Is CVE-2006-4336 in the CISA KEV catalog?

No. CVE-2006-4336 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2006-4336?

CVE-2006-4336 has a CVSS v2 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2006-4336?

CVE-2006-4336 has an EPSS score of 5.51% (92th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2006-4336?

Upgrade gzip on debian 11 to 1.3.5-15 or later.

CVE & CISA-KEV Catalog

CVE-2006-4336

HIGHEPSS 92th pctl

7.5

CVSS v2

NVD

Description

Buffer underflow in the build_tree function in unpack.c in gzip 1.3.5 allows context-dependent attackers to execute arbitrary code via a crafted leaf count table that causes a write to a negative index.

How to fix

Remediation Available

gzipDebian

Fixed in:1.3.5-15CVE-2006-4336

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

5.51%probability of exploitation in 30 days

92ndpercentile

High risk: more likely to be exploited than 92% of all known CVEs.

References

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-16.