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Vulnerabilities

Vulnerability · CVE-2023-6535

A flaw was found in the Linux kernel's NVMe driver.

Published Feb 7, 2024 · catalog updated Nov 5, 2026 · codeready linux builder eus

Last checked Nov 6, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2023-6535. EPSS is 1.55%. Act only if a listed version of codeready linux builder eus is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
High7.5
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
1.55%
Remediation
Advisory link
Affected products
cpe redhat/codeready linux builder eus · cpe redhat/codeready linux builder eus for power little endian eus · cpe redhat/codeready linux builder for arm64 eus · cpe redhat/codeready linux builder for ibm z systems eus · cpe redhat/enterprise linux

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe redhat/codeready linux builder eus8.6
  • cpe redhat/codeready linux builder eus9.2
  • cpe redhat/codeready linux builder eus for power little endian eus8.6_ppc64le
  • cpe redhat/codeready linux builder eus for power little endian eus9.2_ppc64le
  • cpe redhat/codeready linux builder for arm64 eus8.6_aarch64
  • cpe redhat/codeready linux builder for arm64 eus9.2_aarch64
  • cpe redhat/codeready linux builder for ibm z systems eus9.2_s390x
  • cpe redhat/enterprise linux8.0

How to fix CVE-2023-6535

  • No stored fix

    No vendor fix text is stored. Use the linked advisory before you change production.

  • Version check

    Seen in 8.6 · 5 other packages on the advisory

  • Advisory

    Open the cve_org record and follow its fix.

  • Official advisories

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2023-6535. EPSS is 1.55%. Act only if a listed version of codeready linux builder eus is installed.

Which versions are affected?

Compare what you have installed with redhat/codeready linux builder eus 8.6; redhat/codeready linux builder eus 9.2; redhat/codeready linux builder eus for power little endian eus 8.6_ppc64le; redhat/codeready linux builder eus for power little endian eus 9.2_ppc64le. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-476: NULL Pointer Dereference. EPSS 1.55%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Feb 7, 2024 · NIST NVD

    Detected

    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.

  2. Nov 5, 2026 · NIST NVD

    Updated

    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.

Sources

  • CVE.orgVulnerability recordCVE-2023-6535

    Official CVE identifier

    cve.org
  • NIST NVDVulnerability recordCVE-2023-6535

    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

    nvd.nist.gov

References

Freshness

Last verified in this catalog Nov 5, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • CVE.orgNov 6, 2026
  • NIST NVDNov 5, 2026