CVE-2023-3863

Name: CVE-2023-3863
Creator: NVD / NIST
Published: 2023-07-24T15:15:09.397+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.1/10EPSS 0.23%

Last modified Jun 17, 2026

CVE-2023-3863 is a medium-severity vulnerability rated 4.1/10 on the CVSS scale. A use-after-free flaw was found in nfc_llcp_find_local in net/nfc/llcp_core.c in NFC in the Linux kernel. This flaw allows a local user with special privileges to impact a kernel information leak issue.. EPSS estimates a 0.23% chance of exploitation in the next 30 days.

Description

A use-after-free flaw was found in nfc_llcp_find_local in net/nfc/llcp_core.c in NFC in the Linux kernel. This flaw allows a local user with special privileges to impact a kernel information leak issue.

Metrics

CVSS 3.1

4.1/10

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

EPSS Probability

0.23%

13.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Linux	Linux Kernel	< 6.5
Debian	Debian Linux	10.0
Debian	Debian Linux	11.0
Debian	Debian Linux	12.0

References

https://access.redhat.com/security/cve/CVE-2023-3863Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2225126Issue Tracking, Patch, Third Party Advisory
https://github.com/torvalds/linux/commit/6709d4b7bc2e079241fdef15d1160581c5261c10Patch
https://lists.debian.org/debian-lts-announce/2023/10/msg00027.htmlMailing List, Third Party Advisory
https://security.netapp.com/advisory/ntap-20240202-0002/
https://www.debian.org/security/2023/dsa-5480Third Party Advisory
https://www.debian.org/security/2023/dsa-5492Third Party Advisory
https://access.redhat.com/security/cve/CVE-2023-3863Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2225126Issue Tracking, Patch, Third Party Advisory
https://github.com/torvalds/linux/commit/6709d4b7bc2e079241fdef15d1160581c5261c10Patch
https://lists.debian.org/debian-lts-announce/2023/10/msg00027.htmlMailing List, Third Party Advisory
https://security.netapp.com/advisory/ntap-20240202-0002/
https://www.debian.org/security/2023/dsa-5480Third Party Advisory
https://www.debian.org/security/2023/dsa-5492Third Party Advisory

Timeline

Published: Jul 24, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-3863?

How severe is CVE-2023-3863?

CVE-2023-3863 has a CVSS score of 4.1/10 (MEDIUM severity). The EPSS model estimates a 0.23% probability of exploitation in the next 30 days.

How do I fix CVE-2023-3863?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-3863?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST