High severity · published Jun 2, 2022
CVE-2022-32250
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…
7.8
CVSS
2.9%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.9% · higher than 87% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
4.1 before 4.9.318; 4.10 before 4.14.283; 4.15 before 4.19.247; 4.20 before 5.4.198; 5.5 before 5.10.120; 5.11 before 5.15.45; +2 more · source: NVD
DL
Debian Linux · Debian
9.0; 10.0 · source: NVD
FE
Fedora · Fedoraproject
35; 36 · source: NVD
HF
H300s Firmware · Netapp
All versions, or not specified · source: NVD
HF
H410c Firmware · Netapp
All versions, or not specified · source: NVD
HF
H410s Firmware · Netapp
All versions, or not specified · source: NVD
HF
H500s Firmware · Netapp
All versions, or not specified · source: NVD
HF
H700s Firmware · Netapp
All versions, or not specified · source: NVD
SS
SIMATIC S7-1500 TM MFP - GNU/Linux subsystem · Siemens
before V1.1 · source: CISA
In the news
VulnerabilityHigh
ZDI-26-191: (Pwn2Own) Linux Kernel nf_tables Use-After-Free Privilege Escalation Vulnerability
This vulnerability allows local attackers to escalate privileges on affected installations of Linux Kernel. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The ZDI has assigned a CVSS rating of 8.8. The following CVEs are assigned: CVE-2022-32250.
Mar 16, 2026·Zero Day Initiative
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-32250
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-32250
Exploit
http://www.openwall.com/lists/oss-security/2022/06/03/1
Mailing List
http://www.openwall.com/lists/oss-security/2022/06/04/1
Mailing List
http://www.openwall.com/lists/oss-security/2022/06/20/1
Mailing List
http://www.openwall.com/lists/oss-security/2022/07/03/5
Mailing List
http://www.openwall.com/lists/oss-security/2022/07/03/6
Mailing List
http://www.openwall.com/lists/oss-security/2022/08/25/1
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