CVE-2007-2768

CVE-2007-2768 is a medium-severity vulnerability in Openbsd Openssh with a CVSS 2.0 base score of 4.3. 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-200.

Key facts

Description

OpenSSH, when using OPIE (One-Time Passwords in Everything) for PAM, allows remote attackers to determine the existence of certain user accounts, which displays a different response if the user account exists and is configured to use one-time passwords (OTP), a similar issue to CVE-2007-2243.

Frequently asked questions

What is CVE-2007-2768?
OpenSSH, when using OPIE (One-Time Passwords in Everything) for PAM, allows remote attackers to determine the existence of certain user accounts, which displays a different response if the user account exists and is configured to use one-time passwords (OTP), a similar issue to CVE-2007-2243.
How severe is CVE-2007-2768?
CVE-2007-2768 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2007-2768 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 9% (94th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-2768?
CVE-2007-2768 primarily affects Openbsd Openssh. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2007-2768?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2007-2768 published?
CVE-2007-2768 was published on 2007-05-21 and last updated on 2026-06-16.

References

Affected products (5)

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Threat intelligence

Threat-intel indicators referencing this CVE: