HOMEVULNERABILITIESCVE-2026-1933
MEDIUM

CVE-2026-1933

CWE-284Published: May 27, 2026· Updated: Jun 2, 2026

6.5
CVSS v3.1

Official Description

A flaw was found in Samba’s handling of NTFS-style reparse points on shares configured with read only = yes. Due to missing SMB-layer access checks, authenticated users with underlying filesystem write permissions may create or delete reparse point metadata through SMB operations even on read-only exports. This could allow modification of SMB-visible file behavior, including converting files into symbolic links or other reparse point types.

NVD Source

Technical Analysis

CVE-2026-1933 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in full integrity compromise (data manipulation), with a CVSS base score of 6.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Affected Vendors & Products

Red Hat2 products
openshift container platformenterprise linux
samba1 product
samba
Source: NVD CPE · 6 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://access.redhat.com/security/cve/CVE-2026-1933
ADVISORYhttps://bugzilla.redhat.com/show_bug.cgi?id=2447317
ADVISORYhttps://bugzilla.samba.org/show_bug.cgi?id=15992

All References (3)

→
https://access.redhat.com/security/cve/CVE-2026-1933Third Party Advisory
→
https://bugzilla.redhat.com/show_bug.cgi?id=2447317Issue Tracking · Third Party Advisory
→
https://bugzilla.samba.org/show_bug.cgi?id=15992Issue Tracking · Vendor Advisory

Quick Facts

CVE IDCVE-2026-1933
CVSS Score6.5 / 10
SeverityMEDIUM
WeaknessCWE-284
CISA KEVNo
Affected2 vendors
PublishedMay 27, 2026

Related CVEs (CWE-284)

CVE-2026-32737
10.0
CVE-2026-46695
10.0
CVE-2026-34908
KEV10.0
CVE-2026-35307
10.0
CVE-2026-30966
10.0
CVE-2026-35308
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-1933 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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