Security readout for executives and security teams
Plain-English summary
This CVE describes a weakness in the web administration panel of NETGEAR JGS516PE and GS116Ev2 switches running v2.6.0.43. The CSRF protection could be bypassed by leaving out the CSRF token. Business risk depends on whether these switch admin panels are reachable and used by authenticated administrators.
Executive priority
Prioritize if these switches manage production networks or have web administration reachable beyond a restricted management segment. The absence of CVSS and KEV evidence lowers urgency, but weak administrative controls on network devices can still create operational risk.
Technical view
The reported issue is a CSRF protection bypass in the device web UI: requests lacking the CSRF token parameter were accepted. The bundle does not provide CVSS, CWE, detailed impact, patch version, or proof of active exploitation. Treat impact analysis as incomplete until vendor guidance and the NCC advisory are reviewed.
Likely exposure
Exposure is most likely where affected NETGEAR JGS516PE or GS116Ev2 v2.6.0.43 switch administration panels are reachable from user workstations or broader networks. Internet-exposed management interfaces would increase concern, but the bundle does not state exposure prevalence.
Exploitation context
The source bundle does not cite KEV listing or active exploitation. CSRF generally requires interaction with an authenticated administrator, but this CVE’s provided description only confirms token omission bypass behavior, not observed exploitation or full operational impact.
Researcher notes
The CVE record is sparse: affected fields are marked n/a, CVSS and CWE are absent, and only the description names the models and firmware. Use the NCC advisory and vendor materials to confirm affected builds, impact, and remediation before broad conclusions.
Mitigation direction
- Inventory NETGEAR JGS516PE and GS116Ev2 switches and confirm firmware versions.
- Check NETGEAR and NCC guidance for fixed firmware or official mitigations.
- Restrict switch administration panels to trusted management networks only.
- Require administrative access through controlled paths such as VPN or jump hosts.
- Review recent switch configuration changes for unexpected activity.
Validation and detection
- Identify devices running JGS516PE or GS116Ev2 firmware v2.6.0.43.
- Confirm management interfaces are not exposed to untrusted networks.
- Review vendor advisory material for affected versions and remediation status.
- Verify administrative change logs for unexplained configuration updates.
- Document compensating controls if fixed firmware is unavailable.
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.
Credential and access behavior lookup
The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2020-35223 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://research.nccgroup.com/2021/03/08/technical-advisory-multiple-vulnerabilities-in-netgear-prosafe-plus-jgs516pe-gs116ev2-switches/CVE 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.