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Fencer Vulns
medium 6.5

CVE-2020-10760 json

A use-after-free flaw was found in all samba LDAP server versions before 4.10.17, before 4.11.11, before 4.12.4 used in a AC DC configurati…

published 2020-07-06 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-3176

cvss
6.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.7%
EPSS 2.7% chance of exploitation in 30 days, percentile 85%
public exploits
0
none known

Summary

A use-after-free flaw was found in all samba LDAP server versions before 4.10.17, before 4.11.11, before 4.12.4 used in a AC DC configuration. A Samba LDAP user could use this flaw to crash samba.

Patch / fix

  • samba samba 4.10.17, 4.11.11, 4.12.4
  • samba Debian 14, Debian 13, Debian 12 2:4.12.5+dfsg-1

debian advisories DEBIAN-CVE-2020-10760

  • samba Ubuntu 18.04 LTS 2:4.7.6+dfsg~ubuntu-0ubuntu2.17
  • samba Ubuntu 20.04 LTS 2:4.11.6+dfsg-0ubuntu1.3

ubuntu advisories UBUNTU-CVE-2020-10760

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • samba SLES for SAP 12 SP5, SLES 12 SP5, SLE Software Development Kit 12 SP5 +1 more 4.10.17+git.203.862547088ca-3.14.1
  • ldb SLES for SAP 12 SP5, SLES 12 SP5, SLE Software Development Kit 12 SP5 1.5.8-3.5.1
  • samba SLE Module for Python 2 15 SP2, SLE Module for Basesystem 15 SP2, SLE High Availability Extension 15 SP2 4.11.11+git.180.2cf3b203f07-4.5.1
  • ldb SLE Module for Basesystem 15 SP2 2.0.12-3.3.1
  • samba SLE Module for Python 2 15 SP1, SLE Module for Basesystem 15 SP1, SLE High Availability Extension 15 SP1 +1 more 4.9.5+git.343.4bc358522a9-3.38.1

suse advisories SUSE-SU-2020:2673-1SUSE-SU-2020:1948-1SUSE-SU-2020:1913-1

  • samba openSUSE Tumbleweed 4.14.6+git.182.2205d5224e3-1.1
  • samba openSUSE Leap 15.2 4.11.11+git.180.2cf3b203f07-lp152.3.6.1
  • ldb openSUSE Leap 15.2 2.0.12-lp152.2.6.1
  • samba openSUSE Leap 15.2 4.11.11+git.180.2cf3b203f07-lp152.3.3.1
  • ldb openSUSE Leap 15.2 2.0.12-lp152.2.3.1
  • samba openSUSE Leap 15.1 4.9.5+git.343.4bc358522a9-lp151.2.27.1

opensuse advisories openSUSE-SU-2024:11365-1openSUSE-SU-2020:1313-1openSUSE-SU-2020:1023-1openSUSE-SU-2020:0984-1

  • samba Alpine 3.10 4.10.17-r0
  • samba Alpine 3.11 4.11.14-r0
  • samba Alpine 3.24, Alpine 3.23, Alpine 3.22 +10 more 4.12.5-r0

alpine advisories ALPINE-CVE-2020-10760

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • samba Arch Linux 4.12.6-1

arch linux advisories AVG-1202

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2020-10760 updated cvss 6.5

samba: LDAP Use-after-free in Samba AD DC Global Catalog with paged_results and VLV

  • Red Hat Enterprise Linux 5 samba, samba3x Red Hat Enterprise Linux 6 samba, samba-swat, libsmbclient, samba-client, samba-common, samba-winbind, +4 more Red Hat Enterprise Linux 7 ctdb, samba, samba-dc, ctdb-tests, samba-libs, samba-pidl, +18 more Red Hat Enterprise Linux 8 ctdb, samba, libnetapi, ctdb-tests, samba-libs, samba-pidl, +24 more Red Hat Storage 3 ctdb, samba, samba-dc, ctdb-tests, samba-libs, samba-pidl, +21 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

2.66% chance of exploitation in the next 30 days, higher than 85% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 4.0 AV:N/AC:L/Au:S/C:N/I:N/A:P

Affected products

  • n/a Samba

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.