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Critical Samba Vulnerability Allows Remote Code Execution

First seen 29 May 2026, 20:09 UTC • •
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ThreatCluster AI
ThreatCluster •May 30, 2026 at 19:54 UTC
  • •CVE-2026-4480 allows remote code execution on Samba print servers.
  • •The vulnerability has a maximum CVSS score of 10.0, indicating critical severity.
  • •Immediate action is recommended for organizations using affected Samba configurations.

A critical security vulnerability in Samba's printing subsystem, tracked as CVE-2026-4480, has been disclosed, enabling unauthenticated attackers to execute arbitrary code remotely on affected servers. The flaw, which has a maximum CVSS score of 10.0, impacts Samba print servers configured with the 'print command'. This vulnerability poses significant risks to confidentiality, integrity, and availability of systems using Samba for file and print services across Linux and UNIX environments. The vulnerability was published on May 26, 2026, and is considered highly exploitable due to its nature. Organizations using affected Samba versions are urged to take immediate action to mitigate risks. No specific exploits have been reported yet, but the ease of exploitation raises concerns about potential widespread attacks.

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Updated 104d ago How this analysis works

Timeline

2026-05-26
CVE-2026-4480 published
A critical vulnerability in Samba's printing subsystem was disclosed, allowing remote code execution.
Gbhackers
2026-05-29
Vulnerability reported in media
Cybersecurity news outlets report on CVE-2026-4480, emphasizing its critical nature and potential impact.
Cybersecuritynews

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