CVE-2020-35841 [Medium] | XSS in D6200 Firmware

Certain NETGEAR devices are affected by stored XSS. This affects D6200 before 1.1.00.38, D7000 before 1.0.1.78, JNR1010v2 before 1.1.0.62, JR6150 before 1.0.1.24, JWNR2010v5 before 1.1.0.62, R6020 before 1.0.0.42, R6050 before 1.0.1.24, R6080 before 1.0.0.42, R6120 before 1.0.0.66, R6220 before 1.1.0.100, R6260 before 1.1.0.76, R6700v2 before 1.2.0.62, R6800 before 1.2.0.62, R6900v2 before 1.2.0.62, R7450 before 1.2.0.62, WNR1000v4 before 1.1.0.62, WNR2020 before 1.1.0.62, and WNR2050 before 1.1.0.62.

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-06-15	0.34%	0.62%	+0.28%
2	2025-03-30	0.40%	0.34%	-0.05%
3	2025-03-29	—	0.40%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-06-15

0.34%

0.62%

+0.28%

2025-03-30

0.40%

0.34%

-0.05%

2025-03-29

—

0.40%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
6.9	3.1	MEDIUM	`CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:C/C:L/I:H/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:H) They could widely tamper with or forge data—trust in the data is badly hurt. Availability (A:N) Service keeps running; no real outage angle.	1.7	4.7	[email protected]
7.6	3.1	HIGH	`CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:H/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:H) They could widely tamper with or forge data—trust in the data is badly hurt. Availability (A:N) Service keeps running; no real outage angle.	2.3	4.7	[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]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

6.9

3.1

MEDIUM

CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:C/C:L/I:H/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:H): They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N): Service keeps running; no real outage angle.

1.7

4.7

[email protected]

7.6

3.1

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:H/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:H): They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N): Service keeps running; no real outage angle.

2.3

4.7

[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]

Affected software / configurations for CVE-2020-35841

Vendor	Product	Version	Raw CPE
netgear	d6200_firmware	< 1.1.00.38	cpe:2.3:o:netgear:d6200_firmware::::::::
netgear	d7000_firmware	< 1.0.1.78	cpe:2.3:o:netgear:d7000_firmware::::::::
netgear	jnr1010v2_firmware	< 1.1.0.62	cpe:2.3:o:netgear:jnr1010v2_firmware::::::::
netgear	jr6150_firmware	< 1.0.1.24	cpe:2.3:o:netgear:jr6150_firmware::::::::
netgear	jwnr2010v5_firmware	< 1.1.0.62	cpe:2.3:o:netgear:jwnr2010v5_firmware::::::::
netgear	r6020_firmware	< 1.0.0.42	cpe:2.3:o:netgear:r6020_firmware::::::::
netgear	r6050_firmware	< 1.0.1.24	cpe:2.3:o:netgear:r6050_firmware::::::::
netgear	r6080_firmware	< 1.0.0.42	cpe:2.3:o:netgear:r6080_firmware::::::::
netgear	r6120_firmware	< 1.0.0.66	cpe:2.3:o:netgear:r6120_firmware::::::::
netgear	r6220_firmware	< 1.1.0.100	cpe:2.3:o:netgear:r6220_firmware::::::::
netgear	r6260_firmware	< 1.1.0.76	cpe:2.3:o:netgear:r6260_firmware::::::::
netgear	r6700v2_firmware	< 1.2.0.62	cpe:2.3:o:netgear:r6700v2_firmware::::::::
netgear	r6800_firmware	< 1.2.0.62	cpe:2.3:o:netgear:r6800_firmware::::::::
netgear	r6900v2_firmware	< 1.2.0.62	cpe:2.3:o:netgear:r6900v2_firmware::::::::
netgear	r7450_firmware	< 1.2.0.62	cpe:2.3:o:netgear:r7450_firmware::::::::
netgear	wnr1000v4_firmware	< 1.1.0.62	cpe:2.3:o:netgear:wnr1000v4_firmware::::::::
netgear	wnr2020_firmware	< 1.1.0.62	cpe:2.3:o:netgear:wnr2020_firmware::::::::
netgear	wnr2050_firmware	< 1.1.0.62	cpe:2.3:o:netgear:wnr2050_firmware::::::::

References for CVE-2020-35841

URL	Tags
https://kb.netgear.com/000062712/Security-Advisory-for-Stored-Cross-Site-Scripting-on-Some-Routers-PSV-2019-0013	Vendor Advisory

URL

CVE-2020-35841

Exploit prediction scoring system (EPSS) score for CVE-2020-35841

Common vulnerability scoring system (CVSS) metrics for CVE-2020-35841

Weakness enumeration for CVE-2020-35841

Affected software / configurations for CVE-2020-35841

References for CVE-2020-35841