CVE-2018-21158
NETGEAR R7800 devices before 1.0.2.46 are affected by incorrect configuration of security settings.
NETGEAR R7800 devices before 1.0.2.46 are affected by incorrect configuration of security settings.
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
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
NETGEAR R7800 devices before 1.0.2.46 are affected by incorrect configuration of security settings.
- Record
CVE-2018-21158- CVSS 3.0
- 8.8 High
CVSS:3.0/AC:L/AV:A/A:H/C:H/I:H/PR:N/S:U/UI:N - Updated
- 2026-11-02
EUVDEUVD-2018-13676
NETGEAR R7800 devices before 1.0.2.46 are affected by incorrect configuration of security settings.
- Record
EUVD-2018-13676- CVSS 3.0
- 8.8 High
CVSS:3.0/AC:L/AV:A/A:H/C:H/I:H/PR:N/S:U/UI:N - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-86x9-9m6v-vrvc No score
NETGEAR R7800 devices before 1.0.2.46 are affected by incorrect configuration of security settings.
NETGEAR R7800 devices before 1.0.2.46 are affected by incorrect configuration of security settings.
- Record
GHSA-86x9-9m6v-vrvc- Updated
- 2026-11-02
NVD
NETGEAR R7800 devices before 1.0.2.46 are affected by incorrect configuration of security settings.
- Record
CVE-2018-21158- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 3.0
- 8.8 High
CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 5.8 Medium
AV:A/AC:L/Au:N/C:P/I:P/A:P - 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-2018-21158 is a high vulnerability (CVSS 8.8) in Netgear R7800 Firmware, published April 27, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.63%, the 50th percentile. No source names a fixed version.