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CVE-2015-6565

29
FAUCET Score

CVE-2015-6565 describes a vulnerability in OpenSSH versions 6.8 and 6.9 where sshd sets world-writable permissions for TTY devices, allowing local users to disrupt terminals or potentially achieve other unspecified impacts through escape sequence injection. This vulnerability carries a CVSS score of 7.2, indicating a high severity with local access, low attack complexity, and complete confidentiality, integrity, and availability impacts. While not listed on the KEV catalog, an ExploitDB entry (EDB-41173) exists for local privilege escalation, and there has been some community discussion and media coverage regarding its exploitability.

Impacted Technologies

VendorProductVersion(s)CPE
6.8CPE matchmatch criteria
cpe:2.3:a:openbsd:openssh:6.8:*:*:*:*:*:*:*
6.9CPE matchmatch criteria
cpe:2.3:a:openbsd:openssh:6.9:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.2HIGH

AV:L/AC:L/Au:N/C:C/I:C/A:C

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.60%
Probability of exploitation in next 30 days
EPSS Percentile
83.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-41173 · Jan 26, 2017
This CVE's current EPSS score of 0.0261 is in the 94th percentile among its peer group of 3,241 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.5 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2015-6565Low

openssh: Incorrectly set TTYs to be world-writable

Aug 11, 2015

References

openwall.com / lists/oss-security/2017/01/26/2
cert-portal.siemens.com / productcert/pdf/ssa-412672.pdf
h20566.www2.hpe.com / portal/site/hpsc/public/kb/docDisplay
h20566.www2.hpe.com / portal/site/hpsc/public/kb/docDisplay
h20566.www2.hpe.com / portal/site/hpsc/public/kb/docDisplay
security.gentoo.org / glsa/201512-04
exploit-db.com / exploits/41173
openssh.com / txt/release-7.0
Vendor Advisory
openwall.com / lists/oss-security/2015/08/22/1
securityfocus.com / bid/76497
securitytracker.com / id/1033917