CVE-2019-20740
Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user....
Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user. This affects DGN2200v4 before 1.0.0.110, DGND2200Bv4 before 1.0.0.109, R7300 before 1.0.0.70, R8300 before 1.0.2.130, and R8500 before 1.0.2.130.
Attack profile
How easy it is to exploit
- Attack vector
- Adjacent network
- Complexity
- High
- Privileges needed
- High
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user. This affects DGN2200v4 before 1.0.0.110, DGND2200Bv4 before 1.0.0.109, R7300 before 1.0.0.70, R8300 before 1.0.2.130, and R8500 before 1.0.2.130.
- Record
CVE-2019-20740- CVSS 3.0
- 6.3 Medium
CVSS:3.0/AC:H/AV:A/A:H/C:H/I:H/PR:H/S:U/UI:R - Updated
- 2026-11-02
EUVDEUVD-2019-11279
Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user. This affects DGN2200v4 before 1.0.0.110, DGND2200Bv4 before 1.0.0.109, R7300 before 1.0.0.70, R8300 before 1.0.2.130, and R8500 before 1.0.2.130.
- Record
EUVD-2019-11279- CVSS 3.0
- 6.3 Medium
CVSS:3.0/AC:H/AV:A/A:H/C:H/I:H/PR:H/S:U/UI:R - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-9j2r-7wv5-9gxw No score
Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user....
Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user. This affects DGN2200v4 before 1.0.0.110, DGND2200Bv4 before 1.0.0.109, R7300 before 1.0.0.70, R8300 before 1.0.2.130, and R8500 before 1.0.2.130.
- Record
GHSA-9j2r-7wv5-9gxw- Updated
- 2026-11-02
NVD
Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user. This affects DGN2200v4 before 1.0.0.110, DGND2200Bv4 before 1.0.0.109, R7300 before 1.0.0.70, R8300 before 1.0.2.130, and R8500 before 1.0.2.130.
- Record
CVE-2019-20740- 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
- 6.3 Medium
CVSS:3.0/AV:A/AC:H/PR:H/UI:R/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-787
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2019-20740 is a medium vulnerability (CVSS 6.3) in Netgear Dgn2200 Firmware, published April 16, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.46%, the 40th percentile. No source names a fixed version.