CVE-2021-45523
NETGEAR R7000 devices before 1.0.9.42 are affected by a buffer overflow by an authenticated user.
NETGEAR R7000 devices before 1.0.9.42 are affected by a buffer overflow by an authenticated user.
Attack profile
How easy it is to exploit
- Attack vector
- Adjacent network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
NETGEAR R7000 devices before 1.0.9.42 are affected by a buffer overflow by an authenticated user.
- Record
CVE-2021-45523- CVSS 3.1
- 5.7 Medium
CVSS:3.1/AC:L/AV:A/A:H/C:N/I:N/PR:L/S:U/UI:N - Updated
- 2026-11-02
EUVDEUVD-2021-32289
NETGEAR R7000 devices before 1.0.9.42 are affected by a buffer overflow by an authenticated user.
- Record
EUVD-2021-32289- CVSS 3.1
- 5.7 Medium
CVSS:3.1/AC:L/AV:A/A:H/C:N/I:N/PR:L/S:U/UI:N - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-qmw2-f5xc-5j93 No score
NETGEAR R7000 devices before 1.0.9.42 are affected by a buffer overflow by an authenticated user.
NETGEAR R7000 devices before 1.0.9.42 are affected by a buffer overflow by an authenticated user.
- Record
GHSA-qmw2-f5xc-5j93- Weakness
- CWE-120
- Updated
- 2026-11-02
NVD
NETGEAR R7000 devices before 1.0.9.42 are affected by a buffer overflow by an authenticated user.
- Record
CVE-2021-45523- CVSS 3.1
- 5.7 Medium
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - CVSS 2.0
- 6.8 Medium
AV:N/AC:L/Au:S/C:N/I:N/A:C - Weakness
- CWE-120
- 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-2021-45523 is a medium vulnerability (CVSS 5.7) in Netgear R7000 Firmware, published December 26, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.06%, the 64th percentile. No source names a fixed version.