How severe is CVE-1999-1075?

CVE-1999-1075 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-1999-1075 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-1999-1075?

CVE-1999-1075 affects Ibm Aix. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-1999-1075?

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

When was CVE-1999-1075 published?

CVE-1999-1075 was published on 1998-03-18 and last updated on 2026-06-16.

CVE-1999-1075

CVE-1999-1075 is a medium-severity vulnerability in Ibm Aix 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: 1% (66th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Ibm Aix
Published: 1998-03-18
Last modified: 2026-06-16

Description

inetd in AIX 4.1.5 dynamically assigns a port N when starting ttdbserver (ToolTalk server), but also inadvertently listens on port N-1 without passing control to ttdbserver, which allows remote attackers to cause a denial of service via a large number of connections to port N-1, which are not properly closed by inetd.

Frequently asked questions

What is CVE-1999-1075?: inetd in AIX 4.1.5 dynamically assigns a port N when starting ttdbserver (ToolTalk server), but also inadvertently listens on port N-1 without passing control to ttdbserver, which allows remote attackers to cause a denial of service via a large number of connections to port N-1, which are not properly closed by inetd.
How severe is CVE-1999-1075?: CVE-1999-1075 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-1999-1075 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-1999-1075?: CVE-1999-1075 affects Ibm Aix. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-1999-1075?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-1999-1075 published?: CVE-1999-1075 was published on 1998-03-18 and last updated on 2026-06-16.

References

http://marc.info/?l=bugtraq&m=89025820612530&w=2

Affected products (1)

cpe:2.3:o:ibm:aix:4.1.5:*:*:*:*:*:*:*

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