CVE-2000-0552: ICQwebmail client for ICQ 2000A creates a world readable temporary file during login and does not delete it, w

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MEDIUM 5.5DOWNGRADE

CVE-2000-0552 is a medium-severity flaw (CVSS 5.5) affecting icq. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

ICQwebmail client for ICQ 2000A creates a world readable temporary file during login and does not delete it, which allows local users to obtain sensitive information.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	5.5 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	1.1% (top 34%)
CISA exploited list	No
Weakness	CWE-459
Published	2000-06-06
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: icq

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

Am I affected?

Timeline

2000-06-06 04:00 UTCPublished CVE record published
2026-06-16 21:51 UTCUpdated Record last modified

icq icq DOWNGRADE

Affected: 2000a

Fixed in: no fixed release known

Safe to downgrade to: a release before 2000a

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 2000a (Debian / Ubuntu)

apt-cache madison icq sudo apt install icq=<VERSION_BEFORE_2000a> sudo apt-mark hold icq

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

dnf --showduplicates list icq sudo dnf downgrade icq-<VERSION_BEFORE_2000a> sudo dnf versionlock add icq

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: Mirabilis ICQ 2000.0 A - Mailclient Temporary Link

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-2000-0552?

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

Is CVE-2000-0552 being exploited?

CVE-2000-0552 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-2000-0552 affect?

CVE-2000-0552 affects icq. Severity is medium (CVSS 5.5). ICQwebmail client for ICQ 2000A creates a world readable temporary file during login and does not delete it, which allows local users to obtain sensitive information.

How urgent is CVE-2000-0552?

Priority 41/100. Public exploit reference

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References

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