Is CVE-2004-0079 being actively exploited?

CVE-2004-0079 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2004-0079?

CVE-2004-0079 has a CVSS 3.1 base score of 7.5 (HIGH).

CVE-2004-0079

HIGH · CVSS 7.5EPSS 9.5%EU EUVD

The do_change_cipher_spec function in OpenSSL 0.9.6c to 0.9.6k, and 0.9.7a to 0.9.7c, allows remote attackers to cause a denial of service (crash) via a crafted SSL/TLS handshake that triggers a null dereference.

Key facts

CVSS score: 7.5 (v3.1)
Severity: HIGH
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): CWE-476
EPSS score: 9.5% (95th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2004-0079)
Published: November 23, 2004
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2004-0079 in the EU Vulnerability Database. Last updated in EUVD on January 16, 2025.

View on the EU Vulnerability Database

Affected products

4d / webstar
4d / webstar
4d / webstar
4d / webstar
4d / webstar
4d / webstar
4d / webstar
4d / webstar
apple / mac os x
apple / mac os x server
avaya / converged communications server
avaya / intuity audix
avaya / intuity audix
avaya / intuity audix
avaya / intuity audix
avaya / s8300
avaya / s8300
avaya / s8500
avaya / s8500
avaya / s8700
avaya / s8700
avaya / sg200
avaya / sg200
avaya / sg203
avaya / sg203
avaya / sg208
avaya / sg208
avaya / sg5
avaya / sg5
avaya / sg5
avaya / vsu
avaya / vsu
avaya / vsu
avaya / vsu
avaya / vsu
avaya / vsu
avaya / vsu
avaya / vsu
bluecoat / cacheos ca sa
bluecoat / cacheos ca sa
bluecoat / proxysg
checkpoint / firewall-1
checkpoint / firewall-1
checkpoint / firewall-1
checkpoint / firewall-1
checkpoint / firewall-1
checkpoint / provider-1
checkpoint / provider-1
checkpoint / provider-1
checkpoint / provider-1

and 202 more…

Certified products that may be affected

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

Cisco Firewall Services Module (FWSM) Version 3.1.(3.17) for: Cisco Catalyst 6500 Switches and Cisco 7600 Series routers - Cisco Systems, Inc. - Common Criteria CCEVS-VR-0027-2007 - archived

References

ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-04:05.openssl.asc(Broken Link)
ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2004-005.txt.asc(Broken Link)
ftp://ftp.sco.com/pub/updates/OpenServer/SCOSA-2004.10/SCOSA-2004.10.txt(Broken Link)
http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000834(Broken Link)
http://docs.info.apple.com/article.html?artnum=61798(Broken Link)
http://fedoranews.org/updates/FEDORA-2004-095.shtml(Third Party Advisory)
http://lists.apple.com/archives/security-announce/2005//Aug/msg00001.html(Mailing List)
http://lists.apple.com/archives/security-announce/2005/Aug/msg00000.html(Mailing List)
http://lists.apple.com/mhonarc/security-announce/msg00045.html(Broken Link)
http://marc.info/?l=bugtraq&m=107953412903636&w=2(Mailing List)
http://marc.info/?l=bugtraq&m=108403806509920&w=2(Mailing List)
http://secunia.com/advisories/11139(Broken Link)
http://secunia.com/advisories/17381(Broken Link)
http://secunia.com/advisories/17398(Broken Link)
http://secunia.com/advisories/17401(Broken Link)
http://secunia.com/advisories/18247(Broken Link)
http://security.gentoo.org/glsa/glsa-200403-03.xml(Third Party Advisory)
http://sunsolve.sun.com/pub-cgi/retrieve.pl?doc=fsalert/57524(Broken Link)
http://support.avaya.com/elmodocs2/security/ASA-2005-239.htm(Third Party Advisory)
http://support.lexmark.com/index?page=content&id=TE88&locale=EN&userlocale=EN_US(Broken Link)
http://www.ciac.org/ciac/bulletins/o-101.shtml(Broken Link)
http://www.cisco.com/warp/public/707/cisco-sa-20040317-openssl.shtml(Broken Link)
http://www.debian.org/security/2004/dsa-465(Third Party Advisory)
http://www.kb.cert.org/vuls/id/288574(Third Party Advisory, US Government Resource)
http://www.linuxsecurity.com/advisories/engarde_advisory-4135.html(Broken Link)
http://www.mandriva.com/security/advisories?name=MDKSA-2004:023(Third Party Advisory)
http://www.novell.com/linux/security/advisories/2004_07_openssl.html(Broken Link)
http://www.openssl.org/news/secadv_20040317.txt(Third Party Advisory)
http://www.redhat.com/archives/fedora-announce-list/2005-October/msg00087.html(Mailing List)
http://www.redhat.com/support/errata/RHSA-2004-120.html(Broken Link)
http://www.redhat.com/support/errata/RHSA-2004-121.html(Broken Link)
http://www.redhat.com/support/errata/RHSA-2004-139.html(Broken Link)
http://www.redhat.com/support/errata/RHSA-2005-829.html(Broken Link)
http://www.redhat.com/support/errata/RHSA-2005-830.html(Broken Link)
http://www.securityfocus.com/bid/9899(Broken Link, Third Party Advisory, VDB Entry, Vendor Advisory)
http://www.slackware.org/security/viewer.php?l=slackware-security&y=2004&m=slackware-security.455961(Broken Link)
http://www.trustix.org/errata/2004/0012(Broken Link)
http://www.uniras.gov.uk/vuls/2004/224012/index.htm(Broken Link)
http://www.us-cert.gov/cas/techalerts/TA04-078A.html(Broken Link, Third Party Advisory, US Government Resource)
https://exchange.xforce.ibmcloud.com/vulnerabilities/15505(Third Party Advisory, VDB Entry)

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

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