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Vulnerability details: VCID-as1n-ft13-h3bx
Vulnerability ID VCID-as1n-ft13-h3bx
Aliases CVE-2020-10730
Summary A NULL pointer dereference, or possible use-after-free flaw was found in Samba AD LDAP server in versions before 4.10.17, before 4.11.11 and before 4.12.4. Although some versions of Samba shipped with Red Hat Enterprise Linux do not support Samba in AD mode, the affected code is shipped with the libldb package. This flaw allows an authenticated user to possibly trigger a use-after-free or NULL pointer dereference. The highest threat from this vulnerability is to system availability.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (2)
CWE-476 NULL Pointer Dereference
CWE-416 Use After Free
System Score Found at
cvssv3 6.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-10730.json
epss 0.02758 https://api.first.org/data/v1/epss?cve=CVE-2020-10730
epss 0.02758 https://api.first.org/data/v1/epss?cve=CVE-2020-10730
epss 0.02758 https://api.first.org/data/v1/epss?cve=CVE-2020-10730
epss 0.02758 https://api.first.org/data/v1/epss?cve=CVE-2020-10730
epss 0.02758 https://api.first.org/data/v1/epss?cve=CVE-2020-10730
epss 0.02758 https://api.first.org/data/v1/epss?cve=CVE-2020-10730
epss 0.02758 https://api.first.org/data/v1/epss?cve=CVE-2020-10730
epss 0.02758 https://api.first.org/data/v1/epss?cve=CVE-2020-10730
epss 0.02758 https://api.first.org/data/v1/epss?cve=CVE-2020-10730
epss 0.02758 https://api.first.org/data/v1/epss?cve=CVE-2020-10730
epss 0.02758 https://api.first.org/data/v1/epss?cve=CVE-2020-10730
epss 0.02758 https://api.first.org/data/v1/epss?cve=CVE-2020-10730
epss 0.02758 https://api.first.org/data/v1/epss?cve=CVE-2020-10730
epss 0.02758 https://api.first.org/data/v1/epss?cve=CVE-2020-10730
epss 0.02758 https://api.first.org/data/v1/epss?cve=CVE-2020-10730
epss 0.02758 https://api.first.org/data/v1/epss?cve=CVE-2020-10730
epss 0.02758 https://api.first.org/data/v1/epss?cve=CVE-2020-10730
epss 0.02758 https://api.first.org/data/v1/epss?cve=CVE-2020-10730
epss 0.02758 https://api.first.org/data/v1/epss?cve=CVE-2020-10730
epss 0.02758 https://api.first.org/data/v1/epss?cve=CVE-2020-10730
epss 0.02758 https://api.first.org/data/v1/epss?cve=CVE-2020-10730
cvssv3.1 6.5 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv2 4.0 https://nvd.nist.gov/vuln/detail/CVE-2020-10730
cvssv3.1 6.5 https://nvd.nist.gov/vuln/detail/CVE-2020-10730
archlinux High https://security.archlinux.org/AVG-1202
Reference id Reference type URL
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00030.html
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00054.html
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00000.html
http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00002.html
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-10730.json
https://api.first.org/data/v1/epss?cve=CVE-2020-10730
https://bugzilla.redhat.com/show_bug.cgi?id=1849489%3B
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-10730
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27840
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20277
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6YLNQ5GRXUKYRUAOFZ4DUBVN4SMTL6Q2/
https://security.gentoo.org/glsa/202007-15
https://www.debian.org/security/2021/dsa-4884
https://www.samba.org/samba/security/CVE-2020-10730.html
1849489 https://bugzilla.redhat.com/show_bug.cgi?id=1849489
AVG-1202 https://security.archlinux.org/AVG-1202
cpe:2.3:a:redhat:storage:3.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:redhat:storage:3.0:*:*:*:*:*:*:*
cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*
CVE-2020-10730 https://nvd.nist.gov/vuln/detail/CVE-2020-10730
RHSA-2020:3118 https://access.redhat.com/errata/RHSA-2020:3118
RHSA-2020:3119 https://access.redhat.com/errata/RHSA-2020:3119
RHSA-2020:4568 https://access.redhat.com/errata/RHSA-2020:4568
USN-4409-1 https://usn.ubuntu.com/4409-1/
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-10730.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: AV:N/AC:L/Au:S/C:N/I:N/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2020-10730
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2020-10730
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.85443
EPSS Score 0.02758
Published At Aug. 15, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:42:49.017295+00:00 Ubuntu USN Importer Import https://usn.ubuntu.com/4409-1/ 37.0.0