What’s Vulnerable › Vulnerabilities

CVE-2020-35782

• Severity: high (CVSS 8.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.7% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2020-12-30 · updated 2026-06-17

Description

Certain NETGEAR devices are affected by lack of access control at the function level. This affects JGS516PE before 2.6.0.48, JGS524Ev2 before 2.6.0.48, JGS524PE before 2.6.0.48, and GS116Ev2 before 2.6.0.48. The TFTP firmware update mechanism does not properly implement firmware validations, allowing remote attackers to write arbitrary data to internal memory.

Affected products

• NETGEAR Gs116E Firmware: before 2.6.0.48 — fixed in 2.6.0.48
• NETGEAR Jgs516Pe Firmware: before 2.6.0.48 — fixed in 2.6.0.48
• NETGEAR Jgs524E Firmware: before 2.6.0.48 — fixed in 2.6.0.48
• NETGEAR Jgs524Pe Firmware: before 2.6.0.48 — fixed in 2.6.0.48

How to fix

Upgrade to a fixed version: NETGEAR Gs116E Firmware 2.6.0.48; NETGEAR Jgs516Pe Firmware 2.6.0.48; NETGEAR Jgs524E Firmware 2.6.0.48; NETGEAR Jgs524Pe Firmware 2.6.0.48. Check the vendor advisory for mitigations.

References

• https://kb.netgear.com/000062636/Security-Advisory-for-Missing-Function-Level-Access-Control-on-Some-Smart-Managed-Plus-Switches-PSV-2020-0378
• https://research.nccgroup.com/2021/03/08/technical-advisory-multiple-vulnerabilities-in-netgear-prosafe-plus-jgs516pe-gs116ev2-switches/
• https://kb.netgear.com/000062636/Security-Advisory-for-Missing-Function-Level-Access-Control-on-Some-Smart-Managed-Plus-Switches-PSV-2020-0378
• https://research.nccgroup.com/2021/03/08/technical-advisory-multiple-vulnerabilities-in-netgear-prosafe-plus-jgs516pe-gs116ev2-switches/

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