntu.com/usn/usn-810-1(Third Party Advisory)
http://www.vmware.com/security/advisories/VMSA-2010-0019.html(Third Party Advisory)
http://www.vupen.com/english/advisories/2009/2085(Vendor Advisory)
http://www.vupen.com/english/advisories/2009/3184(Vendor Advisory)
http://www.vupen.com/english/advisories/2010/3126(Vendor Advisory)
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2009-2409(Third Party Advisory)
https://lists.balabit.com/pipermail/syslog-ng-announce/2011-January/000101.html(Third Party Advisory)
https://lists.balabit.com/pipermail/syslog-ng-announce/2011-January/000102.html(Third Party Advisory)
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10763(Broken Link)
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6631(Broken Link)
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7155(Broken Link)
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8594(Broken Link)
https://rhn.redhat.com/errata/RHSA-2010-0095.html(Third Party Advisory)
https://usn.ubuntu.com/810-2/(Broken Link)
https://www.debian.org/security/2009/dsa-1888(Mailing List, Third Party Advisory)

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

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