Security readout for executives and security teams
Plain-English summary
Certain NETGEAR ProSAFE Plus JGS516PE and GS116Ev2 switches running v2.6.0.43 can let unauthenticated users change DHCP configuration. For a business, this could disrupt switch management or network operations if an exposed management interface is reachable by untrusted users.
Executive priority
Treat as a targeted network-infrastructure risk. Prioritize environments using the named NETGEAR switches, especially if management access is broadly reachable. Urgency is hard to quantify because severity and exploitation evidence are incomplete.
Technical view
The CVE describes an unauthenticated write-request flaw affecting DHCP configuration on NETGEAR JGS516PE/GS116Ev2 v2.6.0.43 devices. The source bundle provides no CVSS score, CWE, vendor fix details, or evidence of active exploitation.
Likely exposure
Exposure is most likely where affected switch management services are reachable from untrusted internal networks, guest networks, or the internet. The bundle does not provide CPEs or broader version ranges.
Exploitation context
The public advisory describes the vulnerability class, but the bundle does not establish active exploitation. CISA KEV status is false, and no exploit status is provided in the supplied sources.
Researcher notes
The provided record is sparse: no CVSS, CWE, CPE, patch status, or exploit telemetry. Analysis should remain limited to the named models, firmware v2.6.0.43, and unauthenticated DHCP configuration modification behavior.
Mitigation direction
- Identify JGS516PE and GS116Ev2 switches running firmware v2.6.0.43.
- Check NETGEAR support or advisory guidance for fixed firmware or approved mitigation.
- Restrict switch management access to trusted administrative networks only.
- Remove internet or guest-network reachability to switch management interfaces.
- Monitor DHCP configuration changes on affected switches.
Validation and detection
- Inventory switch model and firmware version from approved management records.
- Confirm whether management interfaces are reachable from untrusted networks.
- Review recent switch DHCP configuration changes for unauthorized modifications.
- Check vendor guidance before applying firmware or configuration changes.
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-2020-35226 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.