Cyber Resilience

CVE-2021-45528

High

Published: 26 December 2021

Published
26 December 2021
Modified
21 November 2024
KEV Added
Patch
CVSS Score v3.1 8.1 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:L/I:H/A:H
EPSS Score 0.0017 38.1th percentile
Risk Priority 16 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-45528 is a high-severity Classic Buffer Overflow (CWE-120) vulnerability in Netgear R6300V2 Firmware. Its CVSS base score is 8.1 (High).

Operationally, ranked at the 38.1th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

Certain NETGEAR devices are affected by a buffer overflow by an authenticated user. This affects R6300v2 before 1.0.4.52, R6400 before 1.0.1.52, R6900 before 1.0.2.8, R7000 before 1.0.9.88, R7900 before 1.0.3.18, R8000 before 1.0.4.46, R7900P before 1.4.1.50, R8000P before 1.4.1.50, RAX75…

more

before 1.0.3.88, RAX80 before 1.0.3.88, and WNR3500Lv2 before 1.2.0.62.

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

netgear
r6300v2 firmware
≤ 1.0.4.52
netgear
r6400 firmware
≤ 1.0.1.52
netgear
r6900 firmware
≤ 1.0.2.8
netgear
r7000 firmware
≤ 1.0.9.88
netgear
r7900 firmware
≤ 1.0.3.18
netgear
r7900p firmware
≤ 1.4.1.50
netgear
r8000 firmware
≤ 1.0.4.46
netgear
r8000p firmware
≤ 1.4.1.50
netgear
rax75 firmware
≤ 1.0.3.88
netgear
rax80 firmware
≤ 1.0.3.88
+1 more product configuration(s) — see NVD for full list

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-120

Platform-independent managed code eliminates the need for unchecked native buffer copies that are the root cause of classic buffer overflows.

References