CVE-2018-21122
Certain NETGEAR devices are affected by denial of service. This affects GS110EMX before 1.0.0.9,...
Certain NETGEAR devices are affected by denial of service. This affects GS110EMX before 1.0.0.9, GS810EMX before 1.0.0.5, XS512EM before 1.0.0.6, and XS724EM before 1.0.0.6.
Attack profile
How easy it is to exploit
- Attack vector
- Adjacent network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Certain NETGEAR devices are affected by denial of service. This affects GS110EMX before 1.0.0.9, GS810EMX before 1.0.0.5, XS512EM before 1.0.0.6, and XS724EM before 1.0.0.6.
- Record
CVE-2018-21122- CVSS 3.0
- 6.5 Medium
CVSS:3.0/AC:L/AV:A/A:H/C:N/I:N/PR:N/S:U/UI:N - Updated
- 2026-11-02
EUVDEUVD-2018-13640
Certain NETGEAR devices are affected by denial of service. This affects GS110EMX before 1.0.0.9, GS810EMX before 1.0.0.5, XS512EM before 1.0.0.6, and XS724EM before 1.0.0.6.
- Record
EUVD-2018-13640- CVSS 3.0
- 6.5 Medium
CVSS:3.0/AC:L/AV:A/A:H/C:N/I:N/PR:N/S:U/UI:N - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-7cg3-666j-3r3x No score
Certain NETGEAR devices are affected by denial of service. This affects GS110EMX before 1.0.0.9,...
Certain NETGEAR devices are affected by denial of service. This affects GS110EMX before 1.0.0.9, GS810EMX before 1.0.0.5, XS512EM before 1.0.0.6, and XS724EM before 1.0.0.6.
- Record
GHSA-7cg3-666j-3r3x- Updated
- 2026-11-02
NVD
Certain NETGEAR devices are affected by denial of service. This affects GS110EMX before 1.0.0.9, GS810EMX before 1.0.0.5, XS512EM before 1.0.0.6, and XS724EM before 1.0.0.6.
- Record
CVE-2018-21122- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS 3.0
- 6.5 Medium
CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS 2.0
- 3.3 Low
AV:A/AC:L/Au:N/C:N/I:N/A:P - Weakness
- CWE-20
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2018-21122 is a medium vulnerability (CVSS 6.5) in Netgear Gs110emx Firmware, published April 22, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.53%, the 45th percentile. No source names a fixed version.