CVE-2026-11788 (GCVE-0-2026-11788)
Vulnerability from cvelistv5 – Published: 2026-06-09 13:02 – Updated: 2026-08-18 14:47
VLAI
EPSS
VEX
Title
389-ds-base: 389-ds-base: null pointer dereference in deref control plugin ber parser
Summary
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.
Severity
5.9 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-09 15:11 UTC
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
17 references
Impacted products
21 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Red Hat | Red Hat Directory Server 11.7 E4S for RHEL 8 |
Unaffected:
8080020260806114250.f969626e , < *
(rpm)
cpe:/a:redhat:directory_server_e4s:11.7::el8 |
||
| Red Hat | Red Hat Directory Server 11.9 for RHEL 8 |
Unaffected:
8100020260803140625.37ed7c03 , < *
(rpm)
cpe:/a:redhat:directory_server:11.9::el8 |
||
| Red Hat | Red Hat Directory Server 12.2 E4S for RHEL 9 |
Unaffected:
9020020260730155601.1674d574 , < *
(rpm)
cpe:/a:redhat:directory_server_e4s:12.2::el9 |
||
| Red Hat | Red Hat Directory Server 12.4 E4S for RHEL 9 |
Unaffected:
9040020260810131422.1674d574 , < *
(rpm)
cpe:/a:redhat:directory_server_e4s:12.4::el9 |
||
| Red Hat | Red Hat Enterprise Linux 10 |
Unaffected:
0:3.2.0-9.el10_2 , < *
(rpm)
cpe:/o:redhat:enterprise_linux:10.2 |
||
| Red Hat | Red Hat Enterprise Linux 10.0 Extended Update Support |
Unaffected:
0:3.0.6-20.el10_0 , < *
(rpm)
cpe:/o:redhat:enterprise_linux_eus:10.0 |
||
| Red Hat | Red Hat Enterprise Linux 7 Extended Lifecycle Support |
Unaffected:
0:1.3.11.1-14.el7_9 , < *
(rpm)
cpe:/o:redhat:rhel_els:7 |
||
| Red Hat | Red Hat Enterprise Linux 8 |
Unaffected:
8100020260806150504.25e700aa , < *
(rpm)
cpe:/a:redhat:enterprise_linux:8::appstream |
||
| Red Hat | Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support |
Unaffected:
8040020260803141511.96015a92 , < *
(rpm)
cpe:/a:redhat:rhel_aus:8.4::appstream cpe:/a:redhat:rhel_eus_long_life:8.4::appstream |
||
| Red Hat | Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On |
Unaffected:
8040020260803141511.96015a92 , < *
(rpm)
cpe:/a:redhat:rhel_aus:8.4::appstream cpe:/a:redhat:rhel_eus_long_life:8.4::appstream |
||
| Red Hat | Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support |
Unaffected:
8060020260806120442.824efc52 , < *
(rpm)
cpe:/a:redhat:rhel_aus:8.6::appstream cpe:/a:redhat:rhel_eus_long_life:8.6::appstream |
||
| Red Hat | Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On |
Unaffected:
8060020260806120442.824efc52 , < *
(rpm)
cpe:/a:redhat:rhel_aus:8.6::appstream cpe:/a:redhat:rhel_eus_long_life:8.6::appstream |
||
| Red Hat | Red Hat Enterprise Linux 8.8 Telecommunications Update Service |
Unaffected:
8080020260806114228.6dbb3803 , < *
(rpm)
cpe:/a:redhat:rhel_e4s:8.8::appstream cpe:/a:redhat:rhel_tus:8.8::appstream |
||
| Red Hat | Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions |
Unaffected:
8080020260806114228.6dbb3803 , < *
(rpm)
cpe:/a:redhat:rhel_e4s:8.8::appstream cpe:/a:redhat:rhel_tus:8.8::appstream |
||
| Red Hat | Red Hat Enterprise Linux 9 |
Unaffected:
0:2.8.0-9.el9_8 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:9::appstream cpe:/a:redhat:enterprise_linux:9::crb |
||
| Red Hat | Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions |
Unaffected:
0:2.2.4-20.el9_2 , < *
(rpm)
cpe:/a:redhat:rhel_e4s:9.2::appstream |
||
| Red Hat | Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions |
Unaffected:
0:2.4.5-27.el9_4 , < *
(rpm)
cpe:/a:redhat:rhel_e4s:9.4::appstream |
||
| Red Hat | Red Hat Enterprise Linux 9.6 Extended Update Support |
Unaffected:
0:2.6.1-23.el9_6 , < *
(rpm)
cpe:/a:redhat:rhel_eus:9.6::appstream cpe:/a:redhat:rhel_eus:9.6::crb |
||
| Red Hat | Red Hat Directory Server 12 |
cpe:/a:redhat:directory_server:12
|
||
| Red Hat | Red Hat Directory Server 13 |
cpe:/a:redhat:directory_server:13
|
||
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6
|
Date Public
2026-04-16 00:00
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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