CVE-2020-10730

high

Published — · Modified —

CVSS v3

—

CVSS v2

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VIR risk

8.0

Description

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.

Predictions

Exploit likelihood

20%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2020-10730

vendor Authored 2026-05-27

Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2020-10730.html

OS impact

OS	Version	Status	Fixed in
arch		fixed	`4.12.6-1`
sles		affected
debian	bullseye	fixed	`2:2.1.4-1`
debian	bookworm	fixed	`2:4.12.5+dfsg-1`
debian	forky	fixed	`2:4.12.5+dfsg-1`
debian	sid	fixed	`2:4.12.5+dfsg-1`
debian	trixie	fixed	`2:4.12.5+dfsg-1`

References

Verify integrity in audit chain (admin only). AS-IS.