Cyber Resilience

CVE-2021-45672

Medium

Published: 26 December 2021

Published
26 December 2021
Modified
21 November 2024
KEV Added
Patch
CVSS Score v3.1 4.2 CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
EPSS Score 0.0026 49.3th percentile
Risk Priority 9 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-45672 is a medium-severity Cross-site Scripting (CWE-79) vulnerability in Netgear D6200 Firmware. Its CVSS base score is 4.2 (Medium).

Operationally, ranked at the 49.3th 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 Stored XSS. This affects D6200 before 1.1.00.40, D7000 before 1.0.1.78, R6020 before 1.0.0.48, R6080 before 1.0.0.48, R6120 before 1.0.0.76, R6220 before 1.1.0.110, R6230 before 1.1.0.110, R6260 before 1.1.0.78, R6800 before 1.2.0.76, R6900v2 before 1.2.0.76,…

more

R6700v2 before 1.2.0.76, R6850 before 1.1.0.78, R7200 before 1.2.0.76, R7350 before 1.2.0.76, R7400 before 1.2.0.76, R7450 before 1.2.0.76, AC2100 before 1.2.0.76, AC2400 before 1.2.0.76, AC2600 before 1.2.0.76, and RAX40 before 1.0.3.62.

CWE(s)

Related Threats

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

Affected Assets

netgear
d6200 firmware
≤ 1.1.00.40
netgear
d7000 firmware
≤ 1.0.1.78
netgear
r6020 firmware
≤ 1.0.0.48
netgear
r6080 firmware
≤ 1.0.0.48
netgear
r6120 firmware
≤ 1.0.0.76
netgear
r6220 firmware
≤ 1.1.0.110
netgear
r6230 firmware
≤ 1.1.0.110
netgear
r6260 firmware
≤ 1.1.0.78
netgear
r6800 firmware
≤ 1.2.0.76
netgear
r6900v2 firmware
≤ 1.2.0.76
+10 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-79

Penetration testing submits XSS payloads to web applications, detecting cross-site scripting flaws for subsequent remediation.

addresses: CWE-79

Validates web inputs to reject script-related content that could produce XSS.

addresses: CWE-79

Output validation against expected content can reject or sanitize script content in generated web pages, reducing XSS exploitability.

References