CVE-2004-1256: Multiple buffer overflows in the (1) event_text and (2) event_specific functions in abc2midi 2004.12.04 allow

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HIGH 10.0DOWNGRADE

CVE-2004-1256 is a high-severity flaw (CVSS 10.0) affecting abcmidi. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Multiple buffer overflows in the (1) event_text and (2) event_specific functions in abc2midi 2004.12.04 allow remote attackers to execute arbitrary code via crafted ABC files.

Why this priority

Critical severity
EPSS top 4%: very likely to be exploited
Public exploit reference

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

Risk facts

CVSS score	10.0 (High)
EPSS exploit chance	10.4% (top 4%)
CISA exploited list	No
Published	2005-01-10
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: abcmidi

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

Am I affected?

Timeline

2005-01-10 05:00 UTCPublished CVE record published
2026-06-16 22:07 UTCUpdated Record last modified

abcmidi abcmidi DOWNGRADE

Affected: 2004-12-04

Fixed in: no fixed release known

Safe to downgrade to: a release before 2004-12-04

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 2004-12-04 (Debian / Ubuntu)

apt-cache madison abcmidi sudo apt install abcmidi=<VERSION_BEFORE_2004-12-04> sudo apt-mark hold abcmidi

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

dnf --showduplicates list abcmidi sudo dnf downgrade abcmidi-<VERSION_BEFORE_2004-12-04> sudo dnf versionlock add abcmidi

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: ABC2MIDI 2004-12-04 - Multiple Stack Buffer Overflow Vulnerabilities

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-2004-1256?

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

Is CVE-2004-1256 being exploited?

CVE-2004-1256 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-2004-1256 affect?

CVE-2004-1256 affects abcmidi. Severity is high (CVSS 10.0). Multiple buffer overflows in the (1) event_text and (2) event_specific functions in abc2midi 2004.12.04 allow remote attackers to execute arbitrary code via crafted ABC files.

How urgent is CVE-2004-1256?

Priority 64/100. Critical severity; EPSS top 4%: very likely to be exploited; Public exploit reference

Related CVEs

CVE-2006-1514 HIGH 7.5 UPGRADE Multiple buffer overflows in the abcmidi-yaps translator in abcmidi 20050101, and other versions, allow remote

References

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