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Fencer Intel
high 7.5

CVE-2016-3099 json

mod_ns in Red Hat Enterprise Linux Desktop 7, Red Hat Enterprise Linux HPC Node 7, Red Hat Enterprise Linux Server 7, and Red Hat Enterpris…

published 2017-06-08 9 y ago modified 2026-06-17 4 mo ago also EUVD-2016-4154

cvss
7.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.8%
EPSS 1.8% chance of exploitation in 30 days, percentile 78%
public exploits
0
none known

Summary

mod_ns in Red Hat Enterprise Linux Desktop 7, Red Hat Enterprise Linux HPC Node 7, Red Hat Enterprise Linux Server 7, and Red Hat Enterprise Linux Workstation 7 allows remote attackers to force the use of ciphers that were not intended to be enabled.

Patch / fix

  • mod_nss RHEL 7 1.0.14-7.el7

red hat advisories RHSA-2016:2602

  • apache2-mod_nss SLES for SAP 12 SP1, SLES 12 SP1 1.0.14-18.3
  • apache2-mod_nss SLES for SAP 12, SLES 12-LTSS 1.0.14-10.14.3

suse advisories SUSE-SU-2016:2396-1SUSE-SU-2016:2285-1

  • apache2-mod_nss openSUSE Tumbleweed 1.0.14-4.1

opensuse advisories openSUSE-SU-2024:10311-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2016-3099 updated cvss 1.9

mod_nss: Invalid handling of +CIPHER operator

  • Red Hat Certificate System 8 mod_nss Red Hat Enterprise Linux 5 mod_nss Red Hat Enterprise Linux 6 mod_nss
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux Client Optional (v. 7) mod_nss 1.0.14-7.el7 Red Hat Enterprise Linux ComputeNode Optional (v. 7) mod_nss 1.0.14-7.el7 Red Hat Enterprise Linux Server (v. 7) mod_nss 1.0.14-7.el7 Red Hat Enterprise Linux Workstation (v. 7) mod_nss 1.0.14-7.el7
    fixed: vendor fix RHSA-2016:2602

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.79% chance of exploitation in the next 30 days, higher than 78% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:P/A:N

Classification

Weakness
  • CWE-327 Use of a Broken or Risky Cryptographic Algorithm

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.