CVE-2006-4024: The FESTAHES_Load function in pce/hes.c in Festalon 0.5.0 through 0.5.5 allows user-assisted attackers to caus

Q: How do I fix CVE-2006-4024?

festalon: upgrade to newer than 0.5.5. Exact commands for each OS are on this page.

Q: Is CVE-2006-4024 being exploited?

CVE-2006-4024 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-2006-4024 affect?

CVE-2006-4024 affects festalon. Severity is high (CVSS 7.5). The FESTAHES_Load function in pce/hes.c in Festalon 0.5.0 through 0.5.5 allows user-assisted attackers to cause a denial of service (crash) and possibly execute arbitrary code via a negative LoadAddr value in a HES file, which is used as an

Q: How urgent is CVE-2006-4024?

Priority 54/100. High severity; EPSS top 8%: very likely to be exploited; Public exploit reference

This month

HIGH 7.5UPGRADE

CVE-2006-4024 is a high-severity flaw (CVSS 7.5) affecting festalon. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The FESTAHES_Load function in pce/hes.c in Festalon 0.5.0 through 0.5.5 allows user-assisted attackers to cause a denial of service (crash) and possibly execute arbitrary code via a negative LoadAddr value in a HES file, which is used as an offset in a memcpy operation and leads to a buffer underflow.

Why this priority

High severity
EPSS top 8%: very likely to be exploited
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	5.1% (top 8%)
CISA exploited list	No
Published	2006-08-09
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: festalon

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

Am I affected?

Timeline

2006-08-09 00:04 UTCPublished CVE record published
2026-06-16 22:28 UTCUpdated Record last modified

festalon festalon UPGRADE

Affected: <= 0.5.5 · 0.5.0

Fixed in: newer than 0.5.5

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 0.5.5 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade festalon

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: Festalon 0.5 - '.HES' Remote Heap 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-2006-4024?

festalon: upgrade to newer than 0.5.5. Exact commands for each OS are on this page.

Is CVE-2006-4024 being exploited?

CVE-2006-4024 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-2006-4024 affect?

CVE-2006-4024 affects festalon. Severity is high (CVSS 7.5). The FESTAHES_Load function in pce/hes.c in Festalon 0.5.0 through 0.5.5 allows user-assisted attackers to cause a denial of service (crash) and possibly execute arbitrary code via a negative LoadAddr value in a HES file, which is used as an

How urgent is CVE-2006-4024?

Priority 54/100. High severity; EPSS top 8%: very likely to be exploited; Public exploit reference

References

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