CVE-2004-1595: Buffer overflow in ShixxNote 6.net build 117 allows remote attackers to execute arbitrary code via a long font

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HIGH 7.5DOWNGRADE

CVE-2004-1595 is a high-severity flaw (CVSS 7.5) affecting shixxnote. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Buffer overflow in ShixxNote 6.net build 117 allows remote attackers to execute arbitrary code via a long font field.

Why this priority

High severity
EPSS top 1%: very likely to be exploited
Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	59.3% (top 1%)
CISA exploited list	No
Published	2004-10-13
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: shixxnote

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

Am I affected?

Timeline

2004-10-13 04:00 UTCPublished CVE record published
2026-06-16 22:08 UTCUpdated Record last modified

shixxnote shixxnote DOWNGRADE

Affected: 6.net

Fixed in: no fixed release known

Safe to downgrade to: a release before 6.net

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 6.net (Debian / Ubuntu)

apt-cache madison shixxnote sudo apt install shixxnote=<VERSION_BEFORE_6.net> sudo apt-mark hold shixxnote

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list shixxnote sudo dnf downgrade shixxnote-<VERSION_BEFORE_6.net> sudo dnf versionlock add shixxnote

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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: ShixxNOTE 6.net - Font Field Overflow (Metasploit)
Exploit-DB: ShixxNOTE 6.net - Remote Buffer Overflow
Metasploit: ShixxNOTE 6.net Font Field 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-2004-1595?

shixxnote: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2004-1595 being exploited?

CVE-2004-1595 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-2004-1595 affect?

CVE-2004-1595 affects shixxnote. Severity is high (CVSS 7.5). Buffer overflow in ShixxNote 6.net build 117 allows remote attackers to execute arbitrary code via a long font field.

How urgent is CVE-2004-1595?

Priority 56/100. High severity; EPSS top 1%: very likely to be exploited; Public exploit reference

References

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