CVE-2002-1351: Buffer overflow in Melange Chat System 1.10 allows remote attackers to cause a denial of service (chat server

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MEDIUM 5.0DOWNGRADE

CVE-2002-1351 is a medium-severity flaw (CVSS 5.0) affecting melange chat system. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Buffer overflow in Melange Chat System 1.10 allows remote attackers to cause a denial of service (chat server crash) and possibly execute arbitrary code via the msgText buffer in the chat_InterpretData function, as demonstrated via a long Nick (nickname) request.

Why this priority

EPSS top 7%: very likely to be exploited
Public exploit reference

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

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	5.8% (top 7%)
CISA exploited list	No
Published	2002-12-24
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: melange

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

Am I affected?

Timeline

2002-12-24 05:00 UTCPublished CVE record published
2026-06-16 21:59 UTCUpdated Record last modified

melange melange chat system DOWNGRADE

Affected: 1.10

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.10

1. Check installed version

apt-cache policy melange-chat-system || rpm -q melange-chat-system || melange-chat-system --version

2. No fixed release: DOWNGRADE to a release before 1.10 (Debian / Ubuntu)

apt-cache madison melange-chat-system sudo apt install melange-chat-system=<VERSION_BEFORE_1.10> sudo apt-mark hold melange-chat-system

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

dnf --showduplicates list melange-chat-system sudo dnf downgrade melange-chat-system-<VERSION_BEFORE_1.10> sudo dnf versionlock add melange-chat-system

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: Melange Chat Server 1.10 - Remote Buffer Overflow

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-2002-1351?

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

Is CVE-2002-1351 being exploited?

CVE-2002-1351 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-2002-1351 affect?

CVE-2002-1351 affects melange chat system. Severity is medium (CVSS 5.0). Buffer overflow in Melange Chat System 1.10 allows remote attackers to cause a denial of service (chat server crash) and possibly execute arbitrary code via the msgText buffer in the chat_InterpretData function, as demonstrated via a long N

How urgent is CVE-2002-1351?

Priority 46/100. EPSS top 7%: very likely to be exploited; Public exploit reference

Related CVEs

CVE-2006-0917 LOW 2.1 DOWNGRADE Melange Chat Server (aka M-Chat), when accessed via a web browser, automatically sends cookies and other sensi
CVE-2002-0552 HIGH 7.5 DOWNGRADE Multiple buffer overflows in Melange Chat server 2.02 allow remote or local attackers to cause a denial of ser

References

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