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CVE-2023-32253

22
FAUCET Score

CVE-2023-32253 is a denial-of-service vulnerability in the Linux kernel's ksmbd component, triggered by multiple concurrent session setup requests. With a CVSS score of 5.9 (Medium), it can be exploited remotely with high attack complexity, leading to a denial of service. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
Https://Git.Kernel.Org/Pub/Scm/Linux/Kernel/Git/Torvalds/Linux.Git/Linux
>= 0, < 5.15.112, >= 6.0.0, < 6.0.*, >= 6.1.0, < 6.1.28, >= 6.2.0, < 6.2.15, >= 6.3.0, < 6.3.2CNA affecteddefault unaffected

CVSS Data

CVSS version used by this source: 3.1

5.9MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.2
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.30%
Probability of exploitation in next 30 days
EPSS Percentile
22.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0030 is in the 3rd percentile among its peer group of 19,956 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2023-32253Moderate

kernel: Deadlock in ksmbd_find_crypto_ctx()

May 17, 2023

References

access.redhat.com / security/cve/CVE-2023-32253
bugzilla.redhat.com / show_bug.cgi