Buffer overflow in IBM Sterling Connect Direct For Unix

CVE-2026-93888

IBM Sterling Connect Direct for Unix 6.4.0.0 through 6.4.0.6 and 6.3.0.0 through 6.3.0.7 apnotify utility is vulnerable to a code injection due to insufficient validation of user input.

Vulnerability class: Buffer Overflow

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-93888?
CVE-2026-93888 is a high-severity vulnerability in IBM Sterling Connect Direct For Unix, classified under Stack-based Buffer Overflow. CVSS score: 7.8/10. Published 2026-10-20.
How severe is CVE-2026-93888?
High severity. CVSS v3 base score is 7.8 out of 10.