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.

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Veeam Software has issued updates for its backup environment monitoring tool Veeam ONE to resolve multiple security vulnerabilities, including issues rated as critical.

The company published a security advisory on 25 August 2026 detailing the fixes for the 13.x branch. Among the addressed flaws is CVE-2026-65641, which permits a service account to perform SMB authentication. This vulnerability received a CVSSv4.0 base score of 9.3 and is rated Critical.

The fixes are delivered in Veeam ONE 13.1 Patch 0 (13.1.0.7233) and Veeam ONE 13.0.2 Patch 1 (13.0.2.7159). The latter release also incorporates vulnerabilities previously corrected in 13.1.0.7034, including CVE-2026-64633 that carries a maximum CVSS score of 10.0.

Veeam initially reported six vulnerabilities resolved in 13.1.0.7034 but later added CVE-2026-64632, bringing the total to seven. All seven issues are now included in the 13.0.2 Patch 1 release.

For users remaining on the 12.x branch, the company released Veeam ONE 12.3 Patch 1 (12.3.0.7165). This update backports fixes for CVE-2026-58074, CVE-2026-64631, and CVE-2026-64632 that were originally addressed in the 13.1.0.7034 release.

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