What is CVE-2021-47464?

CVE-2021-47464 is a high-severity vulnerability in Linux, classified under NULL Pointer Dereference. CVSS score: 7.4/10. Published 2024-05-22.

How severe is CVE-2021-47464?

High severity. CVSS v3 base score is 7.4 out of 10.

Is CVE-2021-47464 known to be exploited?

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

NULL pointer dereference in Linux

CVE-2021-47464

In the Linux kernel, the following vulnerability has been resolved: audit: fix possible null-pointer dereference in audit_filter_rules Fix possible null-pointer dereference in audit_filter_rules. audit_filter_rules() error: we previously assumed 'ctx' could be null

EPSS: 0.002 (13.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.4 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Linux — versions bf361231c295d92a28ca283ea713f56e93e55796, 5.3, 0
Linux Linux_kernel — versions 5.15

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

Public proof-of-concept exploits

ARPSyndicate/cve-scores

References

416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)

Frequently asked questions

What is CVE-2021-47464?: CVE-2021-47464 is a high-severity vulnerability in Linux, classified under NULL Pointer Dereference. CVSS score: 7.4/10. Published 2024-05-22.
How severe is CVE-2021-47464?: High severity. CVSS v3 base score is 7.4 out of 10.
Is CVE-2021-47464 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.