01 Record

CVE-2019-12436

Samba 4.10.x before 4.10.5 has a NULL pointer dereference, leading to an AD DC LDAP server Denial of Service. This is related to an attacker using the paged search control. The attacker must have

UnratedPUBLISHEDCNA: mitre

CNA base scoreUnratedNo CNA CVSS vector

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02 Description

Samba 4.10.x before 4.10.5 has a NULL pointer dereference, leading to an AD DC LDAP server Denial of Service. This is related to an attacker using the paged search control. The attacker must have

03 Exploitation and scoring

Exploitation: Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision: Not assessed by CISA
EPSS probability: 2.79% probability of exploitation activity in the next 30 days.
EPSS percentile: Equal to or higher than the score of 86.0% of scored records. A rank, not a probability.
NVD base score: 6.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD analysis status: Modified. NVD last modified this record on 2026-06-17.
Red Hat severity: Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2019-06-19 12:00Z7 YR AGO

Last updated

2024-08-04 23:17Z2 YR AGO

Reserved

2019-05-28

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

CWE-476NULL Pointer DereferenceBase

Data version

5.1

Document digest

6c8539a3640229aff34c8acee4bb6c34f87bd0e6e554902b628148518d374db5

05 Affected products

VendorProductVersionsPlatforms

canonicalubuntu_linuxNot specified—

redhatenterprise_linuxNot specified—

redhatrhev_hypervisorNot specified—

redhatstorageNot specified—

sambasambaNot specified—

06 References

www.samba.orghttps://www.samba.org/samba/security/CVE-2019-12436.htmlx_refsource_CONFIRM
usn.ubuntu.comUSN-4018-1https://usn.ubuntu.com/4018-1/vendor-advisoryx_refsource_UBUNTU
www.securityfocus.com108823http://www.securityfocus.com/bid/108823vdb-entryx_refsource_BID
www.synology.comhttps://www.synology.com/security/advisory/Synology_SA_19_27x_refsource_CONFIRM
lists.fedoraproject.orgFEDORA-2019-8015e5dc40https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZQ3LCJNJ3ONHIRKDSKOTT6QGXALLCHVG/vendor-advisoryx_refsource_FEDORA