Veeam ONE

Critical Veeam ONE Flaw Allows Remote Attackers to Expose Service Account Credentials via Forced SMB Authentication

Veeam has patched a critical vulnerability in Veeam ONE that enables a remote unauthenticated attacker to force SMB authentication attempts using the platform's service account. Identified as CVE-2026-65641 with a CVSS score of 9.3, the flaw impacts version 13.1.0.7034 and all prior builds of the 13.x line, while 12.x installations remain unaffected. Exploitation allows an attacker to redirect SMB authentication to a controlled server, exposing Net-NTLM material that can be used for offline password cracking or NTLM relay attacks against other services. The severity depends on the privileges of the compromised account, with elevated risk in environments where Veeam ONE runs with high privileges or broad access to Active Directory, backup servers, and hypervisors. Patches are available in Veeam ONE 13.1 Patch 0 (build 13.1.0.7233) and Veeam ONE 13.0.2 Patch 1 (build 13.0.2.7159), and organizations are urged to apply updates immediately.

Veeam ONE Receives Security Update Addressing Critical Vulnerabilities Including CVE-2026-65641

Veeam Software has released updates for its backup environment monitoring tool Veeam ONE to address multiple vulnerabilities. The advisory covers the 13.x series and includes fixes rated as critical under CVSSv4.0. One flaw, CVE-2026-65641, allows service accounts to perform SMB authentication and carries a base score of 9.3. Additional high-severity issues such as CVE-2026-64633 with a perfect 10.0 score were also resolved in the patches. The company updated its disclosure to include seven vulnerabilities fixed in version 13.1.0.7034 after initially reporting six. Patches are now available for both the 13.x and 12.x branches, with the latest 12.3 Patch 1 backporting several fixes from the 13 series.

Top 10 Security Stories: WordPress XSS Flaw, PHP Vulnerabilities, and VMware ESX Issues Lead Weekly Roundup

Security NEXT has published its weekly ranking of the most viewed articles for the period from August 2 to August 8, 2026. The list highlights critical vulnerabilities affecting widely used platforms including WordPress, PHP, pgAdmin 4, VMware ESX, and Chrome. Several entries focus on newly released security updates and ongoing exploitation warnings issued by US authorities. The ranking also includes real-world incidents such as credit card skimming by employees and data leaks caused by phishing attacks. This weekly overview reflects the topics that drew the highest attention from the Japanese cybersecurity community during the specified week.

Prepare for Summer Vacation: Patch Tuesday Overlaps with Obon Holiday Week Raises Risks

As August approaches and organizations enter summer vacation season, many will face a challenging overlap between Microsoft's Patch Tuesday and Japan's Obon holiday week in 2026. System administrators and security teams are often unavailable during extended breaks, leading to slower detection, reporting, and remediation of threats. Ransomware campaigns frequently target periods such as evenings, weekends, and consecutive holidays when response times are delayed. Experts recommend completing software updates on servers, network devices, and endpoints before departure to close known vulnerabilities. Security product definition files should be refreshed, unused systems powered down after risk assessment, and basic controls verified in advance. The advisory from Security NEXT highlights that dispersed vacation schedules in some organizations still leave concentrated risk windows for others.

Critical Remote Code Execution Flaw Patched in Veeam ONE Backup Management Product

Veeam Software disclosed six vulnerabilities in its backup environment operations management product Veeam ONE on July 29, 2026. The most severe issue, tracked as CVE-2026-64633, permits unauthenticated remote code execution on the agent host and received a maximum CVSS v4.0 base score of 10.0, rated Critical. A second flaw, CVE-2026-58075, allows unauthenticated arbitrary file reads that can lead to local privilege escalation and carries a CVSS score of 8.7. The vendor released updated versions addressing all six issues in Veeam ONE 13.1. Security researchers and administrators are urged to apply the patches immediately given the high severity and lack of authentication requirements for the critical vulnerability.