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No exploitation reportedFix available

CVE-2023-0210

No exploitation reported by the sources we read.

  • Published2023-03-27
  • Fixed in6.1.5 · 6.0.19 · 5.15.87
  • WeaknessCWE-122 · CWE-787

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 bug affects the Linux kernel’s ksmbd NTLMv2 authentication and is known to crash the OS immediately in Linux-based systems.

Timeline

dates in UTC
  1. 2023-03-2722:15CVE publishedNVD

Versions per branch

NVD
Linux linux kernel
BranchAffectedFixed in
6.1≥ 6.1, < 6.1.56.1.5
6.0≥ 5.16, < 6.0.196.0.19
5.15≥ 5.15, < 5.15.875.15.87

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

Products declared by the CNA1 product

As redhat, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • Linux Kernel
    Affected
    • = Kernel 6.2 RC4no fix stated

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2023-07-23

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • kernelopenEuler:22.03-LTS-SP1all versions · fixed in 5.10.0-136.17.0.93.oe2203sp1
  • kernelopenEuler:22.03-LTSall versions · fixed in 5.10.0-60.79.0.103.oe2203
  • kernelMageia:8all versions · fixed in 5.15.88-1.mga8and 1 other package
  • kmod-virtualboxMageia:8all versions · fixed in 7.0.4-1.4.mga8
  • kmod-xtables-addonsMageia:8all versions · fixed in 3.23-1.2.mga8
  • linuxUbuntu:22.04:LTSall versions · fixed in 5.15.0-69.76and 1 other package
  • linuxDebian:14all versions · fixed in 6.1.7-1
  • linuxDebian:13all versions · fixed in 6.1.7-1

35 more package ranges on OSV.dev

Vendor advisories

  • CVE-2023-0210 Red Hat Product Security

    Kernel: Heap overflow in ksmbd_decode_ntlmssp_auth_blob cause remote DOS

Full record on NVD

Fix

  1. Update Linux linux kernel to 6.1.5 · 6.0.19 · 5.15.87

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

  • CISA-ADPSSVC decisionnone2025-02-19
  • NVDCVSS 3.17.5read 2026-10-23
  • CNAweakness (CWE)CWE-122known since 2026-10-23
  • NVDweakness (CWE)CWE-787read 2026-10-23
  • FIRST EPSSEPSS score71.7 %read 2026-11-09
  • OSVaffected packages—
  • GitHub Advisoriesadvisory—

Identifiers

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
2023-03-27
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-mw67-65x5-h28p

Frequently asked questions

What is CVE-2023-0210?

A bug affects the Linux kernel’s ksmbd NTLMv2 authentication and is known to crash the OS immediately in Linux-based systems.

Is CVE-2023-0210 actively exploited?

Active exploitation of CVE-2023-0210 has not been confirmed. Its EPSS score was 71.7% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2023-0210?

CVE-2023-0210 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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