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01 Record

CVE-2015-7575

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

UnratedPUBLISHEDCNA: redhat
CNA base scoreUnratedNo CNA CVSS vector
View raw JSON

02 Description

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

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
2.90% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 86.8% of scored records. A rank, not a probability.
NVD base score
5.9 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD analysis status
Modified. NVD last modified this record on 2026-10-14.
Red Hat severity
Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2016-01-09 02:00Z10 YR AGO
Last updated
2026-10-14 21:33Z14 DAYS AGO
Reserved
2015-09-29
Assigning CNA
redhat
Record state
PUBLISHED
Severity
Not rated by the issuing CNA
CNA CVSS vector
Not published by the issuing CNA
Weaknesses
Data version
5.2
Document digest
698d6672d4176573faf6885fd97206e85da1969cec8cf8dcd4eeac1400024f1f

05 Affected products

VendorProductVersionsPlatforms
canonicalubuntu_linuxNot specified—
mozillafirefoxNot specified—
mozillanetwork_security_servicesNot specified—
opensuseleapNot specified—
opensuseopensuseNot specified—
redhatenterprise_linuxNot specified—
redhatjboss_enterprise_application_platformNot specified—
redhatjboss_enterprise_web_serverNot specified—
redhatnetwork_satelliteNot specified—
redhatrhel_extrasNot specified—
redhatrhel_extras_oracle_javaNot specified—

06 References

07 Fixed in

Debian 12

  • gnutls28
    Fixed in 3.3.15-1
  • nss
    Fixed in 2:3.21-1
  • openssl
    Fixed in 1.0.1f-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

  • gnutls28
    Fixed in 3.3.15-1
  • nss
    Fixed in 2:3.21-1
  • openssl
    Fixed in 1.0.1f-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

  • gnutls28
    Fixed in 3.3.15-1
  • nss
    Fixed in 2:3.21-1
  • openssl
    Fixed in 1.0.1f-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 14.04 LTS

  • firefox
    Fixed in 43.0.4+build3-0ubuntu0.14.04.1
  • gnutls26
    Fixed in 2.12.23-12ubuntu2.4
  • nss
    Fixed in 2:3.19.2.1-0ubuntu0.14.04.2
  • openjdk-6
    Fixed in 6b38-1.13.10-0ubuntu0.14.04.1
  • openjdk-7
    Fixed in 7u95-2.6.4-0ubuntu0.14.04.1
  • thunderbird
    Fixed in 1:38.6.0+build1-0ubuntu0.14.04.1

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 16.04 LTS

  • thunderbird
    Fixed in 1:38.6.0+build1-0ubuntu1

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.