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CVE-2015-6563

The monitor component in sshd in OpenSSH before 7.0 on non-OpenBSD platforms accepts extraneous username data in MONITOR_REQ_PAM_INIT_CTX…

Medium6.4EPSS 0.38%
Published
Updated
Reserved
Assigned by
mitre

Description

The monitor component in sshd in OpenSSH before 7.0 on non-OpenBSD platforms accepts extraneous username data in MONITOR_REQ_PAM_INIT_CTX requests, which allows local users to conduct impersonation attacks by leveraging any SSH login access in conjunction with control of the sshd uid to send a crafted MONITOR_REQ_PWNAM request, related to monitor.c and monitor_wrap.c.

Scores

CVSS scores of CVE-2015-6563, by who scored it
Scored byCVSSScoreVector
CISA-ADPADP (enrichment)3.1Medium6.4CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
NVDNVD · Modified3.1Medium6.4CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS (exploitation in 30 days)
0.38% · top 68% of all CVEs (2 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: no · Technical impact: total

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The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.4.

Weakness

Affected products

  • n/a

    • affected n/a

References (18)

Sources

The same CVE in the primary databases and aggregators, to check against.

Record last updated .