CVE-2006-4335

CVE-2006-4335 is a high-severity vulnerability in Gzip with a CVSS 2.0 base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

Array index error in the make_table function in unlzh.c in the LZH decompression component in gzip 1.3.5, when running on certain platforms, allows context-dependent attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted GZIP archive that triggers an out-of-bounds write, aka a "stack modification vulnerability."

Frequently asked questions

What is CVE-2006-4335?
Array index error in the make_table function in unlzh.c in the LZH decompression component in gzip 1.3.5, when running on certain platforms, allows context-dependent attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted GZIP archive that triggers an out-of-bounds write, aka a "stack modification vulnerability."
How severe is CVE-2006-4335?
CVE-2006-4335 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2006-4335 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2006-4335?
CVE-2006-4335 affects Gzip. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2006-4335?
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-2006-4335 published?
CVE-2006-4335 was published on 2006-09-19 and last updated on 2026-06-16.

References

Affected products (1)

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