CVE-2025-64394

LOWCVSS 4.3 · MEDIUM

Signal is active with 1 mentions in latest observed window

Immediate actions

Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

A vulnerability allowing a low-privileged local user to write arbitrary files with SYSTEM privileges during the installation of Veeam Backup for Microsoft 365, which can lead to privilege escalation or denial of service.

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0.0/ 10 priority

Sources & remediation

Other references

https://www.veeam.com/kb4957

Weakness type (CWE)

CWE-1386

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

1 mentions across 1 observed day

What's happening

1 total mentions across 1 day

Deep dive

Activity timeline1 mentions / 1d

Referenced assets1 URL

By indicator

https://vulnipulse.com/vendors/veeam

Full discourse1 post

VulniPulse@vulnipulse23h
Veeam: Backup & Replication 13.1.2 fixes critical CVE-2026-105477 and three more (KB4948, CVSS 9.1). Backup for Microsoft 365 8.6 fixes CVE-2025-64394 (KB4957, 9.0). Veeam ONE 13.1 P1 fixes CVE-2026-107671 (8.5). https://vulnipulse.com/vendors/veeam
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