CVE-2026-1933 Details
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.
View at NVD
Exploit prediction scoring system (EPSS) score for CVE-2026-1933
EPSS (Exploit Prediction Scoring System): EPSS predicts the likelihood that a vulnerability will be exploited in the wild. A higher percentage means a greater chance of an exploit occurring. The EPSS model produces a probability score between 0 and 1 (0 and 100%).
0.86 Probability of exploitation activity being observed over the next 30 days (54th percentile)
CVSS score for CVE-2026-1933
CVSS (Common Vulnerability Scoring System): An open framework owned and managed by FIRST.Org, Inc. that assigns a numerical score from 0 to 10 to software vulnerabilities to indicate their severity.
7.1 High
Products affected by CVE-2026-1933
Samba 4.1.16
Samba 4.1.17
Samba 4.1.18
Samba 4.1.20
Samba 4.1.21
DVE Score by Bitsight AI
DVE scores complement traditional static scoring systems like CVSS with Bitsight AI powered real-time threat intelligence and underground cyber criminal activity so that security teams can reduce alert fatigue and focus on vulnerabilities most likely to be exploited.
Low
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CVE-2026-1933 Global Footprint

Top 10 Identified Countries

Country Observations Percentage
TW 202 14.92%
RU 151 11.15%
FR 127 9.38%
US 81 5.98%
HU 71 5.24%
IT 44 3.25%
TR 43 3.18%
DE 39 2.88%
ES 37 2.73%
CZ 36 2.66%

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CVE-2026-1933 Industry Footprint

Top 10 Identified Industries

*Service provider organizations (typically Technology and Telecommunications) are disproportionally represented in the results given their upstream ownership of end-user infrastructure. See our FAQs.

Industry* Observations Percentage
Telecommunications 633 80.74%
Technology 127 16.20%
Education 5 0.64%
Engineering 5 0.64%
Utilities 4 0.51%
Media/Entertainment 3 0.38%
Business Services 3 0.38%
Manufacturing 2 0.26%
Energy/Resources 1 0.13%
Aerospace/Defense 1 0.13%

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