The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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isolated-vm is an Access to multiple isolates
Affected versions of this package are vulnerable to Privilege Escalation. Misuse of Reference and other transferable APIs may lead to access to nodejs isolate.
Affected versions have API pitfalls which make it possible for implementers to expose supposed secure isolates to the permissions of the main nodejs isolate.
Reference objects allow access to the underlying reference's full prototype chain. In an environment where the implementer has exposed a Reference instance to an attacker, they would be able to use it to acquire a Reference to the nodejs context's Function object.
Similar application-specific attacks could be possible by modifying the local prototype of other API objects.
Access to NativeModule objects could allow an attacker to load and run native code from anywhere on the filesystem. If combined with, for example, a file upload API, this would allow for arbitrary code execution.