CVE-2025-23121
Published: 19 June 2025
Summary
CVE-2025-23121 is a high-severity Code Injection (CWE-94) vulnerability in Veeam Veeam Backup \& Replication. Its CVSS base score is 8.8 (High).
Operationally, ranked in the top 19.8% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
CVE-2025-23121 is a remote code execution vulnerability affecting the Backup Server component in Veeam products. It is tracked under CWE-94 and carries a CVSS 3.1 base score of 8.8, reflecting network attack vector, low attack complexity, and requirements for low-privileged authentication.
An authenticated domain user can exploit the flaw over the network to execute arbitrary code on the Backup Server, resulting in full confidentiality, integrity, and availability impact on the affected system.
The referenced Veeam knowledge base article KB4743 addresses mitigation steps for the issue. The associated EPSS score remains low and unchanged at 0.0131 with no observed increase after disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-18675
Vulnerability details
A vulnerability allowing remote code execution (RCE) on the Backup Server by an authenticated domain user
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Makes persistent code injection into loaded programs impossible when the executable image itself resides on hardware-protected read-only media.
Dynamically generated code can be produced and executed inside the isolated chamber, preventing host compromise from code-injection payloads.
Validates inputs used in dynamic code generation to block injected directives.
Directly prevents execution of attacker-supplied code written into data memory regions.