Security readout for executives and security teams
Plain-English summary
This issue can let someone abuse the web administration panel of specific NETGEAR ProSAFE Plus switches to crash or disrupt the device. The known impact is denial of service, not confirmed data theft or remote code execution. Business urgency depends on whether these switches are deployed and whether their admin panels are reachable.
Executive priority
Treat this as a targeted infrastructure availability risk. Prioritize sites where affected switches support critical connectivity or have broadly reachable management interfaces. Escalate if inventory confirms v2.6.0.43 in production.
Technical view
CVE-2020-35230 describes multiple integer overflow parameters in the web administration panel of NETGEAR JGS516PE and GS116Ev2 switches running v2.6.0.43. The source states most integer parameters sent through the web server can be abused for denial of service. No CVSS, CWE, patch, or exploit-in-the-wild evidence is provided in the bundle.
Likely exposure
Exposure is most likely where affected NETGEAR JGS516PE or GS116Ev2 switches run firmware v2.6.0.43 and expose the web administration panel to users, management networks, or broader internal networks.
Exploitation context
The bundle does not show CISA KEV listing or active exploitation evidence. A public NCC Group advisory exists, so defenders should assume technical details may be available, but the provided evidence supports denial of service only.
Researcher notes
The public bundle lacks CVSS, CWE mapping, detailed parameter names, patch status, and exploit status. Analysis should stay scoped to denial of service through web administration integer overflows on the named devices and firmware version.
Mitigation direction
- Inventory NETGEAR JGS516PE and GS116Ev2 switches and record firmware versions.
- Check NETGEAR guidance for fixed firmware or vendor-approved mitigations.
- Limit web administration panel access to trusted management networks only.
- Disable unnecessary administrative exposure where operationally possible.
- Plan replacement or upgrade if affected firmware cannot be remediated.
Validation and detection
- Confirm whether any JGS516PE or GS116Ev2 device runs v2.6.0.43.
- Verify the web administration panel is not reachable from untrusted networks.
- Review network monitoring for unexplained switch resets or management-plane instability.
- Check change records for firmware updates or compensating access controls.
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.
CVE-2020-35230 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.