CVE-2016-8635

mediumpriority · track · 25EPSS 0.020 · 81 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.99% (81st) EPSS

CVSS 4.3 · medium

Is it mine?

20 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-27

It was found that Diffie Hellman Client key exchange handling in NSS 3.21.x was vulnerable to small subgroup confinement attack. An attacker could use this flaw to recover private keys by confining the client DH key to small subgroup of the desired group.

cvss

Technical severity, 0–10. One row per scoring source.

5.9

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.04.3mediumAV:N/AC:M/Au:N/C:P/I:N/A:Nprimary · NVD / NIST USexploitability 8.6 · impact 2.9

v3.05.9mediumCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:Nprimary · NVD / NIST USexploitability 2.2 · impact 3.6

v3.05.3mediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:Nsecondary · ENISA EU

v3.05.3mediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:Nsecondary · secalert@redhat.com USexploitability 3.9 · impact 1.4

v3.05.4mediumCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-320USCWE-358US

affected products (20)

Products and version ranges known to be affected.

Mozilla nss≤ 3.21.xenisa_euvdEU
mozilla network security services3.21 → 3.21.4nvdUScpe:2.3:a:mozilla:network_security_services:*:*:*:*:*:*:*:*
redhat enterprise linux desktop= 5.0nvdUScpe:2.3:o:redhat:enterprise_linux_desktop:*:*:*:*:*:*:*:*
redhat enterprise linux desktop= 6.0nvdUScpe:2.3:o:redhat:enterprise_linux_desktop:*:*:*:*:*:*:*:*
redhat enterprise linux desktop= 7.0nvdUScpe:2.3:o:redhat:enterprise_linux_desktop:*:*:*:*:*:*:*:*
redhat enterprise linux server= 5.0nvdUScpe:2.3:o:redhat:enterprise_linux_server:*:*:*:*:*:*:*:*
redhat enterprise linux server= 6.0nvdUScpe:2.3:o:redhat:enterprise_linux_server:*:*:*:*:*:*:*:*
redhat enterprise linux server= 7.0nvdUScpe:2.3:o:redhat:enterprise_linux_server:*:*:*:*:*:*:*:*
redhat enterprise linux server aus= 7.3nvdUScpe:2.3:o:redhat:enterprise_linux_server_aus:*:*:*:*:*:*:*:*
redhat enterprise linux server aus= 7.4nvdUScpe:2.3:o:redhat:enterprise_linux_server_aus:*:*:*:*:*:*:*:*
redhat enterprise linux server aus= 7.6nvdUScpe:2.3:o:redhat:enterprise_linux_server_aus:*:*:*:*:*:*:*:*
redhat enterprise linux server eus= 7.3nvdUScpe:2.3:o:redhat:enterprise_linux_server_eus:*:*:*:*:*:*:*:*
redhat enterprise linux server eus= 7.4nvdUScpe:2.3:o:redhat:enterprise_linux_server_eus:*:*:*:*:*:*:*:*
redhat enterprise linux server eus= 7.5nvdUScpe:2.3:o:redhat:enterprise_linux_server_eus:*:*:*:*:*:*:*:*
redhat enterprise linux server eus= 7.6nvdUScpe:2.3:o:redhat:enterprise_linux_server_eus:*:*:*:*:*:*:*:*
redhat enterprise linux server tus= 7.3nvdUScpe:2.3:o:redhat:enterprise_linux_server_tus:*:*:*:*:*:*:*:*
redhat enterprise linux server tus= 7.6nvdUScpe:2.3:o:redhat:enterprise_linux_server_tus:*:*:*:*:*:*:*:*
redhat enterprise linux workstation= 5.0nvdUScpe:2.3:o:redhat:enterprise_linux_workstation:*:*:*:*:*:*:*:*
redhat enterprise linux workstation= 6.0nvdUScpe:2.3:o:redhat:enterprise_linux_workstation:*:*:*:*:*:*:*:*
redhat enterprise linux workstation= 7.0nvdUScpe:2.3:o:redhat:enterprise_linux_workstation:*:*:*:*:*:*:*:*

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2018-08-01modified 2026-06-17

references (12)

External citations — patches, advisories, analysis.

scry

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