Cyber Resilience

CVE-2026-11788

Medium

Published: 09 June 2026

Published
09 June 2026
Modified
12 June 2026
KEV Added
—
Patch
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CVSS Score v3.1 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score 0.0041 32.2th percentile
Risk Priority 12 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2026-11788 is a medium-severity NULL Pointer Dereference (CWE-476) vulnerability in Redhat Enterprise Linux. Its CVSS base score is 5.9 (Medium).

Operationally, ranked at the 32.2th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

A flaw was found in 389 Directory Server. The dereference control plugin does not check for allocation failure before using a BER structure, allowing an unauthenticated remote attacker to crash the LDAP server when the system is under memory pressure.

CWE(s)
CWE-476

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

redhat
directory server
11.0, 12.0, 13.0
redhat
389 directory server
all versions
redhat
enterprise linux
10.0, 7.0, 8.0, 9.0

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References