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CVE-2025-48984 is a critical remote code execution vulnerability in the Backup Server component of Veeam Backup & Replication. The issue affects version 12.3.2.3617 and earlier version 12 builds and allows an authenticated Active Directory domain user to execute arbitrary code remotely on the Backup Server. Available reporting ties this issue closely to other deserialization flaws in the same product line and indicates that only domain-joined backup servers are affected. Specific vulnerable functions or code paths for this CVE are not currently available in the provided information, but the available evidence supports classification as an unsafe deserialization issue in the Backup Server component.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
11 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A critical remote code execution vulnerability in the Veeam Backup Server component affecting authenticated domain users, described as closely related to CVE-2025-48983 and using similar exploitation techniques.
A critical remote code execution vulnerability in Veeam Backup & Replication with a CVSS score of 9.9.
A critical remote code execution vulnerability in Veeam Backup & Replication that allows an authenticated domain user to execute code on the Backup Server.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.