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Medium 5.9Published Jan 9, 2016
CVE-2015-7575Mozilla Network Security Services (NSS) before 3.20.2, as used in Mozilla Firefox before 43.0.2 and Firefox ESR 38.x before 38.5.2, does not reject MD5 signatures in Server Key Exchange messages in T…
Updated under an hour ago ()
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It affects mozilla network_security_services and 4 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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Mozilla Network Security Services (NSS) before 3.20.2, as used in Mozilla Firefox before 43.0.2 and Firefox ESR 38.x before 38.5.2, does not reject MD5 signatures in Server Key Exchange messages in TLS 1.2 Handshake Protocol traffic, which makes it easier for man-in-the-middle attackers to spoof servers by triggering a collision.
- CVSS
- 5.9 MEDIUM (v3.0, NVD)CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- redhat
- NVD analysis
- Modified
- Record last updated
- Oct 14, 2026
- First seen by InfoSec Signals
- Oct 14, 2026
Affected products
mozilla network_security_services mozilla:network_security_services | through 3.20.1 | NVD |
opensuse leap opensuse:leap | 42.1 | NVD |
opensuse opensuse opensuse:opensuse | 13.1; 13.2 | NVD |
mozilla firefox mozilla:firefox | 38.0; 38.0.1; 38.0.5; 38.1.0; 38.1.1; 38.2.0; 38.2.1; 38.3.0; and 4 more ranges | NVD |
canonical ubuntu_linux canonical:ubuntu_linux | 14.04; 15.04; 15.10 | NVD |
References
- http://www.debian.org/security/2016/dsa-3688vendor-advisory, x-refsource-debian
- http://www.debian.org/security/2016/dsa-3457vendor-advisory, x-refsource-debian
- http://www.debian.org/security/2016/dsa-3491vendor-advisory, x-refsource-debian
- http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00047.htmlvendor-advisory, x-refsource-suse
- http://www.securitytracker.com/id/1036467vdb-entry, x-refsource-sectrack
- https://security.gentoo.org/glsa/201701-46vendor-advisory, x-refsource-gentoo
- http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00048.htmlvendor-advisory, x-refsource-suse
- http://lists.opensuse.org/opensuse-updates/2016-01/msg00058.htmlvendor-advisory, x-refsource-suse
- http://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.htmlx-refsource-confirm
- http://www.ubuntu.com/usn/USN-2884-1vendor-advisory, x-refsource-ubuntu
- http://www.securityfocus.com/bid/79684vdb-entry, x-refsource-bid
- http://www.debian.org/security/2016/dsa-3465vendor-advisory, x-refsource-debian
- https://developer.mozilla.org/docs/Mozilla/Projects/NSS/NSS_3.20.2_release_notesx-refsource-confirm
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.htmlx-refsource-confirm
- http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.htmlx-refsource-confirm
- https://access.redhat.com/errata/RHSA-2016:1430vendor-advisory, x-refsource-redhat
- https://bugzilla.mozilla.org/show_bug.cgi?id=1158489x-refsource-confirm
- http://rhn.redhat.com/errata/RHSA-2016-0049.htmlvendor-advisory, x-refsource-redhat
- http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.htmlx-refsource-confirm
- http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00045.htmlvendor-advisory, x-refsource-suse
- http://lists.opensuse.org/opensuse-updates/2016-02/msg00008.htmlvendor-advisory, x-refsource-suse, third-party-advisory
- http://www.debian.org/security/2016/dsa-3437vendor-advisory, x-refsource-debian
- http://rhn.redhat.com/errata/RHSA-2016-0053.htmlvendor-advisory, x-refsource-redhat
- http://www.ubuntu.com/usn/USN-2904-1vendor-advisory, x-refsource-ubuntu
- http://lists.opensuse.org/opensuse-updates/2015-12/msg00139.htmlvendor-advisory, x-refsource-suse
- http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00038.html
- http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00041.html
- http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00042.html
- http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00043.html
- http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00044.html
- http://lists.opensuse.org/opensuse-updates/2016-01/msg00005.html
- http://lists.opensuse.org/opensuse-updates/2016-01/msg00059.html
- http://lists.opensuse.org/opensuse-updates/2016-02/msg00007.htmlthird-party-advisory
- http://lists.opensuse.org/opensuse-updates/2016-02/msg00101.html
- http://lists.opensuse.org/opensuse-updates/2016-02/msg00166.html
- http://rhn.redhat.com/errata/RHSA-2016-0050.html
- http://rhn.redhat.com/errata/RHSA-2016-0054.html
- http://rhn.redhat.com/errata/RHSA-2016-0055.html
- http://rhn.redhat.com/errata/RHSA-2016-0056.html
- http://www.debian.org/security/2016/dsa-3436
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