Security readout for executives and security teams
Plain-English summary
CVE-2021-25949 affects set-getter 0.1.0. The issue is prototype pollution, where unsafe object handling can alter shared JavaScript object behavior. The reported impact is denial of service and possible remote code execution. Business urgency depends on whether this package version is present and reachable from attacker-controlled input.
Executive priority
Treat this as dependency hygiene with potentially serious impact but incomplete public severity data. Prioritize confirming presence and reachability before emergency action. Escalate if the affected package is in internet-facing request paths.
Technical view
The affected product is set-getter version 0.1.0. Public references identify prototype pollution in the package code, with impact described as denial of service and possible remote code execution. The source bundle provides no CVSS score, CWE, confirmed patch version, or detailed remediation advisory.
Likely exposure
Exposure is limited to applications or build artifacts that depend on set-getter 0.1.0, directly or transitively. Risk is higher if untrusted input can influence property paths or object keys processed by the package.
Exploitation context
The source bundle does not show CISA KEV listing or cited evidence of active exploitation. Public information states potential denial of service and possible remote code execution, but does not establish exploit availability, exploitation in the wild, or practical prerequisites.
Researcher notes
The public record is sparse: affected version and impact are stated, but scoring, CWE mapping, patch status, and exploit evidence are absent from the bundle. Avoid assuming RCE practicality without local reachability analysis and vendor confirmation.
Mitigation direction
- Inventory direct and transitive dependencies for set-getter 0.1.0.
- Check current package or vendor guidance for a patched or recommended replacement.
- Remove or replace set-getter where business logic does not require it.
- Reduce exposure of code paths accepting attacker-controlled object keys or paths.
- Prioritize remediation if the package is used in request-handling code.
Validation and detection
- Review lockfiles and SBOMs for set-getter version 0.1.0.
- Check production build artifacts, not only source manifests.
- Identify whether untrusted input reaches set-getter usage.
- Confirm no active services still deploy the affected dependency.
- Document compensating controls if immediate removal is not possible.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
Execution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2021-25949 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25949CVE reference · x_refsource_MISC
- https://github.com/doowb/set-getter/blob/5bc2750fe1c3db9651d936131be187744111378d/index.js#L56CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.