CVE-2026-11884
MEDIUM
MEDIUM
Priority: 0.02
BB Relevance:
58/100
Published: 2026-06-10
Modified: 2026-11-05
First seen: 2026-11-05
Status: active
Attack Surface
Network
Low Complexity
No Interaction
Integ. Impact
CVSS Vector Breakdown
AV:
Network
AC:
Low
PR:
High
UI:
None
S:
Unchanged
C:
None
I:
High
A:
High
Description
A heap buffer overflow flaw was found in 389 Directory Server. When serializing objectclass definitions, the oc_superior (SUP) field length is omitted from buffer size calculations in read_schema_dse() and schema_oc_to_string(), but the field is still written via strcat(). An attacker with Directory Manager privileges, or a compromised replication supplier, can trigger a server crash by creating objectclasses with long SUP values. This is an incomplete fix variant of CVE-2025-14905.
Weakness Classification (1)
References & Advisories (3)
vdb-entry
x_refsource_REDHAT
issue-tracking
x_refsource_REDHAT