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CVE-2026-58073 – Authentication Bypass / Agent Credential Theft – Veeam Service Provider Console 9.2

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Summary

CVE-2026-58073 is a critical authentication bypass vulnerability in Veeam Service Provider Console (VSPC) that allows an unauthenticated, network-based attacker to impersonate a managed agent and obtain that agent’s credentials. Rated Critical with a CVSS v4.0 base score of 9.5, it affects VSPC 9.2.1.33875 and all earlier version 9 builds.

Technical details

  • Root cause: Authentication bypass using an alternate path or channel (CWE-288) in the console’s agent management flow.
  • Trigger conditions: No authentication is required; the attacker impersonates a managed agent to the console.
  • Attack vector: Network (remote, unauthenticated).
  • Impact: The attacker obtains the impersonated agent’s credentials, resulting in high impact to confidentiality, integrity, and availability. Because VSPC provides multi-tenant backup management for hosting and MSP environments, a compromised console can expose many downstream customers.

Affected software

  • Veeam Service Provider Console 9.2.1.33875 and all earlier version 9 builds.

Severity

  • CVSS v4.0 base score: 9.5 (Critical)
  • CVSS v4.0 vector: CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

Mitigation and recommended actions

  • Immediate: Upgrade Veeam Service Provider Console to version 9.3.0.35057 or later, which resolves this vulnerability.
  • If no patch can be applied yet: No standalone workaround exists. Restrict network access to the console and its portal to trusted networks until patching is complete.

How IONIX identifies potentially affected assets

IONIX matches the following signals against data already collected when it crawled the asset; identifying the technology sends no request beyond that crawl.

  • Page title: Veeam Service Provider Console, Veeam Availability Console
  • Raw response body: Veeam Service Provider Console, Veeam Availability Console, Portal Administrator

References

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How IONIX’s External Exposure Management Platform Detects and Validates
Zero-Days to Shrink MTTR

1

Map your entire attack surface (continously)

IONIX uses multi-factor discovery methods, including DNS analysis, certificate mapping, metadata inspection, and more, to automatically map every internet-facing asset across your environment. This includes cloud instances, third-party platforms, shadow IT, and even forgotten infrastructure that traditional tools miss.

2

Monitor for new CVEs

Dozens of threat intel feeds using agentic technology are continuously analyzed to detect the appearance of proof-of-concept code, exploit kits, and indicators of active targeting. IONIX goes further by applying AI to proactively evaluate whether emerging vulnerabilities are likely to be exploited, even before PoCs go public.

3

Identify Potential External Exposures

Not all CVEs matter. IONIX filters vulnerabilities by asking attacker-centric questions: Can it be reached from the internet? Does it require authentication? Is it being exploited in the wild? This dramatically reduces noise and focuses teams on threats that can actually be weaponized.

4

Create Safe, Scalable Exploit Validations

IONIX transforms real-world PoCs into safe, non-intrusive test payloads that can be run in production environments without disruption. These simulations are precisely targeted to the systems that are vulnerable, ensuring rapid validation without unnecessary load.

5

Execute Exploit Validations

By combining context about software stack, versioning, exposure status, and reachability, IONIX ensures that only the right payloads are executed against the right assets, maximizing efficiency and minimizing risk.

6

Drive Fast and Actionable Remediation

Results are routed through integrations with ticketing, SOAR, and SIEM tools. Issues are written in plain language, bundled into remediation clusters, and prioritized based on asset criticality, exploitability, and blast radius. This shortens mean time to remediation (MTTR) and empowers teams to act with confidence.

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  • Mapping of all Assets with this Technology
  • Identification of potentially exposed assets to this CVE
  • Confirmation of verified exploitable assets
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