CVE-2016-0777

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

63.46% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 99.1% of scored records. A rank, not a probability.

NVD base score

6.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2016-01-14 00:00Z10 YR AGO

Last updated

2026-05-29 20:30Z5 MO AGO

Reserved

2015-12-16

Assigning CNA

redhat

Record state

PUBLISHED

Severity

Medium (CVSS 6.5)

CNA CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Weaknesses

• CWE-200Exposure of Sensitive Information to an Unauthorized ActorClass
• CWE-682Incorrect CalculationPillar

Data version

5.2

Document digest

7cae55ceb78548f01421ee242addba0b84c8228a167e49855fc3039c4a48bdd0

• blogs.sophos.comhttps://blogs.sophos.com/2016/02/17/utm-up2date-9-354-released/
• lists.opensuse.orgSUSE-SU-2016:0117http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00006.htmlvendor-advisory
• blogs.sophos.comhttps://blogs.sophos.com/2016/02/29/utm-up2date-9-319-released/
• lists.apple.comAPPLE-SA-2016-03-21-5http://lists.apple.com/archives/security-announce/2016/Mar/msg00004.htmlvendor-advisory
• h20566.www2.hpe.comhttps://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05247375
• www.securityfocus.com20160114 Qualys Security Advisory - Roaming through the OpenSSH client: CVE-2016-0777 and CVE-2016-0778http://www.securityfocus.com/archive/1/537295/100/0/threadedmailing-list
• support.apple.comhttps://support.apple.com/HT206167
• lists.fedoraproject.orgFEDORA-2016-4556904561http://lists.fedoraproject.org/pipermail/package-announce/2016-January/176349.htmlvendor-advisory
• kb.juniper.nethttp://kb.juniper.net/InfoCenter/index?page=content&id=JSA10734
• www.securityfocus.com80695http://www.securityfocus.com/bid/80695vdb-entry
• h20566.www2.hpe.comhttps://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05385680
• security.freebsd.orgFreeBSD-SA-16:07https://security.FreeBSD.org/advisories/FreeBSD-SA-16:07.openssh.ascvendor-advisory
• lists.fedoraproject.orgFEDORA-2016-c330264861http://lists.fedoraproject.org/pipermail/package-announce/2016-January/175676.htmlvendor-advisory
• www.oracle.comhttp://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
• www.openssh.comhttp://www.openssh.com/txt/release-7.1p2
• lists.opensuse.orgopenSUSE-SU-2016:0128http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00014.htmlvendor-advisory
• lists.fedoraproject.orgFEDORA-2016-2e89eba0c1http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176516.htmlvendor-advisory
• bto.bluecoat.comhttps://bto.bluecoat.com/security-advisory/sa109
• www.securitytracker.com1034671http://www.securitytracker.com/id/1034671vdb-entry
• lists.opensuse.orgopenSUSE-SU-2016:0127http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00013.htmlvendor-advisory
• security.gentoo.orgGLSA-201601-01https://security.gentoo.org/glsa/201601-01vendor-advisory
• h20566.www2.hpe.comhttps://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05390722
• www.openwall.com[oss-security] 20160114 Qualys Security Advisory - Roaming through the OpenSSH client: CVE-2016-0777 and CVE-2016-0778http://www.openwall.com/lists/oss-security/2016/01/14/7mailing-list
• seclists.org20160115 Qualys Security Advisory - Roaming through the OpenSSH client: CVE-2016-0777 and CVE-2016-0778http://seclists.org/fulldisclosure/2016/Jan/44mailing-list
• lists.opensuse.orgSUSE-SU-2016:0119http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00008.htmlvendor-advisory
• packetstormsecurity.comhttp://packetstormsecurity.com/files/135273/Qualys-Security-Advisory-OpenSSH-Overflow-Leak.html
• lists.opensuse.orgSUSE-SU-2016:0118http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00007.htmlvendor-advisory
• lists.fedoraproject.orgFEDORA-2016-67c6ef0d4fhttp://lists.fedoraproject.org/pipermail/package-announce/2016-January/175592.htmlvendor-advisory
• lists.opensuse.orgSUSE-SU-2016:0120http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00009.htmlvendor-advisory
• www.ubuntu.comUSN-2869-1http://www.ubuntu.com/usn/USN-2869-1vendor-advisory
• h20566.www2.hpe.comhttps://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05356388
• www.oracle.comhttp://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html
• www.debian.orgDSA-3446http://www.debian.org/security/2016/dsa-3446vendor-advisory
• cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf