CVE-2004-1456: filediff in CVStrac allows remote attackers to execute arbitrary commands via shell metacharacters in rcsinfo.

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HIGH 7.5DOWNGRADE

CVE-2004-1456 is a high-severity flaw (CVSS 7.5) affecting cvstrac. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

filediff in CVStrac allows remote attackers to execute arbitrary commands via shell metacharacters in rcsinfo.

Why this priority

High severity
EPSS top 3%: 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	14.0% (top 3%)
CISA exploited list	No
Published	2004-12-31
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: cvstrac

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

Am I affected?

Timeline

2004-12-31 05:00 UTCPublished CVE record published
2026-06-16 22:07 UTCUpdated Record last modified

cvstrac cvstrac DOWNGRADE

Affected: 1.1 · 1.1.1 · 1.1.2 · 1.1.3

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.1

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.1 (Debian / Ubuntu)

apt-cache madison cvstrac sudo apt install cvstrac=<VERSION_BEFORE_1.1> sudo apt-mark hold cvstrac

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

dnf --showduplicates list cvstrac sudo dnf downgrade cvstrac-<VERSION_BEFORE_1.1> sudo dnf versionlock add cvstrac

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: CVSTrac - Arbitrary Code Execution

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-2004-1456?

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

Is CVE-2004-1456 being exploited?

CVE-2004-1456 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-2004-1456 affect?

CVE-2004-1456 affects cvstrac. Severity is high (CVSS 7.5). filediff in CVStrac allows remote attackers to execute arbitrary commands via shell metacharacters in rcsinfo.

How urgent is CVE-2004-1456?

Priority 55/100. High severity; EPSS top 3%: very likely to be exploited; Public exploit reference

Related CVEs

CVE-2007-0347 MEDIUM 4.3 UPGRADE The is_eow function in format.c in CVSTrac before 2.0.1 does not properly check for the "'" (quote) character,
CVE-2004-1146 MEDIUM 4.3 DOWNGRADE Multiple cross-site scripting (XSS) vulnerabilities in (1) main.c and (2) login.c for CVSTrac before 1.1.5 all

References

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