CVE-2005-0501: Buffer overflow in Bontago 1.1 and earlier allows remote attackers to execute arbitrary code via a long nickna

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HIGH 7.5DOWNGRADE

CVE-2005-0501 is a high-severity flaw (CVSS 7.5) affecting bontago. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Buffer overflow in Bontago 1.1 and earlier allows remote attackers to execute arbitrary code via a long nickname.

Why this priority

High severity
EPSS top 10%: 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	3.8% (top 10%)
CISA exploited list	No
Published	2005-05-02
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: digipen institute of technology

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

Am I affected?

Timeline

2005-05-02 04:00 UTCPublished CVE record published
2026-06-16 22:11 UTCUpdated Record last modified

digipen institute of technology bontago DOWNGRADE

Affected: 1.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.1

1. Check installed version

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

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

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

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

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

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-2005-0501?

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

Is CVE-2005-0501 being exploited?

CVE-2005-0501 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-2005-0501 affect?

CVE-2005-0501 affects bontago. Severity is high (CVSS 7.5). Buffer overflow in Bontago 1.1 and earlier allows remote attackers to execute arbitrary code via a long nickname.

How urgent is CVE-2005-0501?

Priority 54/100. High severity; EPSS top 10%: very likely to be exploited; Public exploit reference

References

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