CVE-2006-6418

CVE-2006-6418 is a high-severity vulnerability in Hp Tru64 with a CVSS 2.0 base score of 7.2. 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-119.

Key facts

Description

Buffer overflow in the POSIX Threads library (libpthread) on HP Tru64 UNIX 4.0F PK8, 4.0G PK4, and 5.1A PK6 allows local users to gain root privileges via a long PTHREAD_CONFIG environment variable.

Frequently asked questions

What is CVE-2006-6418?
Buffer overflow in the POSIX Threads library (libpthread) on HP Tru64 UNIX 4.0F PK8, 4.0G PK4, and 5.1A PK6 allows local users to gain root privileges via a long PTHREAD_CONFIG environment variable.
How severe is CVE-2006-6418?
CVE-2006-6418 has a CVSS 2.0 base score of 7.2, rated high severity.
Is CVE-2006-6418 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2006-6418?
CVE-2006-6418 primarily affects Hp Tru64. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2006-6418?
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-2006-6418 published?
CVE-2006-6418 was published on 2006-12-10 and last updated on 2026-06-16.

References

Affected products (3)

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