CVE-2003-0786

CVE-2003-0786 is a critical-severity vulnerability in Openbsd Openssh with a CVSS 2.0 base score of 10.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

The SSH1 PAM challenge response authentication in OpenSSH 3.7.1 and 3.7.1p1, when Privilege Separation is disabled, does not check the result of the authentication attempt, which can allow remote attackers to gain privileges.

Frequently asked questions

What is CVE-2003-0786?
The SSH1 PAM challenge response authentication in OpenSSH 3.7.1 and 3.7.1p1, when Privilege Separation is disabled, does not check the result of the authentication attempt, which can allow remote attackers to gain privileges.
How severe is CVE-2003-0786?
CVE-2003-0786 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2003-0786 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2003-0786?
CVE-2003-0786 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-2003-0786?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2003-0786 published?
CVE-2003-0786 was published on 2003-11-17 and last updated on 2026-06-16.

References

Affected products (2)

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