No exploitation reported

CVE-2023-6535

No exploitation reported by the sources we read.

Published2024-02-07
WeaknessCWE-476

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

A flaw was found in the Linux kernel's NVMe driver. This issue may allow an unauthenticated malicious actor to send a set of crafted TCP packages when using NVMe over TCP, leading the NVMe driver to a NULL pointer dereference in the NVMe driver, causing kernel panic and a denial of service.

Timeline

dates in UTC

2024-02-0721:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2023-6535?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2023-6535?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Redhat codeready linux builder eus

Branch	Affected	Fixed in	Source
8.6	= 8.6	no fix published	NVD
9.2	= 9.2	no fix published	NVD

Redhat codeready linux builder eus for power little endian eus

Branch	Affected	Fixed in	Source
8.6	= 8.6_ppc64le	no fix published	NVD
9.2	= 9.2_ppc64le	no fix published	NVD

Redhat codeready linux builder for arm64 eus

Branch	Affected	Fixed in	Source
8.6	= 8.6_aarch64	no fix published	NVD
9.2	= 9.2_aarch64	no fix published	NVD

13 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

No fix published by the sources we read yet. NVD record

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

CISA-ADPSSVC decisionnone2024-02-08
OpenCVESSVC decisionnone—
CNACVSS 3.16.5read 2026-10-23
NVDCVSS 3.17.5read 2026-10-23
CNAweakness (CWE)CWE-476read 2026-10-23
FIRST EPSSEPSS score1.5 %2026-10-22

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published: 2024-02-07
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2023-6535?

Is CVE-2023-6535 actively exploited?

Active exploitation of CVE-2023-6535 has not been confirmed. Its EPSS score was 1.5% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2023-6535?

CVE-2023-6535 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

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