CVE-2025-64393
waiting for further signalsZero needs more public information before it can validate it.GHSA-6m95-66x2-x5hx ↗EUVD-2025-211039 ↗
description
Veeam Backup & Replication is affected by an unsafe deserialization issue. An attacker with Backup Viewer access could run code with SYSTEM-level privileges on the backup server; this requires access to an account assigned that role.
mitigation
Upgrade Backup and Replication to 12.3.2.4934 or later.
fixed in 12.3.2.4934
outcome
Contextual: an exploit technique exists, but no deterministic check could cover this one.
source signals
Public signals that triggered or updated the pipeline. These are inputs for the deltas above.
- 2026-10-07 08:48Zghsa: trigger signal, started the run
- 2026-10-07 08:48Zcve.org record for CVE-2025-64393
this entry in the feed
GET /api/v1/feed/CVE-2025-64393
{ "etk_id": "ETK-2026-863", "cve_id": "CVE-2025-64393", "display_id": "CVE-2025-64393", "ghsa_id": "GHSA-6m95-66x2-x5hx", "euvd_id": "EUVD-2025-211039", "status": "published", "anchor_state": "anchored", "title": "Unsafe deserialization in Veeam Backup & Replication", "summary": "Veeam Backup & Replication is affected by an unsafe deserialization issue. An attacker with Backup Viewer access could run code with SYSTEM-level privileges on the backup server; this requires access to an account assigned that role.", "mitigation": "Upgrade Backup and Replication to 12.3.2.4934 or later.", "vendor": "veeam", "product": "Backup and Replication", "affected": [ { "affected_notes": [], "affected_ranges": [ ">= 12, < 12.3.2.4934" ], "ecosystem": null, "fixed_versions": [ "12.3.2.4934" ], "package_name": "Backup and Replication", "purl": null } ], "cwes": null, "cvss_score": 9.4, "cvss_src": "cna_vendor", "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "epss_score": 0.0036, "epss_percentile": 0.2834, "epss_asof": "2026-10-20", "automation": "contextual", "check": false, "check_confidence_basis": null, "exploit": false, "pipeline_minutes": 11.96824575, "t0_at": "2026-10-07T08:48:49.509000+00:00", "signals": { "trigger_signal": { "at": "2026-10-07T08:48:49.509000+00:00", "days": 0, "is_lower_bound": false, "measured_at": "2026-10-07T08:48:49.509000+00:00", "url": "https://github.com/advisories/GHSA-6m95-66x2-x5hx" } } }
published 2026-10-07 09:53Z
last change 2026-10-21 18:17Z
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