CVE-2005-0468

CVE-2005-0468 is a high-severity vulnerability in Ncsa Telnet with a CVSS 2.0 base score of 7.5. Its EPSS exploit-prediction score of 27% places it in the 98th percentile, indicating an elevated likelihood of exploitation.

Key facts

Description

Heap-based buffer overflow in the env_opt_add function in telnet.c for various BSD-based Telnet clients allows remote attackers to execute arbitrary code via responses that contain a large number of characters that require escaping, which consumers more memory than allocated.

Frequently asked questions

What is CVE-2005-0468?
Heap-based buffer overflow in the env_opt_add function in telnet.c for various BSD-based Telnet clients allows remote attackers to execute arbitrary code via responses that contain a large number of characters that require escaping, which consumers more memory than allocated.
How severe is CVE-2005-0468?
CVE-2005-0468 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2005-0468 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 27% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2005-0468?
CVE-2005-0468 affects Ncsa Telnet. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2005-0468?
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-2005-0468 published?
CVE-2005-0468 was published on 2005-05-02 and last updated on 2026-06-16.

References

Affected products (1)

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