Cyber Resilience

CVE-2021-45673

Medium

Published: 26 December 2021

Published
26 December 2021
Modified
21 November 2024
KEV Added
—
Patch
—
CVSS Score v3.1 4.8 CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
EPSS Score 0.0020 41.7th percentile
Risk Priority 10 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-45673 is a medium-severity Cross-site Scripting (CWE-79) vulnerability in Netgear R7000 Firmware. Its CVSS base score is 4.8 (Medium).

Operationally, ranked at the 41.7th 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 R7000 before 1.0.11.110, R7900 before 1.0.4.30, R8000 before 1.0.4.62, RAX200 before 1.0.3.106, R7000P before 1.3.3.140, RAX80 before 1.0.3.106, R6900P before 1.3.3.140, and RAX75 before 1.0.3.106.

CWE(s)
CWE-79

Related Threats

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

Affected Assets

netgear
r7000 firmware
≤ 1.0.11.110
netgear
r7900 firmware
≤ 1.0.4.30
netgear
r8000 firmware
≤ 1.0.4.62
netgear
rax200 firmware
≤ 1.0.3.106
netgear
r7000p firmware
≤ 1.3.3.140
netgear
rax80 firmware
≤ 1.0.3.106
netgear
r6900p firmware
≤ 1.3.3.140
netgear
rax75 firmware
≤ 1.0.3.106

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.

CA-8 Penetration Testing
addresses: CWE-79

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

SI-10 Information Input Validation
addresses: CWE-79

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

SI-15 Information Output Filtering
addresses: CWE-79

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

References