Cyber Resilience

CVE-2021-45637

High

Published: 26 December 2021

Published
26 December 2021
Modified
21 November 2024
KEV Added
Patch
CVSS Score v3.1 8.3 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
EPSS Score 0.0065 71.4th percentile
Risk Priority 17 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-45637 is a high-severity Out-of-bounds Write (CWE-787) vulnerability in Netgear R6260 Firmware. Its CVSS base score is 8.3 (High).

Operationally, ranked in the top 28.6% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

Certain NETGEAR devices are affected by a stack-based buffer overflow by an unauthenticated attacker. This affects R6260 before 1.1.0.76, R6800 before 1.2.0.62, R6700v2 before 1.2.0.62, R6900v2 before 1.2.0.62, R7450 before 1.2.0.62, AC2100 before 1.2.0.62, AC2400 before 1.2.0.62, and AC2600 before…

more

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
r6260 firmware
≤ 1.1.0.76
netgear
r6800 firmware
≤ 1.2.0.62
netgear
r6700v2 firmware
≤ 1.2.0.62
netgear
r6900v2 firmware
≤ 1.2.0.62
netgear
r7450 firmware
≤ 1.2.0.62
netgear
ac2100 firmware
≤ 1.2.0.62
netgear
ac2400 firmware
≤ 1.2.0.62
netgear
ac2600 firmware
≤ 1.2.0.62

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