CVE-2018-21109
NETGEAR R7800 devices before 1.0.2.60 are affected by command injection by an authenticated user.
NETGEAR R7800 devices before 1.0.2.60 are affected by command injection by an authenticated user.
Attack profile
How easy it is to exploit
- Attack vector
- Adjacent network
- Complexity
- Low
- Privileges needed
- High
- 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 1.0.2.60 are affected by command injection by an authenticated user.
- Record
CVE-2018-21109- CVSS 3.0
- 6.8 Medium
CVSS:3.0/AC:L/AV:A/A:H/C:H/I:H/PR:H/S:U/UI:N - Updated
- 2026-11-02
EUVDEUVD-2018-13627
NETGEAR R7800 devices before 1.0.2.60 are affected by command injection by an authenticated user.
- Record
EUVD-2018-13627- CVSS 3.0
- 6.8 Medium
CVSS:3.0/AC:L/AV:A/A:H/C:H/I:H/PR:H/S:U/UI:N - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-xh23-mwfj-ffgr No score
NETGEAR R7800 devices before 1.0.2.60 are affected by command injection by an authenticated user.
NETGEAR R7800 devices before 1.0.2.60 are affected by command injection by an authenticated user.
- Record
GHSA-xh23-mwfj-ffgr- Updated
- 2026-11-02
NVD
NETGEAR R7800 devices before 1.0.2.60 are affected by command injection by an authenticated user.
- Record
CVE-2018-21109- CVSS 3.1
- 6.8 Medium
CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H - CVSS 3.0
- 6.8 Medium
CVSS:3.0/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 5.2 Medium
AV:A/AC:L/Au:S/C:P/I:P/A:P - Weakness
- CWE-78
- 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-2018-21109 is a medium vulnerability (CVSS 6.8) in Netgear R7800 Firmware, published April 23, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.85%, the 58th percentile. No source names a fixed version.