CVE-1999-1289

CVE-1999-1289 is a high-severity vulnerability in Mirabilis Icq with a CVSS 2.0 base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

ICQ 98 beta on Windows NT leaks the internal IP address of a client in the TCP data segment of an ICQ packet instead of the public address (e.g. through NAT), which provides remote attackers with potentially sensitive information about the client or the internal network configuration.

Frequently asked questions

What is CVE-1999-1289?
ICQ 98 beta on Windows NT leaks the internal IP address of a client in the TCP data segment of an ICQ packet instead of the public address (e.g. through NAT), which provides remote attackers with potentially sensitive information about the client or the internal network configuration.
How severe is CVE-1999-1289?
CVE-1999-1289 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-1999-1289 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-1999-1289?
CVE-1999-1289 affects Mirabilis Icq. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-1999-1289?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-1999-1289 published?
CVE-1999-1289 was published on 1998-11-11 and last updated on 2026-06-16.

References

Affected products (1)

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