CVE-2007-4752

CVE-2007-4752 is a high-severity vulnerability in Openbsd Openssh with a CVSS 2.0 base score of 7.5. 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-20.

Key facts

Description

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.

Frequently asked questions

What is CVE-2007-4752?
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.
How severe is CVE-2007-4752?
CVE-2007-4752 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2007-4752 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-4752?
CVE-2007-4752 primarily affects Openbsd Openssh. In total, 13 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2007-4752?
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-2007-4752 published?
CVE-2007-4752 was published on 2007-09-12 and last updated on 2026-06-16.

References

Affected products (13)

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Threat intelligence

Threat-intel indicators referencing this CVE: