What is CVE-2022-4696?

CVE-2022-4696 is a high-severity vulnerability in Linux Kernel, classified under Release of Invalid Pointer or Reference. CVSS score: 7.8/10. Published 2023-01-11.

How severe is CVE-2022-4696?

High severity. CVSS v3 base score is 7.8 out of 10.

Is CVE-2022-4696 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Linux Kernel

CVE-2022-4696

There exists a use-after-free vulnerability in the Linux kernel through io_uring and the IORING_OP_SPLICE operation. If IORING_OP_SPLICE is missing the IO_WQ_WORK_FILES flag, which signals that the operation won't use current->nsproxy, so…

EPSS: 0.000 (5.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Linux Kernel — versions 5.7-rc1

Weakness classification (CWE)

CWE-763 — Release of Invalid Pointer or Reference

Public proof-of-concept exploits

ARPSyndicate/cvemon

References

Frequently asked questions

What is CVE-2022-4696?: CVE-2022-4696 is a high-severity vulnerability in Linux Kernel, classified under Release of Invalid Pointer or Reference. CVSS score: 7.8/10. Published 2023-01-11.
How severe is CVE-2022-4696?: High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2022-4696 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.