CVE-2005-0693: Buffer overflow in JoWood Chaser 1.50 and earlier allows remote attackers to cause a denial of service (client

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HIGH 7.5DOWNGRADE

CVE-2005-0693 is a high-severity flaw (CVSS 7.5) affecting chaser. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Buffer overflow in JoWood Chaser 1.50 and earlier allows remote attackers to cause a denial of service (client or server crash) and execute arbitrary code via a long nickname.

Why this priority

High severity
Public exploit reference

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

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	3.1% (top 12%)
CISA exploited list	No
Published	2005-03-07
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: jowood productions

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

Am I affected?

Timeline

2005-03-07 05:00 UTCPublished CVE record published
2026-06-16 22:11 UTCUpdated Record last modified

jowood productions chaser DOWNGRADE

Affected: 1.0 · 1.50

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0

1. Check installed version

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

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

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

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

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

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-2005-0693?

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

Is CVE-2005-0693 being exploited?

CVE-2005-0693 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-2005-0693 affect?

CVE-2005-0693 affects chaser. Severity is high (CVSS 7.5). Buffer overflow in JoWood Chaser 1.50 and earlier allows remote attackers to cause a denial of service (client or server crash) and execute arbitrary code via a long nickname.

How urgent is CVE-2005-0693?

Priority 53/100. High severity; Public exploit reference

References

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