How severe is CVE-2023-32253?

CVE-2023-32253 has a CVSS 3.x base score of 5.9, 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 high.

Is CVE-2023-32253 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2023-32253?

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

Does CVE-2023-32253 have an EU (EUVD) identifier?

Yes. CVE-2023-32253 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-36510.

When was CVE-2023-32253 published?

CVE-2023-32253 was published on 2025-08-02 and last updated on 2026-06-30.

CVE-2023-32253

CVE-2023-32253 is a medium-severity vulnerability with a CVSS 3.x base score of 5.9. 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-413.

Key facts

Severity: Medium (CVSS 3.x base score 5.9)
EPSS exploit prediction: 0% (22nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-36510
Weakness: CWE-413
Published: 2025-08-02
Last modified: 2026-06-30

Description

A flaw was found in the Linux kernel's ksmbd component. A deadlock is triggered by sending multiple concurrent session setup requests, possibly leading to a denial of service.

Frequently asked questions

What is CVE-2023-32253?: A flaw was found in the Linux kernel's ksmbd component. A deadlock is triggered by sending multiple concurrent session setup requests, possibly leading to a denial of service.
How severe is CVE-2023-32253?: CVE-2023-32253 has a CVSS 3.x base score of 5.9, 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 high.
Is CVE-2023-32253 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2023-32253?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2023-32253 have an EU (EUVD) identifier?: Yes. CVE-2023-32253 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-36510.
When was CVE-2023-32253 published?: CVE-2023-32253 was published on 2025-08-02 and last updated on 2026-06-30.

References

Other CWE-413 vulnerabilities

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CVE-2019-8998 — High (CVSS 7.8): An information disclosure vulnerability leading to a potential local escalation of privilege in the procfs service (the…
CVE-2022-49737 — High (CVSS 7.7): In X.Org X server 20.11 through 21.1.16, when a client application uses easystroke for mouse gestures, the main thread…
CVE-2026-32748 — High (CVSS 7.5): Squid is a caching proxy for the Web. Prior to version 7.5, due to premature release of resource during expected…
CVE-2025-0003 — High (CVSS 7.3): Inadequate lock protection within Xilinx Run time may allow a local attacker to trigger a Use-After-Free condition…

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