TI-2020-18226 Aliases CVE-2020-35782 GHSA-j8r6-c45m-jv6q

Certain NETGEAR devices are affected by lack of access control at the function level.

LOW 39Published 2020-12-29 · Updated 2024-08-04

Key facts

Attack vector: Adjacent network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: None · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

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.

Why it matters now

EPSS 0.01673 76th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 8

CPE	Versions	Role	Vendor
cpe:2.3:o:netgear:jgs516pe_firmware::::::::	before 2.6.0.48	Vulnerable	NETGEAR
cpe:2.3:h:netgear:jgs516pe:-:::::::*	not specified by NVD	Running on	NETGEAR
cpe:2.3:o:netgear:jgs524e_firmware::::::::	before 2.6.0.48	Vulnerable	NETGEAR
cpe:2.3:h:netgear:jgs524e:v2:::::::*	v2	Running on	NETGEAR
cpe:2.3:o:netgear:jgs524pe_firmware::::::::	before 2.6.0.48	Vulnerable	NETGEAR
cpe:2.3:h:netgear:jgs524pe:-:::::::*	not specified by NVD	Running on	NETGEAR
cpe:2.3:o:netgear:gs116e_firmware::::::::	before 2.6.0.48	Vulnerable	NETGEAR
cpe:2.3:h:netgear:gs116e:v2:::::::*	v2	Running on	NETGEAR

cpe:2.3:o:netgear:jgs516pe_firmware:*:*:*:*:*:*:*:* Versions before 2.6.0.48 Vulnerable ·NETGEAR
cpe:2.3:h:netgear:jgs516pe:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
cpe:2.3:o:netgear:jgs524e_firmware:*:*:*:*:*:*:*:* Versions before 2.6.0.48 Vulnerable ·NETGEAR
cpe:2.3:h:netgear:jgs524e:v2:*:*:*:*:*:*:* Versions v2 Running on ·NETGEAR
cpe:2.3:o:netgear:jgs524pe_firmware:*:*:*:*:*:*:*:* Versions before 2.6.0.48 Vulnerable ·NETGEAR
cpe:2.3:h:netgear:jgs524pe:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
cpe:2.3:o:netgear:gs116e_firmware:*:*:*:*:*:*:*:* Versions before 2.6.0.48 Vulnerable ·NETGEAR
cpe:2.3:h:netgear:gs116e:v2:*:*:*:*:*:*:* Versions v2 Running on ·NETGEAR

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2020-35782
2026-10-03 Alias added: GHSA-j8r6-c45m-jv6q

References

Exploit 1

https://research.nccgroup.com/2021/03/08/technical-advisory-multiple-vulnerabilities-in-netgear-prosafe-plus-jgs516pe-gs116ev2-switches/

Advisory 1

https://kb.netgear.com/000062636/Security-Advisory-for-Missing-Function-Level-Access-Control-on-Some-Smart-Managed-Plus-Switches-PSV-2020-0378

TI-2020-17908 The NSDP protocol implementation on NETGEAR JGS516PE/GS116Ev2 v2.6.0.43 devices was… CVSS 3.1HIGH 8.8
TI-2020-18245 Certain NETGEAR devices are affected by incorrect configuration of security settings. CVSS 3.1HIGH 8.3
TI-2020-17906 The authentication token required to execute NSDP write requests on NETGEAR… CVSS 3.1HIGH 8.8
TI-2020-17900 The CSRF protection mechanism implemented in the web administration panel on NETGEAR… CVSS 3.1HIGH 8.8
TI-2020-17899 The hashing algorithm implemented for NSDP password authentication on NETGEAR… CVSS 3.1HIGH 8.8
TI-2020-17904 A buffer overflow vulnerability in the access control section on NETGEAR… CVSS 3.1HIGH 7.2

See all 17 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences