How severe is CVE-2000-0203?

CVE-2000-0203 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2000-0203 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2000-0203?

CVE-2000-0203 affects Trend Micro Officescan. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2000-0203?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2000-0203 published?

CVE-2000-0203 was published on 2000-02-28 and last updated on 2026-06-16.

CVE-2000-0203

CVE-2000-0203 is a medium-severity vulnerability in Trend Micro Officescan with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 2% (76th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Trend Micro Officescan
Published: 2000-02-28
Last modified: 2026-06-16

Description

The Trend Micro OfficeScan client tmlisten.exe allows remote attackers to cause a denial of service via malformed data to port 12345.

Frequently asked questions

What is CVE-2000-0203?: The Trend Micro OfficeScan client tmlisten.exe allows remote attackers to cause a denial of service via malformed data to port 12345.
How severe is CVE-2000-0203?: CVE-2000-0203 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2000-0203 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2000-0203?: CVE-2000-0203 affects Trend Micro Officescan. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2000-0203?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2000-0203 published?: CVE-2000-0203 was published on 2000-02-28 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:trend_micro:officescan:3.5:*:*:*:*:*:*:*

More vulnerabilities in Trend Micro Officescan

CVE-2008-3865 — Critical (CVSS 10.0): Multiple heap-based buffer overflows in the ApiThread function in the firewall service (aka TmPfw.exe) in Trend Micro…
CVE-2008-3862 — Critical (CVSS 10.0): Stack-based buffer overflow in CGI programs in the server in Trend Micro OfficeScan 7.3 Patch 4 build 1367 and other…
CVE-2008-4402 — Critical (CVSS 10.0): Multiple buffer overflows in CGI modules in the server in Trend Micro OfficeScan 8.0 SP1 before build 2439 and 8.0 SP1…
CVE-2008-2437 — Critical (CVSS 10.0): Stack-based buffer overflow in cgiRecvFile.exe in Trend Micro OfficeScan 7.3 patch 4 build 1362 and other builds,…
CVE-2007-3454 — Critical (CVSS 10.0): Stack-based buffer overflow in CGIOCommon.dll before 8.0.0.1042 in Trend Micro OfficeScan Corporate Edition 8.0 allows…
CVE-2007-3455 — Critical (CVSS 10.0): cgiChkMasterPwd.exe before 8.0.0.142 in Trend Micro OfficeScan Corporate Edition 8.0 allows remote attackers to bypass…

All CVEs affecting Trend Micro Officescan →