How severe is CVE-2023-39180?

CVE-2023-39180 has a CVSS 3.x base score of 4.0, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.

Is CVE-2023-39180 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-39180?

CVE-2023-39180 affects Linux Linux Kernel. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-39180?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2023-39180 have an EU (EUVD) identifier?

Yes. CVE-2023-39180 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-42915.

When was CVE-2023-39180 published?

CVE-2023-39180 was published on 2024-11-18 and last updated on 2026-06-17.

CVE-2023-39180

CVE-2023-39180 is a medium-severity vulnerability in Linux Linux Kernel with a CVSS 3.x base score of 4.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-400.

Key facts

Severity: Medium (CVSS 3.x base score 4.0)
EPSS exploit prediction: 1% (69th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-42915
Weakness: CWE-400
Affected product: Linux Linux Kernel
Published: 2024-11-18
Last modified: 2026-06-17

Description

A flaw was found within the handling of SMB2_READ commands in the kernel ksmbd module. The issue results from not releasing memory after its effective lifetime. An attacker can leverage this to create a denial-of-service condition on affected installations of Linux. Authentication is not required to exploit this vulnerability, but only systems with ksmbd enabled are vulnerable.

Frequently asked questions

What is CVE-2023-39180?: A flaw was found within the handling of SMB2_READ commands in the kernel ksmbd module. The issue results from not releasing memory after its effective lifetime. An attacker can leverage this to create a denial-of-service condition on affected installations of Linux. Authentication is not required to exploit this vulnerability, but only systems with ksmbd enabled are vulnerable.
How severe is CVE-2023-39180?: CVE-2023-39180 has a CVSS 3.x base score of 4.0, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.
Is CVE-2023-39180 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-39180?: CVE-2023-39180 affects Linux Linux Kernel. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-39180?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2023-39180 have an EU (EUVD) identifier?: Yes. CVE-2023-39180 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-42915.
When was CVE-2023-39180 published?: CVE-2023-39180 was published on 2024-11-18 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*

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