How severe is CVE-2015-6565?

CVE-2015-6565 has a CVSS 2.0 base score of 7.2, rated high severity.

Is CVE-2015-6565 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-6565?

CVE-2015-6565 primarily affects Openbsd Openssh. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2015-6565?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2015-6565 published?

CVE-2015-6565 was published on 2015-08-24 and last updated on 2026-06-17.

CVE-2015-6565

CVE-2015-6565 is a high-severity vulnerability in Openbsd Openssh with a CVSS 2.0 base score of 7.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-264.

Key facts

Severity: High (CVSS 2.0 base score 7.2)
EPSS exploit prediction: 3% (84th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-264
Affected product: Openbsd Openssh
Published: 2015-08-24
Last modified: 2026-06-17

Description

sshd in OpenSSH 6.8 and 6.9 uses world-writable permissions for TTY devices, which allows local users to cause a denial of service (terminal disruption) or possibly have unspecified other impact by writing to a device, as demonstrated by writing an escape sequence.

Frequently asked questions

What is CVE-2015-6565?: sshd in OpenSSH 6.8 and 6.9 uses world-writable permissions for TTY devices, which allows local users to cause a denial of service (terminal disruption) or possibly have unspecified other impact by writing to a device, as demonstrated by writing an escape sequence.
How severe is CVE-2015-6565?: CVE-2015-6565 has a CVSS 2.0 base score of 7.2, rated high severity.
Is CVE-2015-6565 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-6565?: CVE-2015-6565 primarily affects Openbsd Openssh. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2015-6565?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2015-6565 published?: CVE-2015-6565 was published on 2015-08-24 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:openbsd:openssh:6.8:*:*:*:*:*:*:*
cpe:2.3:a:openbsd:openssh:6.9:*:*:*:*:*:*:*

More vulnerabilities in Openbsd Openssh

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Other CWE-264 (Permissions, Privileges, and Access Controls) vulnerabilities

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CVE-2015-8267 — Critical (CVSS 10.0): The PasswordReset.Controllers.ResetController.ChangePasswordIndex method in PasswordReset.dll in Dovestones AD Self…
CVE-2015-7919 — Critical (CVSS 10.0): SearchBlox 8.3 before 8.3.1 allows remote attackers to write to the config file, and consequently cause a denial of…
CVE-2015-7071 — Critical (CVSS 10.0): The File Bookmark component in Apple OS X before 10.11.2 allows attackers to bypass a sandbox protection mechanism for…

Browse all CWE-264 (Permissions, Privileges, and Access Controls) vulnerabilities →

Threat intelligence

Threat-intel indicators referencing this CVE:

223.197.153.143 (ipv4-addr)