CVE-2006-2439: Stack-based buffer overflow in ZipCentral 4.01 allows remote user-assisted attackers to execute arbitrary code

Q: How do I fix CVE-2006-2439?

zipcentral: upgrade to newer than 4.01. Exact commands for each OS are on this page.

Q: Is CVE-2006-2439 being exploited?

CVE-2006-2439 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2006-2439 affect?

CVE-2006-2439 affects zipcentral. Severity is high (CVSS 7.6). Stack-based buffer overflow in ZipCentral 4.01 allows remote user-assisted attackers to execute arbitrary code via a ZIP archive containing a long filename.

Q: How urgent is CVE-2006-2439?

Priority 55/100. High severity; EPSS top 6%: very likely to be exploited; Public exploit reference

This month

HIGH 7.6UPGRADE

CVE-2006-2439 is a high-severity flaw (CVSS 7.6) affecting zipcentral. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Stack-based buffer overflow in ZipCentral 4.01 allows remote user-assisted attackers to execute arbitrary code via a ZIP archive containing a long filename.

Why this priority

High severity
EPSS top 6%: very likely to be exploited
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	7.6 (High)
EPSS exploit chance	7.3% (top 6%)
CISA exploited list	No
Weakness	CWE-119
Published	2006-06-01
Last modified	2026-06-16

Publisher (CNA): Flexera Software LLC · Vendor: zipcentral

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2006-06-01 10:02 UTCPublished CVE record published
2026-06-16 22:25 UTCUpdated Record last modified

zipcentral zipcentral UPGRADE

Affected: <= 4.01

Fixed in: newer than 4.01

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy zipcentral || rpm -q zipcentral || zipcentral --version

2. UPGRADE to newer than 4.01 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade zipcentral

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade zipcentral

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: ZipCentral - '.zip' File (SEH)
Exploit-DB: ZipCentral - '.zip' Local Buffer Overflow (SEH)
Exploit-DB: ZipCentral 4.01 - '.ZIP' File Handling Local Buffer Overflow

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2006-2439?

zipcentral: upgrade to newer than 4.01. Exact commands for each OS are on this page.

Is CVE-2006-2439 being exploited?

CVE-2006-2439 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2006-2439 affect?

CVE-2006-2439 affects zipcentral. Severity is high (CVSS 7.6). Stack-based buffer overflow in ZipCentral 4.01 allows remote user-assisted attackers to execute arbitrary code via a ZIP archive containing a long filename.

How urgent is CVE-2006-2439?

Priority 55/100. High severity; EPSS top 6%: very likely to be exploited; Public exploit reference

References

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