What’s Vulnerable › Vulnerabilities

CVE-2023-5972: Kernel: the nfta_inner_num and nfta_expr_name netlink attributes accessed without checking its presence in nft_inner.c

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-11-23 · updated 2026-06-17
• Weakness: CWE-476

Description

A null pointer dereference flaw was found in the nft_inner.c functionality of netfilter in the Linux kernel. This issue could allow a local user to crash the system or escalate their privileges on the system.

Affected products

• Fedoraproject Fedora: 39
• Linux kernel: from 6.2.1 through 6.5.10; 6.2-rc1, 6.2-rc2, 6.2-rc3, 6.2-rc4, 6.2-rc5, 6.2-rc6 (+14)

References

• https://access.redhat.com/security/cve/CVE-2023-5972
• https://bugzilla.redhat.com/show_bug.cgi?id=2248189
• https://github.com/torvalds/linux/commit/505ce0630ad5d31185695f8a29dde8d29f28faa7
• https://github.com/torvalds/linux/commit/52177bbf19e6e9398375a148d2e13ed492b40b80
• https://access.redhat.com/security/cve/CVE-2023-5972
• https://bugzilla.redhat.com/show_bug.cgi?id=2248189
• https://github.com/torvalds/linux/commit/505ce0630ad5d31185695f8a29dde8d29f28faa7
• https://github.com/torvalds/linux/commit/52177bbf19e6e9398375a148d2e13ed492b40b80

Get alerted when CVE-2023-5972 or the next vulnerability affects your stack