How severe is CVE-2002-1203?

CVE-2002-1203 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2002-1203 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2002-1203?

CVE-2002-1203 primarily affects Ibm Secureway Firewall. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2002-1203?

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

When was CVE-2002-1203 published?

CVE-2002-1203 was published on 2002-10-28 and last updated on 2026-06-16.

CVE-2002-1203

CVE-2002-1203 is a medium-severity vulnerability in Ibm Secureway Firewall 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. The underlying weakness is classified as CWE-399.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 2% (74th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-399
Affected product: Ibm Secureway Firewall
Published: 2002-10-28
Last modified: 2026-06-16

Description

IBM SecureWay Firewall before 4.2.2 performs extra processing before determining that a packet is invalid and dropping it, which allows remote attackers to cause a denial of service (resource exhaustion) via a flood of malformed TCP packets without any flags set.

Frequently asked questions

What is CVE-2002-1203?: IBM SecureWay Firewall before 4.2.2 performs extra processing before determining that a packet is invalid and dropping it, which allows remote attackers to cause a denial of service (resource exhaustion) via a flood of malformed TCP packets without any flags set.
How severe is CVE-2002-1203?: CVE-2002-1203 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2002-1203 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2002-1203?: CVE-2002-1203 primarily affects Ibm Secureway Firewall. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2002-1203?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2002-1203 published?: CVE-2002-1203 was published on 2002-10-28 and last updated on 2026-06-16.

References

Affected products (2)

cpe:2.3:a:ibm:secureway_firewall:4.2:*:*:*:*:*:*:*
cpe:2.3:a:ibm:secureway_firewall:4.2.1:*:*:*:*:*:*:*

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