Certain NETGEAR devices are affected by authentication bypass.
Priority LOW 39CWE-287Published · Updated
Key facts
- Attack vector
- Adjacent network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-287.
Summary
Certain NETGEAR devices are affected by authentication bypass. This affects GS810EMX before 1.0.0.5, XS512EM before 1.0.0.6, and XS724EM before 1.0.0.6.
Why it matters now
EPSS 0.007 53rd percentileScored 2026-11-07
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 · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:netgear:gs810emx_firmware:*:*:*:*:*:*:*:* | before 1.0.0.5 | Vulnerable | NETGEAR |
| cpe:2.3:h:netgear:gs810emx:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NETGEAR |
| cpe:2.3:o:netgear:xs512em_firmware:*:*:*:*:*:*:*:* | before 1.0.0.6 | Vulnerable | NETGEAR |
| cpe:2.3:h:netgear:xs512em:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NETGEAR |
| cpe:2.3:o:netgear:xs724em_firmware:*:*:*:*:*:*:*:* | before 1.0.0.6 | Vulnerable | NETGEAR |
| cpe:2.3:h:netgear:xs724em:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NETGEAR |
- cpe:2.3:o:netgear:gs810emx_firmware:*:*:*:*:*:*:*:* Versions before 1.0.0.5 Vulnerable ·NETGEAR
- cpe:2.3:h:netgear:gs810emx:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
- cpe:2.3:o:netgear:xs512em_firmware:*:*:*:*:*:*:*:* Versions before 1.0.0.6 Vulnerable ·NETGEAR
- cpe:2.3:h:netgear:xs512em:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
- cpe:2.3:o:netgear:xs724em_firmware:*:*:*:*:*:*:*:* Versions before 1.0.0.6 Vulnerable ·NETGEAR
- cpe:2.3:h:netgear:xs724em:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2018-21121
- 2026-10-03 Alias added: GHSA-hx9r-wh6w-pp9p
References
More NETGEAR Gs810emx Firmware vulnerabilities
- TI-2020-16348 Certain NETGEAR devices are affected by authentication bypass. CVSS 3.1HIGH 8.8
- TI-2018-15105 NETGEAR GS810EMX devices before 1.0.0.5 are affected by disclosure of sensitive information. CVSS 3.1MEDIUM 6.5
- TI-2019-14878 Certain NETGEAR devices are affected by disclosure of sensitive information. CVSS 3.1MEDIUM 6.5
- TI-2018-15084 Certain NETGEAR devices are affected by denial of service. CVSS 3.1MEDIUM 6.5
- TI-2019-14896 Certain NETGEAR devices are affected by lack of access control at the function level. CVSS 3.1MEDIUM 6.0
Sources
- CVE-2018-21121 · CVE Program
- CVE-2018-21121 · NVD
- FIRST EPSS
- GHSA-hx9r-wh6w-pp9p · GitHub Advisory Database · CC BY 4.0
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