CVE-2002-2182: Buffer overflow in Seunghyun Seo's MSN666 MSN Sniffer 1.0 and 1.0.1 allows remote attackers to execute arbitra

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MEDIUM 6.4DOWNGRADE

CVE-2002-2182 is a medium-severity flaw (CVSS 6.4) affecting msn666. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Buffer overflow in Seunghyun Seo's MSN666 MSN Sniffer 1.0 and 1.0.1 allows remote attackers to execute arbitrary code via a long MSN packet.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	6.4 (Medium)
EPSS exploit chance	3.2% (top 12%)
CISA exploited list	No
Published	2002-12-31
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: seunghyun seo

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

seunghyun seo msn666 DOWNGRADE

Affected: 1.0 · 1.0.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0

1. Check installed version

apt-cache policy msn666 || rpm -q msn666 || msn666 --version

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

apt-cache madison msn666 sudo apt install msn666=<VERSION_BEFORE_1.0> sudo apt-mark hold msn666

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

dnf --showduplicates list msn666 sudo dnf downgrade msn666-<VERSION_BEFORE_1.0> sudo dnf versionlock add msn666

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-2002-2182?

msn666: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2002-2182 being exploited?

CVE-2002-2182 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-2002-2182 affect?

CVE-2002-2182 affects msn666. Severity is medium (CVSS 6.4). Buffer overflow in Seunghyun Seo's MSN666 MSN Sniffer 1.0 and 1.0.1 allows remote attackers to execute arbitrary code via a long MSN packet.

How urgent is CVE-2002-2182?

Priority 44/100. No elevated risk signals yet.

References

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