CVE-2016-2183
Exposure of Sensitive Information to an Unauthorized Actor
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
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.
Official description from the CVE record, published by redhat. Copyright © 1999-2026 The MITRE Corporation. See /security/cve/legal for the CVE license. View the record on cve.org
Key data
CVSS 3.1 High 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector: Network
The vulnerable component can be reached over a network, possibly from the Internet.
Attack complexity: Low
No special conditions are needed. The attack can be repeated at will.
Privileges required: None
No account or privileges are needed.
User interaction: None
No action from any user is needed.
Scope: Unchanged
The impact stays within the vulnerable component.
Confidentiality impact: High
Serious or total effect on the secrecy of data.
Integrity impact: None
No effect on the trustworthiness of data.
Availability impact: None
No effect on availability.
| Metric | Value | What it means |
|---|---|---|
| Attack vector | Network | The vulnerable component can be reached over a network, possibly from the Internet. |
| Attack complexity | Low | No special conditions are needed. The attack can be repeated at will. |
| Privileges required | None | No account or privileges are needed. |
| User interaction | None | No action from any user is needed. |
| Scope | Unchanged | The impact stays within the vulnerable component. |
| Confidentiality impact | High | Serious or total effect on the secrecy of data. |
| Integrity impact | None | No effect on the trustworthiness of data. |
| Availability impact | None | No effect on availability. |
CVSS is owned and managed by FIRST.Org, Inc. (FIRST) and is used by permission. Each CVSS score on this site is shown together with its vector string, as published in the CVE record by the source named next to it. Learn more at first.org/cvss.
EPSS
- Score
- 0.94697 (94.7% probability)
- Percentile
- 99.9%
- Scores of
- Nov 10, 2026
- Model
- v2026.06.15
CISA assessment as of May 29, 2026
- Exploitation
- Public proof of concept recorded by CISA
- Automatable
- yes
- Technical impact
- partial
Weakness (CWE)
- CWE-200Exposure of Sensitive Information to an Unauthorized Actor
References
- RHSA-2017:3113 (access.redhat.com)vendor-advisory
- RHSA-2017:0338 (rhn.redhat.com)vendor-advisory
- tenable.com/security/tns-2016-20
- h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US…
- GLSA-201612-16 (security.gentoo.org)vendor-advisory
- h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?d…
- h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?d…
- kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA403…
- h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?d…
- RHSA-2017:3240 (access.redhat.com)vendor-advisory
- tenable.com/security/tns-2016-16
- RHSA-2017:2709 (access.redhat.com)vendor-advisory
- 92630 (securityfocus.com)vdb-entry
- h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?d…
- tenable.com/security/tns-2016-21
- kc.mcafee.com/corporate/index?page=content&id=SB10171
- RHSA-2017:3239 (access.redhat.com)vendor-advisory
- 42091 (exploit-db.com)exploit
- GLSA-201701-65 (security.gentoo.org)vendor-advisory
- h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?d…
- 1036696 (securitytracker.com)vdb-entry
- security.netapp.com/advisory/ntap-20160915-0001
- h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US…
- GLSA-201707-01 (security.gentoo.org)vendor-advisory
- 95568 (securityfocus.com)vdb-entry
- RHSA-2017:3114 (access.redhat.com)vendor-advisory
- bto.bluecoat.com/security-advisory/sa133
- tenable.com/security/tns-2017-09
- h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?d…
- h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?d…
- RHSA-2017:1216 (access.redhat.com)vendor-advisory
- wiki.opendaylight.org/view/Security_Advisories
- RHSA-2017:2710 (access.redhat.com)vendor-advisory
- security.netapp.com/advisory/ntap-20170119-0001
- h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?d…
- [tls] 20091120 RC4+3DES rekeying - long-lived TLS connections (ietf.org)mailing-list
- RHSA-2018:2123 (access.redhat.com)vendor-advisory
- RHSA-2017:0337 (rhn.redhat.com)vendor-advisory
- RHSA-2017:2708 (access.redhat.com)vendor-advisory
- RHSA-2017:0336 (rhn.redhat.com)vendor-advisory
- SUSE-SU-2016:2470 (lists.opensuse.org)vendor-advisory
- h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?d…
- RHSA-2017:0462 (rhn.redhat.com)vendor-advisory
- h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?d…
- kb.juniper.net/InfoCenter/index?page=content&id=JSA10759
- kc.mcafee.com/corporate/index?page=content&id=SB10215
- SUSE-SU-2017:2700 (lists.opensuse.org)vendor-advisory
- 20170329 [security bulletin] HPESBUX03725 rev.1 - HPE HP-UX Web Server Suite running Apache, Multiple Vulnerabilities (securityfocus.com)mailing-list
- USN-3087-1 (ubuntu.com)vendor-advisory
- SUSE-SU-2016:2469 (lists.opensuse.org)vendor-advisory
- h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US…
- openSUSE-SU-2016:2537 (lists.opensuse.org)vendor-advisory
- 20161207 [security bulletin] HPSBHF03674 rev.1 HPE Comware 5 and Comware 7 Network Products using SSL/TLS, Remote Disclosure of Information (securityfocus.com)mailing-list
- USN-3087-2 (ubuntu.com)vendor-advisory
- 20180510 [security bulletin] MFSBGN03805 - HP Service Manager, Remote Disclosure of Information (securityfocus.com)mailing-list
- kc.mcafee.com/corporate/index?page=content&id=SB10197
- kc.mcafee.com/corporate/index?page=content&id=SB10186
- SUSE-SU-2017:2699 (lists.opensuse.org)vendor-advisory
- 20170831 [security bulletin] HPESBGN03765 rev.2 - HPE LoadRunner and HPE Performance Center, Remote Disclosure of Information (securityfocus.com)mailing-list
- h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US…
- openSUSE-SU-2016:2407 (lists.opensuse.org)vendor-advisory
- softwaresupport.softwaregrp.com/document/-/facetsearch/docu…
- 20170717 Orion Elite Hidden IP Browser Pro - All Versions - Multiple Known Vulnerabilities (seclists.org)mailing-list
- USN-3194-1 (ubuntu.com)vendor-advisory
- SUSE-SU-2016:2458 (lists.opensuse.org)vendor-advisory
- 20181113 [security bulletin] MFSBGN03831 rev. - Service Management Automation, remote disclosure of information (seclists.org)mailing-list
- support.f5.com/csp/article/K13167034
- h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US…
- 20180510 [security bulletin] MFSBGN03805 - HP Service Manager, Remote Disclosure of Information (securityfocus.com)mailing-list
- DSA-3673 (debian.org)vendor-advisory
- openSUSE-SU-2016:2391 (lists.opensuse.org)vendor-advisory
- USN-3372-1 (ubuntu.com)vendor-advisory
- openSUSE-SU-2018:0458 (lists.opensuse.org)vendor-advisory
- SUSE-SU-2017:0460 (lists.opensuse.org)vendor-advisory
- SUSE-SU-2017:0490 (lists.opensuse.org)vendor-advisory
- USN-3270-1 (ubuntu.com)vendor-advisory
- 20170214 [security bulletin] HPESBGN03697 rev.1 - HPE Business Service Management (BSM), Remote Disclosure of Information (securityfocus.com)mailing-list
- softwaresupport.softwaregrp.com/document/-/facetsearch/docu…
- SUSE-SU-2016:2387 (lists.opensuse.org)vendor-advisory
- 20170529 SSD Advisory - IBM Informix Dynamic Server and Informix Open Admin Tool Multiple Vulnerabilities (seclists.org)mailing-list
- openSUSE-SU-2017:0513 (lists.opensuse.org)vendor-advisory
- h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US…
- 20161207 [security bulletin] HPSBHF03674 rev.1 HPE Comware 5 and Comware 7 Network Products using SSL/TLS, Remote Disclosure of Information (securityfocus.com)mailing-list
- openSUSE-SU-2017:0374 (lists.opensuse.org)vendor-advisory
- h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US…
- packetstormsecurity.com/files/142756/IBM-Informix-Dynamic-S…
- SUSE-SU-2016:2468 (lists.opensuse.org)vendor-advisory
- SUSE-SU-2017:0346 (lists.opensuse.org)vendor-advisory
- openSUSE-SU-2016:2496 (lists.opensuse.org)vendor-advisory
- USN-3198-1 (ubuntu.com)vendor-advisory
- h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US…
- 20170831 [security bulletin] HPESBGN03765 rev.2 - HPE LoadRunner and HPE Performance Center, Remote Disclosure of Information (securityfocus.com)mailing-list
- SUSE-SU-2017:1444 (lists.opensuse.org)vendor-advisory
- SUSE-SU-2016:2394 (lists.opensuse.org)vendor-advisory
- 20170329 [security bulletin] HPESBUX03725 rev.1 - HPE HP-UX Web Server Suite running Apache, Multiple Vulnerabilities (securityfocus.com)mailing-list
- USN-3179-1 (ubuntu.com)vendor-advisory
- huawei.com/en/psirt/security-advisories/huawei-sa-20170322-…
- RHSA-2019:1245 (access.redhat.com)vendor-advisory
- RHSA-2019:2859 (access.redhat.com)vendor-advisory
- RHSA-2020:0451 (access.redhat.com)vendor-advisory
and 37 more in the record on cve.org
Timeline
- ID reserved
- Record published
- Record last updated
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About CubePath
Data from the CVE Program (MITRE), CISA KEV and FIRST EPSS. CVSS is owned by FIRST and used by permission. Not affiliated with or endorsed by MITRE, CISA or FIRST. Data as of Nov 10, 2026, 19:45 UTC. Sources and licenses