CVE-2026-11788
highpriority · track · 30EPSS 0.006 · 47 %ileDEEUUSEPSS · scored 2026-10-27
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5.9–7.5
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (34)
Products and version ranges known to be affected.
- Red Hat Enterprise Linux 10.0 Extended Update Supportall versionscert_bundDEcpe:/o:redhat:enterprise_linux:10.0_extended_update_support
- Red Hat Enterprise Linux 9.2 Update Services for SAP Solutionsall versionscert_bundDEcpe:/o:redhat:enterprise_linux:9.2_update_services_for_sap_solutions
- Red Hat Enterprise Linux 9.4 Update Services for SAP Solutionall versionscert_bundDEcpe:/o:redhat:enterprise_linux:9.4_update_services_for_sap_solution
- Red Hat Enterprise Linux 9.6 Extended Update Supportall versionscert_bundDEcpe:/o:redhat:enterprise_linux:9.6_extended_update_support
- Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support< 8040020260803141511.96015a92enisa_euvdEU
- Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On< 8040020260803141511.96015a92enisa_euvdEU
- Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support< 8060020260806120442.824efc52enisa_euvdEU
- Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On< 8060020260806120442.824efc52enisa_euvdEU
advisories (1)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2026-2854Red Hat Enterprise Linux (389-ds-base): Mehrere SchwachstellenDeutsch2026-08-16csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Red Hat Enterprise Linux ausnutzen, um Informationen offenzulegen und um einen Denial-of-Service-Zustand zu verursachen.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (35)
External citations — patches, advisories, analysis.
- https://access.redhat.com/security/cve/CVE-2026-11788cnnvd
- https://access.redhat.com/security/cve/CVE-2026-11788,https://bugzilla.redhat.com/show_bug.cgi?id=2485423Patchcnnvd
- https://bugzilla.redhat.com/show_bug.cgi?id=2485423cnnvd
- https://redhat.atlassian.net/browse/PSIRTSUPT-7600cnnvd
- https://access.redhat.com/errata/RHSA-2026:55421enisa_euvd
- https://access.redhat.com/errata/RHSA-2026:55422enisa_euvd
- https://access.redhat.com/errata/RHSA-2026:55423enisa_euvd
- https://access.redhat.com/errata/RHSA-2026:55424enisa_euvd
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