CVE-2018-21116
NETGEAR XR500 devices before 2.3.2.32 are affected by remote code execution by unauthenticated...
NETGEAR XR500 devices before 2.3.2.32 are affected by remote code execution by unauthenticated attackers.
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 XR500 devices before 2.3.2.32 are affected by remote code execution by unauthenticated attackers.
- Record
CVE-2018-21116- 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-2018-13634
NETGEAR XR500 devices before 2.3.2.32 are affected by remote code execution by unauthenticated attackers.
- Record
EUVD-2018-13634- 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-v3cf-6qqq-jmch No score
NETGEAR XR500 devices before 2.3.2.32 are affected by remote code execution by unauthenticated...
NETGEAR XR500 devices before 2.3.2.32 are affected by remote code execution by unauthenticated attackers.
- Record
GHSA-v3cf-6qqq-jmch- Updated
- 2026-11-02
NVD
NETGEAR XR500 devices before 2.3.2.32 are affected by remote code execution by unauthenticated attackers.
- Record
CVE-2018-21116- 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-2018-21116 is a high vulnerability (CVSS 8.8) in Netgear Xr500 Firmware, published April 22, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.05%, the 64th percentile. No source names a fixed version.