HOME VULNERABILITIESCVE-2022-32250

HIGH

CVE-2022-32250

CWE-416Published: June 2, 2022· Updated: Jun 17, 2026

7.8

CVSS v3.1

Official Description

net/netfilter/nf_tables_api.c in the Linux kernel through 5.18.1 allows a local user (able to create user/net namespaces) to escalate privileges to root because an incorrect NFT_STATEFUL_EXPR check leads to a use-after-free.

Technical Analysis

CVE-2022-32250 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), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.8.

From a weakness classification perspective (CWE-416): Use-after-free vulnerabilities involve accessing memory after it has been freed, often enabling arbitrary code execution.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges Req.Low

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

Debian1 product(s)

debian linux

Fedora1 product(s)

fedora

Linux1 product(s)

linux kernel

netapp10 product(s)

h300s firmwareh300sh500s firmwareh500sh700s firmwareh700sh410s firmwareh410sh410c firmwareh410c

Source: NVD CPE · 15 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time

Offensive Security exploit database

GitHub PoC Search

Community PoC repositories

Rapid7 / Metasploit

Metasploit module search

Security advisories & exploits

Official NIST entry

CVE Program entry

External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttp://www.openwall.com/lists/oss-security/2022/06/03/1

PATCHhttp://www.openwall.com/lists/oss-security/2022/06/04/1

PATCHhttp://www.openwall.com/lists/oss-security/2022/08/25/1

PATCHhttps://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/net/netfilter?id=520778042ccca019f3ffa136dd0ca565c486cedd

PATCHhttps://www.openwall.com/lists/oss-security/2022/05/31/1

PATCHhttp://www.openwall.com/lists/oss-security/2022/06/03/1

PATCHhttp://www.openwall.com/lists/oss-security/2022/06/04/1

PATCHhttp://www.openwall.com/lists/oss-security/2022/08/25/1

PATCHhttps://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/net/netfilter?id=520778042ccca019f3ffa136dd0ca565c486cedd

PATCHhttps://www.openwall.com/lists/oss-security/2022/05/31/1

ADVISORYhttp://www.openwall.com/lists/oss-security/2022/06/20/1

ADVISORYhttp://www.openwall.com/lists/oss-security/2022/07/03/5

ADVISORYhttp://www.openwall.com/lists/oss-security/2022/07/03/6

ADVISORYhttp://www.openwall.com/lists/oss-security/2022/09/02/9

ADVISORYhttps://blog.theori.io/research/CVE-2022-32250-linux-kernel-lpe-2022/

ADVISORYhttps://bugzilla.redhat.com/show_bug.cgi?id=2092427

ADVISORYhttps://github.com/theori-io/CVE-2022-32250-exploit

ADVISORYhttps://lists.debian.org/debian-lts-announce/2022/07/msg00000.html

ADVISORYhttps://security.netapp.com/advisory/ntap-20220715-0005/

ADVISORYhttps://www.debian.org/security/2022/dsa-5161

ADVISORYhttps://www.debian.org/security/2022/dsa-5173

ADVISORYhttp://www.openwall.com/lists/oss-security/2022/06/20/1

ADVISORYhttp://www.openwall.com/lists/oss-security/2022/07/03/5

ADVISORYhttp://www.openwall.com/lists/oss-security/2022/07/03/6

ADVISORYhttp://www.openwall.com/lists/oss-security/2022/09/02/9

ADVISORYhttps://blog.theori.io/research/CVE-2022-32250-linux-kernel-lpe-2022/

ADVISORYhttps://bugzilla.redhat.com/show_bug.cgi?id=2092427

ADVISORYhttps://github.com/theori-io/CVE-2022-32250-exploit

ADVISORYhttps://lists.debian.org/debian-lts-announce/2022/07/msg00000.html

ADVISORYhttps://security.netapp.com/advisory/ntap-20220715-0005/

ADVISORYhttps://www.debian.org/security/2022/dsa-5161

ADVISORYhttps://www.debian.org/security/2022/dsa-5173

All References (36)

→

http://www.openwall.com/lists/oss-security/2022/06/03/1Exploit · Mailing List · Patch · Third Party Advisory

→

http://www.openwall.com/lists/oss-security/2022/06/04/1Mailing List · Patch · Third Party Advisory

→

http://www.openwall.com/lists/oss-security/2022/06/20/1Mailing List · Third Party Advisory

→

http://www.openwall.com/lists/oss-security/2022/07/03/5Mailing List · Third Party Advisory

→

http://www.openwall.com/lists/oss-security/2022/07/03/6Mailing List · Third Party Advisory

→

http://www.openwall.com/lists/oss-security/2022/08/25/1Mailing List · Patch · Third Party Advisory

→

http://www.openwall.com/lists/oss-security/2022/09/02/9Mailing List · Third Party Advisory

→

https://blog.theori.io/research/CVE-2022-32250-linux-kernel-lpe-2022/Exploit · Third Party Advisory

→

https://bugzilla.redhat.com/show_bug.cgi?id=2092427Issue Tracking · Third Party Advisory

→

https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/net/netfilter?id=520778042ccca019f3ffa136dd0ca565c486ceddMailing List · Patch · Vendor Advisory

→

https://github.com/theori-io/CVE-2022-32250-exploitExploit · Third Party Advisory

→

https://lists.debian.org/debian-lts-announce/2022/07/msg00000.htmlMailing List · Third Party Advisory

→

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MO6Y3TC4WUUNKRP7OQA26OVTZTPCS6F2/

→

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UIZTJOJCVVEJVOQSCHE6IJQKMPISHQ5L/

→

https://security.netapp.com/advisory/ntap-20220715-0005/Third Party Advisory

Quick Facts

CVE IDCVE-2022-32250

CVSS Score7.8 / 10

SeverityHIGH

WeaknessCWE-416

CISA KEVNo

Affected4 vendor(s)

PublishedJun 2, 2022

Related CVEs (CWE-416)

Recommended Actions

→Apply vendor patches immediately
→Monitor CVE-2022-32250 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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