Buffer overflow in Red Hat Directory Server 11

CVE-2026-78701

A flaw was found in 389-ds-base. A remote, authenticated attacker could exploit a vulnerability in the Simple Authentication and Security Layer (SASL) UNBIND process. By sending a specially crafted request, the attacker can cause a connection to stall, leading to resource exhaustion and a Denial of Service (DoS) for the server.

Vulnerability class: Buffer Overflow

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-78701?
CVE-2026-78701 is a medium-severity vulnerability in Red Hat Directory Server 11, classified under Out-of-bounds Write. CVSS score: 6.5/10. Published 2026-08-25.
How severe is CVE-2026-78701?
Medium severity. CVSS v3 base score is 6.5 out of 10.