CVE-2002-2023: The get_parameter_from_freqency_source function in beep2 1.0, 1.1 and 1.2, when installed setuid root, allows

Routine

LOW 2.1DOWNGRADE

CVE-2002-2023 is a low-severity flaw (CVSS 2.1) affecting shingo beep2. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The get_parameter_from_freqency_source function in beep2 1.0, 1.1 and 1.2, when installed setuid root, allows local users to read arbitrary files via unknown attack vectors.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	2.1 (Low)
EPSS exploit chance	0.3% (top 75%)
CISA exploited list	No
Published	2002-12-31
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: yamaguchi

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

Am I affected?

Timeline

2002-12-31 05:00 UTCPublished CVE record published
2026-06-16 22:00 UTCUpdated Record last modified

yamaguchi shingo beep2 DOWNGRADE

Affected: 1.0 · 1.0a · 1.1 · 1.2

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0

1. Check installed version

apt-cache policy shingo-beep2 || rpm -q shingo-beep2 || shingo-beep2 --version

2. No fixed release: DOWNGRADE to a release before 1.0 (Debian / Ubuntu)

apt-cache madison shingo-beep2 sudo apt install shingo-beep2=<VERSION_BEFORE_1.0> sudo apt-mark hold shingo-beep2

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

dnf --showduplicates list shingo-beep2 sudo dnf downgrade shingo-beep2-<VERSION_BEFORE_1.0> sudo dnf versionlock add shingo-beep2

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.

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-2002-2023?

shingo beep2: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2002-2023 being exploited?

CVE-2002-2023 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-2002-2023 affect?

CVE-2002-2023 affects shingo beep2. Severity is low (CVSS 2.1). The get_parameter_from_freqency_source function in beep2 1.0, 1.1 and 1.2, when installed setuid root, allows local users to read arbitrary files via unknown attack vectors.

How urgent is CVE-2002-2023?

Priority 14/100. No elevated risk signals yet.

References

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