Myth #9: A Vulnerability Scanner Alert Is a (Confirmed) Vulnerability

Myth #9: A vulnerability scanner alert is a (confirmed) vulnerability

𝘙𝘦𝘢𝘭𝘪𝘵𝘺: 𝑃𝑜𝑡𝑒𝑛𝑡𝑖𝑎𝑙 𝑣𝑢𝑙𝑛𝑒𝑟𝑎𝑏𝑖𝑙𝑖𝑡𝑖𝑒𝑠 𝑟𝑒𝑞𝑢𝑖𝑟𝑒 𝑣𝑒𝑟𝑖𝑓𝑖𝑐𝑎𝑡𝑖𝑜𝑛 𝑎𝑛𝑑 𝑠𝑢𝑝𝑝𝑜𝑟𝑡𝑖𝑛𝑔 𝑒𝑣𝑖𝑑𝑒𝑛𝑐𝑒.

Automated vulnerability scanners support the identification of potential security weaknesses. However, an alert may be based on a software version, a configuration indicator, or a response requiring further interpretation. It does not by itself mean that a vulnerability is present or even exploitable in the tested system. For example, a successful response to an unorthodox request does not necessarily demonstrate an access-control flaw. Verification must establish whether the requester accessed information or functionality beyond their permissions.

Within AIAGENT4CYBER, we are investigating how specialised AI agents can collaborate on security testing. Potential vulnerabilities reported by a testing agent are checked by a separate verification agent, which attempts to reproduce the reported behaviour and assess whether it demonstrates a security weakness.

The approach aims to support:

- Reproduction of suspected vulnerabilities within an authorised testing scope.

- Collection of evidence demonstrating the observed behaviour and security impact.

- Explicit distinction between unverified alerts and confirmed findings.

Verification can help to recognize and reduce false positives and aids remediation decisions. The same requirement applies to AI-generated reports: conclusions should be supported by evidence that can be inspected and reproduced.