kbrain

CVE-2006-4336

HIGH · CVSS 7.5EPSS 6.0%EU EUVD

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.

Key facts

CVSS score
7.5 (v2.0)
Severity
HIGH
CVSS vector
AV:N/AC:L/Au:N/C:P/I:P/A:P
EPSS score
6.0% (93th percentile)
In CISA KEV
No
In EU EUVD
Yes (EUVD-2006-4324)
Published
September 19, 2006
NVD last modified
June 16, 2026
Status
Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2006-4324 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.

View on the EU Vulnerability Database

Affected products

  • gzip / gzip

References

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

Query CVEs from your AI assistant

The CVE/NVD Explorer brain answers CVE questions directly inside Claude, ChatGPT, or any MCP assistant — always up to date, no setup. Add it once and stop pasting advisories into chat.

Add the CVE brain