Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2023-53332

20
FAUCET Score

CVE-2023-53332 is a NULL pointer dereference vulnerability in the Linux kernel's interrupt handling, specifically within the genirq/ipi component. This flaw, affecting Linux kernel versions, can lead to a kernel oops and system unavailability if ipi_send_mask() or ipi_send_single() are called with an invalid interrupt number. Rated Medium severity with a CVSS score of 5.5, it requires local access and low privileges to exploit, resulting in a high impact on availability but no impact on confidentiality or integrity. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 4.6, < 6.1.18CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 6.2, < 6.2.5CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.5MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.13%
Probability of exploitation in next 30 days
EPSS Percentile
3.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0013 is in the 21st percentile among its peer group of 15,940 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (4)

redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-rt
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-rt

Vendor Advisories (2)

redhatCVE-2023-53332Low

kernel: genirq/ipi: Fix NULL pointer deref in irq_data_get_affinity_mask()

Sep 16, 2025
microsoft2025-Sep/CVE-2023-53332Moderate

genirq/ipi: Fix NULL pointer deref in irq_data_get_affinity_mask()

Sep 9, 2025

References

git.kernel.org / stable/c/7448c73d64075051f50caed2c62f46553b69ab8a
Patch
git.kernel.org / stable/c/926aef60ea64cd9becf2829f7388f48dbe8bcb11
Patch
git.kernel.org / stable/c/feabecaff5902f896531dde90646ca5dfa9d4f7d
Patch