CVE-2018-21118
NETGEAR XR500 devices before 2.3.2.32 are affected by authentication bypass.
NETGEAR XR500 devices before 2.3.2.32 are affected by authentication bypass.
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 authentication bypass.
- Record
CVE-2018-21118- 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-2018-13636
NETGEAR XR500 devices before 2.3.2.32 are affected by authentication bypass.
- Record
EUVD-2018-13636- 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-qr3r-xgjr-g75m No score
NETGEAR XR500 devices before 2.3.2.32 are affected by authentication bypass.
NETGEAR XR500 devices before 2.3.2.32 are affected by authentication bypass.
- Record
GHSA-qr3r-xgjr-g75m- Updated
- 2026-11-02
NVD
NETGEAR XR500 devices before 2.3.2.32 are affected by authentication bypass.
- Record
CVE-2018-21118- 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 - Weakness
- CWE-287
- 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-2018-21118 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 0.70%, the 53rd percentile. No source names a fixed version.