CVE-2016-4992

389 Directory Server in Red Hat Enterprise Linux Desktop 6 through 7, Red Hat Enterprise Linux...

7.5 HighFix available

389 Directory Server in Red Hat Enterprise Linux Desktop 6 through 7, Red Hat Enterprise Linux HPC Node 6 through 7, Red Hat Enterprise Linux Server 6 through 7, and Red Hat Enterprise Linux Workstation 6 through 7 allows remote attackers to infer the existence of RDN component objects.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: None
Availability: None

Exploit likelihood

2.41%Up 1.3 points since Feb 4, 2022

What each source reports

NVD Score used 7.5

Record: CVE-2016-4992
CVSS 3.0: 7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS 2.0: 5.0 MediumAV:N/AC:L/Au:N/C:P/I:N/A:N
Weakness: CWE-200
Updated: 2026-11-02

CVE List No score

Record: CVE-2016-4992
Updated: 2026-11-02

EUVDEUVD-2016-5958 No score

Record: EUVD-2016-5958
Updated: 2026-11-03

GitHub AdvisoriesGHSA-wm9r-q6g4-j33r 7.5

389 Directory Server in Red Hat Enterprise Linux Desktop 6 through 7, Red Hat Enterprise Linux...

Record: GHSA-wm9r-q6g4-j33r
CVSS 3.0: 7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness: CWE-200
Updated: 2026-11-02

OSV 7.5

Record: CVE-2016-4992
CVSS 3.0: 7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Updated: 2026-11-02

OSVDEBIAN-CVE-2016-4992 7.5

Record: DEBIAN-CVE-2016-4992
CVSS 3.0: 7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Updated: 2026-11-02

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OSVRHSA-2016:2594 6.8

Red Hat Security Advisory: 389-ds-base security, bug fix, and enhancement update

Record: RHSA-2016:2594
CVSS 3.0: 6.8 MediumCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N
Updated: 2026-11-02

OSVRHSA-2016:2765 6.8

Red Hat Security Advisory: 389-ds-base security, bug fix, and enhancement update

Record: RHSA-2016:2765
CVSS 3.0: 6.8 MediumCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N
Updated: 2026-11-02

OSVUBUNTU-CVE-2016-4992 7.5

Record: UBUNTU-CVE-2016-4992
CVSS 3.0: 7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Updated: 2026-11-02

OSVMGASA-2016-0350 No score

Updated 389-ds-base packages fix security vulnerability

A vulnerability in 389-ds-base was found that allows to bypass limitations for compare and read operations specified by Access Control Instructions. When having LDAP sub-tree with some existing objects and having BIND DN which have no privileges over objects inside the sub-tree, unprivileged user can send LDAP ADD operation specifying an object in (supposedly) inaccessible sub-tree. The returned error messages discloses the information when the queried object exists having the specified value. Attacker can use this flaw to guess values of RDN component by repeating the above process (CVE-2016-4992).

Record: MGASA-2016-0350
Updated: 2026-11-02

OSVopenSUSE-SU-2024:10593-1 No score

389-ds-2.0.10~git0.21dd2802c-1.1 on GA media

These are all security issues fixed in the 389-ds-2.0.10~git0.21dd2802c-1.1 package on the GA media of openSUSE Tumbleweed.

Record: openSUSE-SU-2024:10593-1
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`389-ds-base` Debian:12	before 1.3.5.13-1	1.3.5.13-1
`389-ds-base` Debian:13	before 1.3.5.13-1	1.3.5.13-1
`389-ds-base` Mageia:5	before 1.3.4.14-1.mga5	1.3.4.14-1.mga5
`389-ds-base` Red Hat:enterprise_linux:7::client	before 0:1.3.5.10-11.el7	0:1.3.5.10-11.el7
`389-ds-base-debuginfo` Red Hat:enterprise_linux:7::client	before 0:1.3.5.10-11.el7	0:1.3.5.10-11.el7
`389-ds-base-devel` Red Hat:enterprise_linux:7::client	before 0:1.3.5.10-11.el7	0:1.3.5.10-11.el7
`389-ds-base-libs` Red Hat:enterprise_linux:7::client	before 0:1.3.5.10-11.el7	0:1.3.5.10-11.el7
`389-ds-base-snmp` Red Hat:enterprise_linux:7::client	before 0:1.3.5.10-11.el7	0:1.3.5.10-11.el7
`389-ds-base` Red Hat:enterprise_linux:7::computenode	before 0:1.3.5.10-11.el7	0:1.3.5.10-11.el7
`389-ds-base-debuginfo` Red Hat:enterprise_linux:7::computenode	before 0:1.3.5.10-11.el7	0:1.3.5.10-11.el7

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Affected packages
Package	Affected	Fixed
`389-ds-base-devel` Red Hat:enterprise_linux:7::computenode	before 0:1.3.5.10-11.el7	0:1.3.5.10-11.el7
`389-ds-base-libs` Red Hat:enterprise_linux:7::computenode	before 0:1.3.5.10-11.el7	0:1.3.5.10-11.el7
`389-ds-base-snmp` Red Hat:enterprise_linux:7::computenode	before 0:1.3.5.10-11.el7	0:1.3.5.10-11.el7
`389-ds-base-debuginfo` Red Hat:enterprise_linux:7::server	before 0:1.3.5.10-11.el7	0:1.3.5.10-11.el7
`389-ds-base-devel` Red Hat:enterprise_linux:7::server	before 0:1.3.5.10-11.el7	0:1.3.5.10-11.el7
`389-ds-base-snmp` Red Hat:enterprise_linux:7::server	before 0:1.3.5.10-11.el7	0:1.3.5.10-11.el7
`389-ds-base` Red Hat:enterprise_linux:7::server	before 0:1.3.5.10-11.el7	0:1.3.5.10-11.el7
`389-ds-base-libs` Red Hat:enterprise_linux:7::server	before 0:1.3.5.10-11.el7	0:1.3.5.10-11.el7
`389-ds-base-debuginfo` Red Hat:enterprise_linux:7::workstation	before 0:1.3.5.10-11.el7	0:1.3.5.10-11.el7
`389-ds-base-devel` Red Hat:enterprise_linux:7::workstation	before 0:1.3.5.10-11.el7	0:1.3.5.10-11.el7
`389-ds-base-snmp` Red Hat:enterprise_linux:7::workstation	before 0:1.3.5.10-11.el7	0:1.3.5.10-11.el7
`389-ds-base` Red Hat:enterprise_linux:7::workstation	before 0:1.3.5.10-11.el7	0:1.3.5.10-11.el7
`389-ds-base-libs` Red Hat:enterprise_linux:7::workstation	before 0:1.3.5.10-11.el7	0:1.3.5.10-11.el7
`389-ds-base` Red Hat:enterprise_linux:6::client	before 0:1.2.11.15-84.el6_8	0:1.2.11.15-84.el6_8
`389-ds-base-debuginfo` Red Hat:enterprise_linux:6::client	before 0:1.2.11.15-84.el6_8	0:1.2.11.15-84.el6_8
`389-ds-base-devel` Red Hat:enterprise_linux:6::client	before 0:1.2.11.15-84.el6_8	0:1.2.11.15-84.el6_8
`389-ds-base-libs` Red Hat:enterprise_linux:6::client	before 0:1.2.11.15-84.el6_8	0:1.2.11.15-84.el6_8
`389-ds-base` Red Hat:enterprise_linux:6::computenode	before 0:1.2.11.15-84.el6_8	0:1.2.11.15-84.el6_8
`389-ds-base-debuginfo` Red Hat:enterprise_linux:6::computenode	before 0:1.2.11.15-84.el6_8	0:1.2.11.15-84.el6_8
`389-ds-base-devel` Red Hat:enterprise_linux:6::computenode	before 0:1.2.11.15-84.el6_8	0:1.2.11.15-84.el6_8
`389-ds-base-libs` Red Hat:enterprise_linux:6::computenode	before 0:1.2.11.15-84.el6_8	0:1.2.11.15-84.el6_8
`389-ds-base` Red Hat:enterprise_linux:6::server	before 0:1.2.11.15-84.el6_8	0:1.2.11.15-84.el6_8
`389-ds-base-debuginfo` Red Hat:enterprise_linux:6::server	before 0:1.2.11.15-84.el6_8	0:1.2.11.15-84.el6_8
`389-ds-base-libs` Red Hat:enterprise_linux:6::server	before 0:1.2.11.15-84.el6_8	0:1.2.11.15-84.el6_8
`389-ds-base-devel` Red Hat:enterprise_linux:6::server	before 0:1.2.11.15-84.el6_8	0:1.2.11.15-84.el6_8
`389-ds-base` Red Hat:enterprise_linux:6::workstation	before 0:1.2.11.15-84.el6_8	0:1.2.11.15-84.el6_8
`389-ds-base-debuginfo` Red Hat:enterprise_linux:6::workstation	before 0:1.2.11.15-84.el6_8	0:1.2.11.15-84.el6_8
`389-ds-base-libs` Red Hat:enterprise_linux:6::workstation	before 0:1.2.11.15-84.el6_8	0:1.2.11.15-84.el6_8
`389-ds-base-devel` Red Hat:enterprise_linux:6::workstation	before 0:1.2.11.15-84.el6_8	0:1.2.11.15-84.el6_8
`389-ds-base` Ubuntu:Pro:16.04:LTS	All versions, plus listed versions 1.3.3.12-1build11.3.3.13-11.3.4.5-21.3.4.8-11.3.4.8-3 Show 4 moreShow less 1.3.4.8-3ubuntu11.3.4.8-41.3.4.9-11.3.4.9-1ubuntu0.1~esm1	None known
`389-ds-base` Ubuntu:26.10	All versions, plus listed versions 3.1.2+vendor1-23.1.2+vendor1-2build13.3.1-3	None known
`389-ds-base` Ubuntu:26.04:LTS	All versions, plus listed versions 3.1.2+dfsg1-13.1.2+vendor1-2	None known
`389-ds` openSUSE:Tumbleweed	before 2.0.10~git0.21dd2802c-1.1	2.0.10~git0.21dd2802c-1.1

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2016-4992 is a high vulnerability (CVSS 7.5) in Redhat Enterprise Linux Desktop, published October 21, 2016. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.41%, the 84th percentile. Fixed in 389-ds-base 1.3.5.13-1.

References

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