CVE-2002-1362: mICQ 0.4.9 and earlier allows remote attackers to cause a denial of service (crash) via malformed ICQ message

Routine

MEDIUM 5.0DOWNGRADE

CVE-2002-1362 is a medium-severity flaw (CVSS 5.0) affecting micq. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

mICQ 0.4.9 and earlier allows remote attackers to cause a denial of service (crash) via malformed ICQ message types without a 0xFE separator character.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	1.7% (top 23%)
CISA exploited list	No
Published	2002-12-23
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: matthew smith

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

Am I affected?

Timeline

2002-12-23 05:00 UTCPublished CVE record published
2026-06-16 21:59 UTCUpdated Record last modified

matthew smith micq DOWNGRADE

Affected: 0.4.3 · 0.4.6 · 0.4.9 · 0.4.9.2b · 0.4.9.3 · 0.4.9.4

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.4.3

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 0.4.3 (Debian / Ubuntu)

apt-cache madison micq sudo apt install micq=<VERSION_BEFORE_0.4.3> sudo apt-mark hold micq

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

dnf --showduplicates list micq sudo dnf downgrade micq-<VERSION_BEFORE_0.4.3> sudo dnf versionlock add micq

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-2002-1362?

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

Is CVE-2002-1362 being exploited?

CVE-2002-1362 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-2002-1362 affect?

CVE-2002-1362 affects micq. Severity is medium (CVSS 5.0). mICQ 0.4.9 and earlier allows remote attackers to cause a denial of service (crash) via malformed ICQ message types without a 0xFE separator character.

How urgent is CVE-2002-1362?

Priority 37/100. No elevated risk signals yet.

Related CVEs

CVE-2001-0233 HIGH 10.0 UPGRADE MITIGATE Buffer overflow in micq client 0.4.6 and earlier allows remote attackers to cause a denial of service, and pos

References

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