--- title: "CVE-2016-0777: The resend_bytes function… | CubePath" description: "The resend_bytes function in roaming_common.c in the client in OpenSSH 5.x, 6.x, and 7.x before 7.1p2 allows remote servers to obtain sensitive…" language: en source: https://cubepath.com/security/cve/CVE-2016-0777 --- # CVE-2016-0777: The resend_bytes function… | CubePath ## Description The resend\_bytes function in roaming\_common.c in the client in OpenSSH 5.x, 6.x, and 7.x before 7.1p2 allows remote servers to obtain sensitive information from process memory by requesting transmission of an entire buffer, as demonstrated by reading a private key. Official description from the CVE record, published by redhat. Copyright © 1999-2026 The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CVE license. [View the record on cve.org](https://www.cve.org/CVERecord?id=CVE-2016-0777) ## Key data ### CVSS 3.1 Medium 6.5 Score published by CISA-ADP in the CVE record. CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N | 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 | Low | A basic user account is 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](https://www.first.org/cvss/) . ### EPSS Exploit Prediction Scoring System by FIRST: an estimate of the probability that exploitation activity will be observed in the next 30 days. Score 0.63468 (63.5% probability) Percentile 99.2% Scores of Nov 10, 2026 Model v2026.06.15 ### CISA assessment as of May 29, 2026 Stakeholder-Specific Vulnerability Categorization (SSVC) decision points added by CISA. Automatable no Technical impact partial ### Weakness (CWE) CWE catalog version 5.0. CWE names: Copyright © 2006-2026, The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CWE license. - [CWE-200](https://cwe.mitre.org/data/definitions/200.html) Exposure of Sensitive Information to an Unauthorized Actor ## References Links listed in the CVE record. They lead to other sites, which CubePath does not control. - [blogs.sophos.com/2016/02/17/utm-up2date-9-354-released](https://blogs.sophos.com/2016/02/17/utm-up2date-9-354-released/) - [SUSE-SU-2016:0117](http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00006.html) (lists.opensuse.org) vendor-advisory - [blogs.sophos.com/2016/02/29/utm-up2date-9-319-released](https://blogs.sophos.com/2016/02/29/utm-up2date-9-319-released/) - [APPLE-SA-2016-03-21-5](http://lists.apple.com/archives/security-announce/2016/Mar/msg00004.html) (lists.apple.com) vendor-advisory - [h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?d…](https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr%5Fna-c05247375) - [20160114 Qualys Security Advisory - Roaming through the OpenSSH client: CVE-2016-0777 and CVE-2016-0778](http://www.securityfocus.com/archive/1/537295/100/0/threaded) (securityfocus.com) mailing-list - [support.apple.com/HT206167](https://support.apple.com/HT206167) - [FEDORA-2016-4556904561](http://lists.fedoraproject.org/pipermail/package-announce/2016-January/176349.html) (lists.fedoraproject.org) vendor-advisory - [kb.juniper.net/InfoCenter/index?page=content&id=JSA10734](http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10734) - [80695](http://www.securityfocus.com/bid/80695) (securityfocus.com) vdb-entry - [h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?d…](https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr%5Fna-c05385680) - [FreeBSD-SA-16:07](https://security.FreeBSD.org/advisories/FreeBSD-SA-16:07.openssh.asc) (security.freebsd.org) vendor-advisory - [FEDORA-2016-c330264861](http://lists.fedoraproject.org/pipermail/package-announce/2016-January/175676.html) (lists.fedoraproject.org) vendor-advisory - [oracle.com/technetwork/topics/security/linuxbulletinjan2016…](http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html) - [openssh.com/txt/release-7.1p2](http://www.openssh.com/txt/release-7.1p2) - [openSUSE-SU-2016:0128](http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00014.html) (lists.opensuse.org) vendor-advisory - [FEDORA-2016-2e89eba0c1](http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176516.html) (lists.fedoraproject.org) vendor-advisory - [bto.bluecoat.com/security-advisory/sa109](https://bto.bluecoat.com/security-advisory/sa109) - [1034671](http://www.securitytracker.com/id/1034671) (securitytracker.com) vdb-entry - [openSUSE-SU-2016:0127](http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00013.html) (lists.opensuse.org) vendor-advisory - [GLSA-201601-01](https://security.gentoo.org/glsa/201601-01) (security.gentoo.org) vendor-advisory - [h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?d…](https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr%5Fna-c05390722) - [\[oss-security\] 20160114 Qualys Security Advisory - Roaming through the OpenSSH client: CVE-2016-0777 and CVE-2016-0778](http://www.openwall.com/lists/oss-security/2016/01/14/7) (openwall.com) mailing-list - [20160115 Qualys Security Advisory - Roaming through the OpenSSH client: CVE-2016-0777 and CVE-2016-0778](http://seclists.org/fulldisclosure/2016/Jan/44) (seclists.org) mailing-list - [SUSE-SU-2016:0119](http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00008.html) (lists.opensuse.org) vendor-advisory - [packetstormsecurity.com/files/135273/Qualys-Security-Adviso…](http://packetstormsecurity.com/files/135273/Qualys-Security-Advisory-OpenSSH-Overflow-Leak.html) - [SUSE-SU-2016:0118](http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00007.html) (lists.opensuse.org) vendor-advisory - [FEDORA-2016-67c6ef0d4f](http://lists.fedoraproject.org/pipermail/package-announce/2016-January/175592.html) (lists.fedoraproject.org) vendor-advisory - [SUSE-SU-2016:0120](http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00009.html) (lists.opensuse.org) vendor-advisory - [USN-2869-1](http://www.ubuntu.com/usn/USN-2869-1) (ubuntu.com) vendor-advisory - [h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?d…](https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr%5Fna-c05356388) - [oracle.com/technetwork/topics/security/bulletinoct2015-2511…](http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html) - [DSA-3446](http://www.debian.org/security/2016/dsa-3446) (debian.org) vendor-advisory - [cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf](https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf) ## Timeline 1. ID reserved Dec 16, 2015 2. Record published Jan 14, 2016 3. Record last updated May 29, 2026 ## Look up another CVE ## About CubePath CubePath is a cloud provider with data centers in Europe and the United States. It offers VPS, bare metal servers and DDoS protection. [Cloud VPS](https://cubepath.com/vps) [DDoS protection](https://cubepath.com/ddos-protection) 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, 19:57 UTC. [Sources and licenses](https://cubepath.com/security/cve/legal)