Cyber Resilience

CVE-2021-38523

Medium

Published: 11 August 2021

Published
11 August 2021
Modified
21 November 2024
KEV Added
Patch
CVSS Score v3.1 6.9 CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:H
EPSS Score 0.0066 71.5th percentile
Risk Priority 14 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-38523 is a medium-severity Out-of-bounds Write (CWE-787) vulnerability in Netgear R6400 Firmware. Its CVSS base score is 6.9 (Medium).

Operationally, ranked in the top 28.5% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

NETGEAR R6400 devices before 1.0.1.70 are affected by a stack-based buffer overflow by an authenticated user.

CWE(s)

Related Threats

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

Affected Assets

netgear
r6400 firmware
≤ 1.0.1.70

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-787

Out-of-bounds writes that corrupt control flow or inject shellcode are rendered non-executable by the same memory protections.

References