CVE-2002-2198

CVE-2002-2198 is a critical-severity vulnerability in Zmailer with a CVSS 2.0 base score of 10.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

Buffer overflow in ZMailer before 2.99.51_1 allows remote attackers to execute arbitrary code during HELO processing from an IPv6 address, possibly using an address that resolves to a long hostname.

Frequently asked questions

What is CVE-2002-2198?
Buffer overflow in ZMailer before 2.99.51_1 allows remote attackers to execute arbitrary code during HELO processing from an IPv6 address, possibly using an address that resolves to a long hostname.
How severe is CVE-2002-2198?
CVE-2002-2198 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2002-2198 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2002-2198?
CVE-2002-2198 primarily affects Zmailer. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2002-2198?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2002-2198 published?
CVE-2002-2198 was published on 2002-12-31 and last updated on 2026-06-16.

References

Affected products (7)