CVE-2021-45673

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.

Published: 2021-12-25 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2021-45673 is rated Low Risk (32.6/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.48%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2021-45673

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.20% 0.48% +0.28%
2 2025-03-17 0.05% 0.20% +0.14%
3 2023-03-07 — 0.05% —

Full EPSS history (5 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2021-45673

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.8 3.1 MEDIUM
CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N Click to expand
Attack vector (AV:A)
Attacker has to be nearby on the network—same office, same link, that vibe—not the whole wide internet.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
 1.7 2.7 [email protected]
5.4 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
 2.3 2.7 [email protected]
3.5 2.0 LOW
AV:N/AC:M/Au:S/C:N/I:P/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:S)
A single authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 6.8 2.9 [email protected]

Weakness enumeration for CVE-2021-45673

Affected software / configurations for CVE-2021-45673

Vendor Product Version Raw CPE
netgear r7000_firmware < 1.0.11.110 cpe:2.3:o:netgear:r7000_firmware:*:*:*:*:*:*:*:*
netgear r7900_firmware < 1.0.4.30 cpe:2.3:o:netgear:r7900_firmware:*:*:*:*:*:*:*:*
netgear r8000_firmware < 1.0.4.62 cpe:2.3:o:netgear:r8000_firmware:*:*:*:*:*:*:*:*
netgear rax200_firmware < 1.0.3.106 cpe:2.3:o:netgear:rax200_firmware:*:*:*:*:*:*:*:*
netgear r7000p_firmware < 1.3.3.140 cpe:2.3:o:netgear:r7000p_firmware:*:*:*:*:*:*:*:*
netgear rax80_firmware < 1.0.3.106 cpe:2.3:o:netgear:rax80_firmware:*:*:*:*:*:*:*:*
netgear r6900p_firmware < 1.3.3.140 cpe:2.3:o:netgear:r6900p_firmware:*:*:*:*:*:*:*:*
netgear rax75_firmware < 1.0.3.106 cpe:2.3:o:netgear:rax75_firmware:*:*:*:*:*:*:*:*

References for CVE-2021-45673

cvelogic Threat Intelligence