HOMEVULNERABILITIESCVE-2020-10751
MEDIUM

CVE-2020-10751

CWE-349Published: May 26, 2020· Updated: Jun 17, 2026

6.1
CVSS v3.1

Official Description

A flaw was found in the Linux kernels SELinux LSM hook implementation before version 5.7, where it incorrectly assumed that an skb would only contain a single netlink message. The hook would incorrectly only validate the first netlink message in the skb and allow or deny the rest of the messages within the skb with the granted permission without further processing.

NVD Source

Technical Analysis

CVE-2020-10751 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 6.1.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityLow
AvailabilityNone
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N

Affected Vendors & Products

kernel1 product(s)
selinux
Red Hat1 product(s)
enterprise linux server
Source: NVD CPE · 3 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10751
PATCHhttps://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=fb73974172ffaaf57a7c42f35424d9aece1a5af6
PATCHhttps://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10751
PATCHhttps://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=fb73974172ffaaf57a7c42f35424d9aece1a5af6
ADVISORYhttp://www.openwall.com/lists/oss-security/2020/05/27/3
ADVISORYhttps://www.openwall.com/lists/oss-security/2020/04/30/5
ADVISORYhttp://www.openwall.com/lists/oss-security/2020/05/27/3
ADVISORYhttps://www.openwall.com/lists/oss-security/2020/04/30/5

All References (36)

→
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html
→
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00008.html
→
http://www.openwall.com/lists/oss-security/2020/05/27/3Mailing List · Third Party Advisory
→
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10751Issue Tracking · Patch · Third Party Advisory
→
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=fb73974172ffaaf57a7c42f35424d9aece1a5af6Patch · Vendor Advisory
→
https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html
→
https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html
→
https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html
→
https://lore.kernel.org/selinux/CACT4Y+b8HiV6KFuAPysZD=5hmyO4QisgxCKi4DHU3CfMPSP=yg%40mail.gmail.com/
→
https://usn.ubuntu.com/4389-1/
→
https://usn.ubuntu.com/4390-1/
→
https://usn.ubuntu.com/4391-1/
→
https://usn.ubuntu.com/4412-1/
→
https://usn.ubuntu.com/4413-1/
→
https://www.debian.org/security/2020/dsa-4698

Quick Facts

CVE IDCVE-2020-10751
CVSS Score6.1 / 10
SeverityMEDIUM
WeaknessCWE-349
CISA KEVNo
Affected2 vendor(s)
PublishedMay 26, 2020

Related CVEs (CWE-349)

CVE-2026-42960
10.0
CVE-2026-41120
9.8
CVE-2019-9535
9.8
CVE-2023-51655
9.8
CVE-2018-1131
8.8
CVE-2025-5994
8.7

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2020-10751 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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