HOMEVULNERABILITIESCVE-2020-12659
MEDIUM

CVE-2020-12659

CWE-787Published: May 5, 2020· Updated: Jun 17, 2026

6.7
CVSS v3.1

Official Description

An issue was discovered in the Linux kernel before 5.6.7. xdp_umem_reg in net/xdp/xdp_umem.c has an out-of-bounds write (by a user with the CAP_NET_ADMIN capability) because of a lack of headroom validation.

NVD Source

Technical Analysis

CVE-2020-12659 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires high 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), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 6.7.

From a weakness classification perspective (CWE-787): Out-of-bounds write vulnerabilities can lead to data corruption, crashes, or arbitrary code execution.

CVSS v3.1 Vector Breakdown

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

Affected Vendors & Products

Linux1 product(s)
linux kernel
netapp7 product(s)
active iq unified managercloud backuphci baseboard management controllersolidfire \& hci management nodesteelstore cloud integrated storageaff baseboard management controllersolidfire baseboard management controller
Source: NVD CPE · 15 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://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=99e3a236dd43d06c65af0a2ef9cb44306aef6e02
PATCHhttps://github.com/torvalds/linux/commit/99e3a236dd43d06c65af0a2ef9cb44306aef6e02
PATCHhttps://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=99e3a236dd43d06c65af0a2ef9cb44306aef6e02
PATCHhttps://github.com/torvalds/linux/commit/99e3a236dd43d06c65af0a2ef9cb44306aef6e02
ADVISORYhttp://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html
ADVISORYhttps://bugzilla.kernel.org/show_bug.cgi?id=207225
ADVISORYhttps://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6.7
ADVISORYhttps://security.netapp.com/advisory/ntap-20200608-0001/
ADVISORYhttps://usn.ubuntu.com/4387-1/
ADVISORYhttps://usn.ubuntu.com/4388-1/
ADVISORYhttps://usn.ubuntu.com/4389-1/
ADVISORYhttp://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html
ADVISORYhttps://bugzilla.kernel.org/show_bug.cgi?id=207225
ADVISORYhttps://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6.7
ADVISORYhttps://security.netapp.com/advisory/ntap-20200608-0001/
ADVISORYhttps://usn.ubuntu.com/4387-1/
ADVISORYhttps://usn.ubuntu.com/4388-1/
ADVISORYhttps://usn.ubuntu.com/4389-1/

All References (18)

→
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.htmlMailing List · Third Party Advisory · VDB Entry
→
https://bugzilla.kernel.org/show_bug.cgi?id=207225Exploit · Issue Tracking · Vendor Advisory
→
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6.7Release Notes · Vendor Advisory
→
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=99e3a236dd43d06c65af0a2ef9cb44306aef6e02Patch · Third Party Advisory
→
https://github.com/torvalds/linux/commit/99e3a236dd43d06c65af0a2ef9cb44306aef6e02Patch · Third Party Advisory
→
https://security.netapp.com/advisory/ntap-20200608-0001/Third Party Advisory
→
https://usn.ubuntu.com/4387-1/Third Party Advisory
→
https://usn.ubuntu.com/4388-1/Third Party Advisory
→
https://usn.ubuntu.com/4389-1/Third Party Advisory
→
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.htmlMailing List · Third Party Advisory · VDB Entry
→
https://bugzilla.kernel.org/show_bug.cgi?id=207225Exploit · Issue Tracking · Vendor Advisory
→
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6.7Release Notes · Vendor Advisory
→
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=99e3a236dd43d06c65af0a2ef9cb44306aef6e02Patch · Third Party Advisory
→
https://github.com/torvalds/linux/commit/99e3a236dd43d06c65af0a2ef9cb44306aef6e02Patch · Third Party Advisory
→
https://security.netapp.com/advisory/ntap-20200608-0001/Third Party Advisory

Quick Facts

CVE IDCVE-2020-12659
CVSS Score6.7 / 10
SeverityMEDIUM
WeaknessCWE-787
CISA KEVNo
Affected2 vendor(s)
PublishedMay 5, 2020

Related CVEs (CWE-787)

CVE-2004-0978
10.0
CVE-2026-4746
10.0
CVE-2018-10718
10.0
CVE-2009-2466
10.0
CVE-2026-42369
10.0
CVE-2011-1807
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2020-12659 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. CVE data is provided under the NVD usage policy.
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