Unauthenticated RCE via two-step REST API race
Published Mar 25, 2026 · Updated Mar 25, 2026
Remote code execution in N2WS Backup & Recovery before 4.3.2 allows remote attackers to execute code through the RESTful API. The vendor identifies a two-step exploit and CISA maps the flaw to a race condition, but neither source discloses the REST API endpoints, shared resource, or unsafe state transition involved. Network access to the API is required; no authentication or user interaction is required, and successful exploitation runs attacker-controlled code.
Summary
What happened
Remote code execution in N2WS Backup & Recovery before 4.3.2 allows remote attackers to execute code through the RESTful API. The vendor identifies a two-step exploit and CISA maps the flaw to a race condition, but neither source discloses the REST API endpoints, shared resource, or unsafe state transition involved. Network access to the API is required; no authentication or user interaction is required, and successful exploitation runs attacker-controlled code.
The record
- CVE
- CVE-2025-32991
- Published
- Mar 25, 2026
- Updated
- Mar 25, 2026
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-362, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Mar 25, 2026CVE publishedPublication date reported by the CVE source.
- Mar 25, 2026Record updatedLatest update available in the CVE record.
Exploitability
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What is affected?
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Published CVSS scores
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Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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