A flaw was found when using samba as an Active Directory Domain Controller. Due to the way samba handles certain requests as an Active Directory Domain Controller LDAP server, an unauthorized user can cause a stack overflow leading to a denial of service. The highest threat from this vulnerability is to system availability. This issue affects all samba versions before 4.10.15, before 4.11.8 and before 4.12.2.
CVE-2020-10704
Score 7.5 from GitHub Security Advisory published 2022-05-24. NVD baseline CVSS 7.5; sources differ by 0.0.
- High severity, but no confirmed exploitation yet
A fix is available — apply it.
- CVSS v3
- 7.5
- EG Score
- 7.5(medium)
- EG Risk
- —
- EPSS
- 87.8%
- KEV
- Not listed
Published
May 6, 2020
Last Modified
November 21, 2024
References (16)
- secalert@redhathttp://lists.opensuse.org/opensuse-security-announce/2020-07/msg00054.html
- secalert@redhathttp://lists.opensuse.org/opensuse-security-announce/2020-09/msg00002.html
- secalert@redhathttps://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10704
- secalert@redhathttps://lists.debian.org/debian-lts-announce/2020/11/msg00041.html
- secalert@redhathttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U5KW3ZO35NVDO57JSBZHTQZOS3AIQ5QE/
- secalert@redhathttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Y7DVGCHG3XPIBQ5ETGMGW7MXNOO4HFH4/
- secalert@redhathttps://security.gentoo.org/glsa/202007-15
- secalert@redhathttps://www.samba.org/samba/security/CVE-2020-10704.html
- af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00054.html
- af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00002.html
- af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10704
- af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2020/11/msg00041.html
- af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U5KW3ZO35NVDO57JSBZHTQZOS3AIQ5QE/
- af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Y7DVGCHG3XPIBQ5ETGMGW7MXNOO4HFH4/
- af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/202007-15
Patch Availability(2)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | libpam-smbpass (2:4.3.11+dfsg-0ubuntu0.14.04.20+esm6) @ trusty | 2026-05-27 | ubuntu |
| ubuntu | winbind (2:4.3.11+dfsg-0ubuntu0.16.04.26) @ xenial | 2026-05-27 | ubuntu |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
All Vendor Advisories
(2)
Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.
Data Freshness Timeline
(refreshed 13× in last 7d / 42× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-22 22:32 UTCEG score recompute
- 2026-07-22 14:05 UTCEPSS rescore
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- 2026-05-27 03:54 UTCEG score recompute
- 2026-05-27 03:54 UTCVendor advisory
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- 2026-05-26 13:42 UTCEPSS rescore
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Related CVEs(same vendor + same CWE)
Same vendor
10 shownubuntu
Same CWE
10 shownCWE-120
- CVE-2010-10016EG 10.0CRITICAL
- CVE-2012-10035EG 10.0CRITICAL
- CVE-2009-0948EG 9.8CRITICAL
- CVE-2006-3100EG 9.8CRITICAL
- CVE-2009-5041EG 9.8CRITICAL
- CVE-2010-5333EG 9.8EPSS 97%CRITICAL
- CVE-2013-0641NVD 7.8EG 9.0 KEVEPSS 98%HIGH
- CVE-2011-4862NVD 0.0EG 9.0EPSS 100%NONE
- CVE-2010-2572NVD 7.8EG 9.0 KEVEPSS 99%HIGH
- CVE-2007-5659NVD 7.8EG 9.0 KEVEPSS 100%HIGH
Frequently asked(5)
What is CVE-2020-10704?
When was CVE-2020-10704 disclosed?
Is CVE-2020-10704 actively exploited?
What is the CVSS score of CVE-2020-10704?
How do I remediate CVE-2020-10704?
Dependency Blast Radius
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