CVE-2020-35782 json
Certain NETGEAR devices are affected by lack of access control at the function level.
published 2020-12-29 5 y ago modified 2026-06-17 4 mo ago also EUVD-2020-23437
- cvss
- 8.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.7%
- EPSS 1.7% chance of exploitation in 30 days, percentile 76%
- public exploits
- 0
- none known
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.
Patch / fix
- netgear jgs516pe_firmware 2.6.0.48
- netgear jgs524e_firmware 2.6.0.48
- netgear jgs524pe_firmware 2.6.0.48
- netgear gs116e_firmware 2.6.0.48
Exploit prediction
1.67% chance of exploitation in the next 30 days, higher than 76% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- research.nccgroup.com https://research.nccgroup.com/2021/03/08/technical-advisory-multiple-vulnerabilities-in-netgear-prosafe-plus-jgs516pe-gs116ev2-switches/ referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.1 | CVSS:3.1/AC:L/AV:A/A:H/C:N/I:H/PR:N/S:U/UI:N |
| CNA | 3.1 | 8.1 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H |
| NVD | 3.1 | 8.1 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H |
| NVD | 2.0 | 7.8 | AV:A/AC:L/Au:N/C:N/I:C/A:C |
References
-
research.nccgroup.com
/2021/03/08/technical-advisory-multiple-vulnerabilities-in-netgear-prosafe-plus-jgs516pe-gs116ev2-switches/
exploit, third-party-advisory
-
kb.netgear.com
/000062636/Security-Advisory-for-Missing-Function-Level-Access-Control-on-Some-Smart-Managed-Plus-Switches-PSV
vendor-advisory
Sources
- CVE List CVE-2020-35782
- NVD CVE-2020-35782
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