CVE-2021-45639
Published: 26 December 2021
Summary
CVE-2021-45639 is a medium-severity Cross-site Scripting (CWE-79) vulnerability in Netgear Cbr40 Firmware. Its CVSS base score is 5.2 (Medium).
Operationally, ranked at the 48.7th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2021-32405
Vulnerability details
Certain NETGEAR devices are affected by reflected XSS. This affects CBR40 before 2.5.0.10, EAX20 before 1.0.0.32, EAX80 before 1.0.1.62, EX6120 before 1.0.0.64, EX6130 before 1.0.0.44, EX7000 before 1.0.1.104, EX7500 before 1.0.0.72, R7000 before 1.0.11.110, R7900 before 1.0.4.30, R7960P before 1.4.1.66,…
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R8000 before 1.0.4.62, RAX200 before 1.0.2.102, XR300 before 1.0.3.50, EX3700 before 1.0.0.90, MR60 before 1.0.5.102, R7000P before 1.3.2.126, R8000P before 1.4.1.66, RAX20 before 1.0.1.64, RAX50 before 1.0.2.28, RAX80 before 1.0.3.102, EX3800 before 1.0.0.90, MS60 before 1.0.5.102, R6900P before 1.3.2.126, R7900P before 1.4.1.66, RAX15 before 1.0.1.64, RAX45 before 1.0.2.28, RAX75 before 1.0.3.102, RBR750 before 3.2.16.6, RBR850 before 3.2.16.6, RBS750 before 3.2.16.6, RBS850 before 3.2.16.6, RBK752 before 3.2.16.6, and RBK852 before 3.2.16.6.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
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.
Penetration testing submits XSS payloads to web applications, detecting cross-site scripting flaws for subsequent remediation.
Validates web inputs to reject script-related content that could produce XSS.
Output validation against expected content can reject or sanitize script content in generated web pages, reducing XSS exploitability.