CVE-2002-1773: Buffer overflow in ICQ 2.6x for MacOS X 10.0 through 10.1.2 allows remote attackers to cause a denial of servi

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HIGH 7.5DOWNGRADE

CVE-2002-1773 is a high-severity flaw (CVSS 7.5) affecting icq for macos x. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Buffer overflow in ICQ 2.6x for MacOS X 10.0 through 10.1.2 allows remote attackers to cause a denial of service and possibly execute arbitrary code via a long request.

Why this priority

High severity
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	7.5 (High)
EPSS exploit chance	5.5% (top 7%)
CISA exploited list	No
Published	2002-12-31
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: mirabilis

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 21:59 UTCUpdated Record last modified

mirabilis icq for macos x DOWNGRADE

Affected: 2.6_x_beta

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.6_x_beta

1. Check installed version

apt-cache policy icq-for-macos-x || rpm -q icq-for-macos-x || icq-for-macos-x --version

2. No fixed release: DOWNGRADE to a release before 2.6_x_beta (Debian / Ubuntu)

apt-cache madison icq-for-macos-x sudo apt install icq-for-macos-x=<VERSION_BEFORE_2.6_x_beta> sudo apt-mark hold icq-for-macos-x

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

dnf --showduplicates list icq-for-macos-x sudo dnf downgrade icq-for-macos-x-<VERSION_BEFORE_2.6_x_beta> sudo dnf versionlock add icq-for-macos-x

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: ICQ For Mac OSX 2.6 Client - Denial of Service

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-2002-1773?

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

Is CVE-2002-1773 being exploited?

CVE-2002-1773 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-2002-1773 affect?

CVE-2002-1773 affects icq for macos x. Severity is high (CVSS 7.5). Buffer overflow in ICQ 2.6x for MacOS X 10.0 through 10.1.2 allows remote attackers to cause a denial of service and possibly execute arbitrary code via a long request.

How urgent is CVE-2002-1773?

Priority 54/100. High severity; EPSS top 7%: very likely to be exploited; Public exploit reference

Software pages

macOS vulnerabilities

References

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