Improper Input Validation Affecting openssh package, versions <1:4.7p1-1


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
2.37% (82nd percentile)

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  • Snyk IDSNYK-ECHOLATEST-OPENSSH-17993784
  • published16 Jul 2026
  • disclosed12 Sept 2007

Introduced: 12 Sep 2007

CVE-2007-4752  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade Echo:latest openssh to version 1:4.7p1-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream openssh package and not the openssh package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

ssh in OpenSSH before 4.7 does not properly handle when an untrusted cookie cannot be created and uses a trusted X11 cookie instead, which allows attackers to violate intended policy and gain privileges by causing an X client to be treated as trusted.

References

CVSS Base Scores

version 3.1