`CVE-2016-2183`

Affected software	6 products, listed below
Severity	7.5 High CVSS 3.1 3 scores
Weakness	Information exposure (CWE-200)
Published	1 Sep 2016
Updated	17 Jun 2026

Description

The DES and Triple DES ciphers, as used in the TLS, SSH, and IPSec protocols and other protocols and products, have a birthday bound of approximately four billion blocks, which makes it easier for remote attackers to obtain cleartext data via a birthday attack against a long-duration encrypted session, as demonstrated by an HTTPS session using Triple DES in CBC mode, aka a "Sweet32" attack.

Exploitation status

Proof of concept only

A proof of concept exists, but no reviewed exploit catalogue lists this CVE.

CISA KEV not listed
VulnCheck KEV not listed
CISA Vulnrichment exploitation: poc CISA recorded that an exploit has been demonstrated. Automatable: yes, technical impact: partial.
Indexed PoC 1 indexed, none at 5+ stars
EPSS 95% chance in 30 days A model's forecast, not a report of exploitation. Higher than 99.9% of all scored CVEs.

1 of these are GitHub repositories with fewer than 5 stars. They are listed for reference and don't count toward the exploitation status above.

Index	Artifact	Stars	First seen
GitHub PoC	Simplified Version of Cryptography Attack based on Birthday Paradox: Sweet32 (CVE-2016-2183)		2025-12-13

Index

Artifact

Stars

First seen

GitHub PoC

Simplified Version of Cryptography Attack based on Birthday Paradox: Sweet32 (CVE-2016-2183)

2025-12-13

Waratek protection

Outside Waratek scope

A Java vulnerability, but not one Waratek protects. It affects only Java on a user's desktop (applets, Web Start, JavaFX, the installer), sits in a product the Waratek agent can't be installed into, or is in a package we don't expect in business applications. The decision below says which.

Protection none
Action not pursued none
Review human Researcher
Record active

Decided by	Manual classification of this CVE in the legacy dataset
Finding	A manual classification set this CVE's status to Outside Waratek scope, but the CVE names a tracked product.

Decided by

Manual classification of this CVE in the legacy dataset

Finding

A manual classification set this CVE's status to Outside Waratek scope, but the CVE names a tracked product.

CVSS

7.5 HIGH v3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N 3 metrics

We show the highest score from the newest CVSS version. Scores from different versions can't be compared, and the first score listed is sometimes a 0.0 placeholder.

Version Score Band Vector Assigner Type

CVSS 3.1 7.5 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N NVD Primary published

CVSS 3.1 7.5 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CISA-ADP Secondary

CVSS 2.0 5.0 none AV:N/AC:L/Au:N/C:P/I:N/A:N NVD Primary

Version	Score	Band	Vector	Assigner	Type
CVSS 3.1	7.5	HIGH	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N`	NVD	Primary	published
CVSS 3.1	7.5	HIGH	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N`	CISA-ADP	Secondary
CVSS 2.0	5.0	none	`AV:N/AC:L/Au:N/C:P/I:N/A:N`	NVD	Primary

Affected software and releases

Oracle advisories

Advisory	Type	Quarter	Products Oracle names in its risk matrix
Oracle Critical Patch Update October 2021 ↗	CPU	2021-Q4	Oracle Siebel CRM / EAI, SWSE (OpenSSL) (21.9 and prior)
Oracle Critical Patch Update October 2017 ↗	CPU	2017-Q4	Oracle Fusion Middleware / OSSL Module (11.1.1.7.0, 11.1.1.9.0, 12.1.3.0.0, 12.2.1.1.0, 12.2.1.2.0)
Oracle Critical Patch Update July 2017 ↗	CPU	2017-Q3	Oracle Database Server / Real Application Clusters (11.2.0.4, 12.1.0.2)
Oracle Critical Patch Update January 2017 ↗	CPU	2017-Q1	Oracle Java SE / Java SE, Java SE Embedded (Java SE: 6u131, 7u121, 8u112; Java SE Embedded: 8u111) Oracle's note: Applies to client and server deployment of Java. This vulnerability can be exploited through sandboxed Java Web Start applications and sandboxed Java applets. It can also be exploited by supplying data to APIs in the specified Component without using sandboxed Java Web Start applications or sandboxed Java applets, such as through a web service.

Advisory

Type

Quarter

Products Oracle names in its risk matrix

Oracle Critical Patch Update October 2021 ↗

CPU

2021-Q4

Oracle Siebel CRM / EAI, SWSE (OpenSSL) (21.9 and prior)

Oracle Critical Patch Update October 2017 ↗

CPU

2017-Q4

Oracle Fusion Middleware / OSSL Module (11.1.1.7.0, 11.1.1.9.0, 12.1.3.0.0, 12.2.1.1.0, 12.2.1.2.0)

Oracle Critical Patch Update July 2017 ↗

CPU

2017-Q3

Oracle Database Server / Real Application Clusters (11.2.0.4, 12.1.0.2)

Oracle Critical Patch Update January 2017 ↗

CPU

2017-Q1

Oracle Java SE / Java SE, Java SE Embedded (Java SE: 6u131, 7u121, 8u112; Java SE Embedded: 8u111)
Oracle's note: Applies to client and server deployment of Java. This vulnerability can be exploited through sandboxed Java Web Start applications and sandboxed Java applets. It can also be exploited by supplying data to APIs in the specified Component without using sandboxed Java Web Start applications or sandboxed Java applets, such as through a web service.

Oracle components and versions

Family	Component	Versions, as Oracle lists them	Read as
Oracle Database Server	Real Application Clusters	11.2.0.4, 12.1.0.2	11.2.0.4 · 12.1.0.2
Oracle Fusion Middleware	OSSL Module	11.1.1.7.0, 11.1.1.9.0, 12.1.3.0.0, 12.2.1.1.0, 12.2.1.2.0	11.1.1.7.0 · 11.1.1.9.0 · 12.1.3.0.0 · 12.2.1.1.0 · 12.2.1.2.0
Oracle Java SE	Java SE, Java SE Embedded	Java SE: 6u131, 7u121, 8u112; Java SE Embedded: 8u111	6.0.131.0 · 7.0.121.0 · 8.0.111.0 · 8.0.112.0
Oracle Siebel CRM	EAI, SWSE (OpenSSL)	21.9 and prior

Family

Component

Versions, as Oracle lists them

Read as

Oracle Database Server

Real Application Clusters

11.2.0.4, 12.1.0.2

11.2.0.4 · 12.1.0.2

Oracle Fusion Middleware

OSSL Module

11.1.1.7.0, 11.1.1.9.0, 12.1.3.0.0, 12.2.1.1.0, 12.2.1.2.0

11.1.1.7.0 · 11.1.1.9.0 · 12.1.3.0.0 · 12.2.1.1.0 · 12.2.1.2.0

Oracle Java SE

Java SE, Java SE Embedded

Java SE: 6u131, 7u121, 8u112; Java SE Embedded: 8u111

6.0.131.0 · 7.0.121.0 · 8.0.111.0 · 8.0.112.0

Oracle Siebel CRM

EAI, SWSE (OpenSSL)

21.9 and prior

Products and versions

9 products, 45 version entries

Source	Vendor	Product	Scheme	Affected versions
nvd	cisco	content security management appliance	generic	9.6.6-068 · 9.7.0-006
nvd	nodejs	node.js	generic	≥ 0.10.0 and ＜ 0.10.47 · ≥ 0.12.0 and ＜ 0.12.16 · ≥ 4.0.0 and ＜ 4.1.2 · ≥ 4.2.0 and ＜ 4.6.0 · ≥ 6.0.0 and ＜ 6.7.0
nvd	openssl	openssl	generic	1.0.1a · 1.0.1b · 1.0.1c · 1.0.1d · 1.0.1e · 1.0.1f · 1.0.1g · 1.0.1h · 1.0.1i · 1.0.1j · 1.0.1k · 1.0.1l · 1.0.1m · 1.0.1n · 1.0.1o · 1.0.1p · 1.0.1q · 1.0.1r · 1.0.1t · 1.0.2a · 1.0.2b · 1.0.2c · 1.0.2d · 1.0.2e · 1.0.2f · 1.0.2h
nvd	oracle	database	generic	11.2.0.4 · 12.1.0.2
nvd	python	python	generic	≥ 2.7.0 and ＜ 2.7.13 · ≥ 3.4.0 and ＜ 3.4.7 · ≥ 3.5.0 and ＜ 3.5.3
nvd	redhat	enterprise linux	generic	5.0 · 6.0 · 7.0
nvd	redhat	jboss enterprise application platform	generic	6.0.0
nvd	redhat	jboss enterprise web server	generic	1.0.0 · 2.0.0
nvd	redhat	jboss web server	generic	3.0

Source

Vendor

Product

Scheme

Affected versions

nvd

cisco

content security management appliance

generic

9.6.6-068 · 9.7.0-006

nvd

nodejs

node.js

generic

≥ 0.10.0 and ＜ 0.10.47 · ≥ 0.12.0 and ＜ 0.12.16 · ≥ 4.0.0 and ＜ 4.1.2 · ≥ 4.2.0 and ＜ 4.6.0 · ≥ 6.0.0 and ＜ 6.7.0

nvd

openssl

generic

1.0.1a · 1.0.1b · 1.0.1c · 1.0.1d · 1.0.1e · 1.0.1f · 1.0.1g · 1.0.1h · 1.0.1i · 1.0.1j · 1.0.1k · 1.0.1l · 1.0.1m · 1.0.1n · 1.0.1o · 1.0.1p · 1.0.1q · 1.0.1r · 1.0.1t · 1.0.2a · 1.0.2b · 1.0.2c · 1.0.2d · 1.0.2e · 1.0.2f · 1.0.2h

nvd

oracle

database

generic

11.2.0.4 · 12.1.0.2

nvd

python

generic

≥ 2.7.0 and ＜ 2.7.13 · ≥ 3.4.0 and ＜ 3.4.7 · ≥ 3.5.0 and ＜ 3.5.3

nvd

redhat

enterprise linux

generic

5.0 · 6.0 · 7.0

nvd

redhat

jboss enterprise application platform

generic

6.0.0

nvd

redhat

jboss enterprise web server

generic

1.0.0 · 2.0.0

nvd

redhat

jboss web server

generic

3.0

Earlier manual review

A reviewer classified this CVE in an older dataset. We kept the labels and products below, but not the reviewer's reasoning.

## Manual Classification Context **Labels:** HTTPS, SWEET32, MULTIPLE, SSL/TLS, SEE NOTE 3, NO AUTH REMOTE EXPLOIT, OSSL MODULE, TLS, SWSE (OPENSSL), EAI **Products:** TLS SSH, SSL/TLS, DES CIPHER, IPSEC PROTOCOLS, SIEBEL UI FRAMEWORK, ORACLE SIEBEL CRM

References

URL	Tags
https://access.redhat.com/errata/RHSA-2017:0462	ADVISORY, RHSA-2017:0462
https://bugzilla.redhat.com/show_bug.cgi?id=1369383	REPORT, RHSA-2017:0462
https://access.redhat.com/security/cve/CVE-2016-2183	REPORT, RHSA-2017:0462
https://access.redhat.com/errata/RHSA-2016:1940	ARTICLE, RHSA-2017:0462
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10759	Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-09/msg00022.html	Mailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-09/msg00023.html	Mailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-09/msg00024.html	Mailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-09/msg00031.html	Mailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00005.html	Mailing List, Third Party Advisory

URL

Timeline

Published	2016-09-01	By the CVE Program.
NVD record modified	2026-06-17	NVD's own last-modified date for this record.

Published

2016-09-01

By the CVE Program.

NVD record modified

2026-06-17

NVD's own last-modified date for this record.

How VRT decided (5 of 24 rules ran)

5 of 24 rules ran. The rest didn't run because an earlier rule had already settled the CVE.

# Rule Outcome Status Detail

identity: Does this identifier describe a vulnerability at all? the first rule that matches decides

1 rejected no match CVE Program withdrawal of this identifier

scope: Is it a vulnerability Waratek protects? the first rule that matches decides

2 armr-patch-file no match An ARMR patch file on disk for this CVE

3 armr-secure-rule-file no match An ARMR security-rule template on disk for this CVE

4 manual-classification no match A researcher's recorded decision for this specific CVE

5 manual classification decided it matched Outside Waratek scope Found in legacy manual classifications

6 non-java-upstream not reached A root cause in non-Java code: an OS kernel, a C library, or a bundled runtime

7 oracle-component not reached The defect being in a component of a tracked product the agent does not reach: JavaFX, the Java SE installer, the JInitiator browser plug-in, the native WebLogic proxy plug-in, or a native part of Oracle Application Server or Collaboration Suite (HTTP Server, Web Cache, Internet Directory, mail and calendar servers). Oracle gives these no CPE of their own and names them only in the description.

8 java-client-side not reached Oracle's own risk-matrix note saying the CVE is reached only through untrusted code in the Java sandbox (applets, Web Start) or only through a client installation of Java, so a server running its own trusted code is not exposed

9 osv-maven not reached An OSV.dev record of this CVE affecting a package published to Maven Central. When every such package is one business applications do not use (Minecraft mods and launchers, Fastjson) and no tracked product is named by CPE, it settles the CVE as Outside Waratek scope instead

10 cna-maven-package not reached An affected Maven artifact named by the CNA itself

11 known-cpe-product not reached An NVD CPE naming a product ARMR tracks

12 cna-cpe-product not reached A CPE the CNA published naming a tracked product. Oracle publishes these on advisory day, months before NVD.

13 oracle-advisory-family not reached A tracked product family named in Oracle's own risk matrix. CPE cannot carry a suite name, only a module.

14 cna-named-product not reached A tracked product named in words by the CVE's own CNA, on a record with no CPE yet. Apache and Eclipse publish these on advisory day, before NVD adds CPE data.

15 non-deployable-product not reached The only affected product being a sealed appliance image, where Java runs but no -javaagent can be attached

16 unmatched-product not reached No tracked product matched above, and none present at all

disposition: What do we do about one that is? every rule runs

17 patch-hint not reached A reference pointing at the upstream fix: a commit, a PR, a Red Hat bug

18 open-source-maven not reached The affected package being open source on Maven, so the fix can be read

19 poc-derivable not reached An indexed exploit clearing the evidence bar to reverse-engineer, where there is no source to read

20 no-exploit not reached Nothing to build a rule from yet: no published exploit, no CISA record of exploitation and no source-level change to read

21 secure-rule-match not reached A vulnerability class already blocked by an ARMR security rule

22 exploited-no-fix-or-poc not reached Somebody exploiting this CVE (a CISA or VulnCheck KEV listing, or a CISA verdict of active exploitation), with no fix, source code or PoC to build a rule from

23 below-action-threshold not reached Medium or Low severity, no CISA or VulnCheck KEV listing, no PoC clearing the evidence bar, no CISA verdict, no Oracle advisory

24 no-exploit-published not reached Exploit code for this candidate, published in a reviewed catalogue or a GitHub repository with 5 or more stars, or in use per CISA or VulnCheck; not only a CISA verdict, a forecast, or nothing at all

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