CVE-2006-0883

CVE-2006-0883 is a medium-severity vulnerability in Freebsd with a CVSS 2.0 base score of 5.0. 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-399.

Key facts

Description

OpenSSH on FreeBSD 5.3 and 5.4, when used with OpenPAM, does not properly handle when a forked child process terminates during PAM authentication, which allows remote attackers to cause a denial of service (client connection refusal) by connecting multiple times to the SSH server, waiting for the password prompt, then disconnecting.

Frequently asked questions

What is CVE-2006-0883?
OpenSSH on FreeBSD 5.3 and 5.4, when used with OpenPAM, does not properly handle when a forked child process terminates during PAM authentication, which allows remote attackers to cause a denial of service (client connection refusal) by connecting multiple times to the SSH server, waiting for the password prompt, then disconnecting.
How severe is CVE-2006-0883?
CVE-2006-0883 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2006-0883 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2006-0883?
CVE-2006-0883 primarily affects Freebsd. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2006-0883?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2006-0883 published?
CVE-2006-0883 was published on 2006-03-07 and last updated on 2026-06-16.

References

Affected products (9)

More vulnerabilities in Freebsd

All CVEs affecting Freebsd →

Other CWE-399 (Resource Management Errors) vulnerabilities

Browse all CWE-399 (Resource Management Errors) vulnerabilities →