CVE-2021-38514 [Low] | Authentication Bypass in D3600 Firmware

Certain NETGEAR devices are affected by authentication bypass. This affects D3600 before 1.0.0.72, D6000 before 1.0.0.72, D6100 before 1.0.0.63, D6200 before 1.1.00.34, D6220 before 1.0.0.48, D6400 before 1.0.0.86, D7000 before 1.0.1.70, D7000v2 before 1.0.0.52, D7800 before 1.0.1.56, D8500 before 1.0.3.44, DC112A before 1.0.0.42, DGN2200v4 before 1.0.0.108, DGND2200Bv4 before 1.0.0.108, EX2700 before 1.0.1.48, EX3700 before 1.0.0.76, EX3800 before 1.0.0.76, EX6000 before 1.0.0.38, EX6100 before 1.0.2.24, EX6100v2 before 1.0.1.76, EX6120 before 1.0.0.42, EX6130 before 1.0.0.28, EX6150v1 before 1.0.0.42, EX6150v2 before 1.0.1.76, EX6200 before 1.0.3.88, EX6200v2 before 1.0.1.72, EX6400 before 1.0.2.136, EX7000 before 1.0.0.66, EX7300 before 1.0.2.136, EX8000 before 1.0.1.180, RBK50 before 2.1.4.10, RBR50 before 2.1.4.10, RBS50 before 2.1.4.10, RBK40 before 2.1.4.10, RBR40 before 2.1.4.10, RBS40 before 2.1.4.10, RBW30 before 2.2.1.204, PR2000 before 1.0.0.28, R6020 before 1.0.0.38, R6080 before 1.0.0.38, R6050 before 1.0.1.18, JR6150 before 1.0.1.18, R6120 before 1.0.0.46, R6220 before 1.1.0.86, R6250 before 1.0.4.34, R6300v2 before 1.0.4.32, R6400 before 1.0.1.44, R6400v2 before 1.0.2.62, R6700 before 1.0.1.48, R6700v2 before 1.2.0.36, R6800 before 1.2.0.36, R6900v2 before 1.2.0.36, R6900 before 1.0.1.48, R7000 before 1.0.9.34, R6900P before 1.3.1.64, R7000P before 1.3.1.64, R7100LG before 1.0.0.48, R7300DST before 1.0.0.70, R7500v2 before 1.0.3.38, R7800 before 1.0.2.52, R7900 before 1.0.3.8, R8000 before 1.0.4.28, R7900P before 1.4.1.30, R8000P before 1.4.1.30, R8300 before 1.0.2.128, R8500 before 1.0.2.128, R9000 before 1.0.3.10, RBS40V before 2.2.0.58, RBK50V before 2.2.0.58, WN2000RPTv3 before 1.0.1.32, WN2500RPv2 before 1.0.1.54, WN3000RPv3 before 1.0.2.78, WN3100RPv2 before 1.0.0.66, WNDR3400v3 before 1.0.1.22, WNDR3700v4 before 1.0.2.102, WNDR4300v1 before 1.0.2.104, WNDR4300v2 before 1.0.0.56, WNDR4500v3 before 1.0.0.56, WNR2000v5 (R2000) before 1.0.0.66, WNR2020 before 1.1.0.62, WNR2050 before 1.1.0.62, WNR3500Lv2 before 1.2.0.62, and XR500 before 2.3.2.22.

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-06-15	0.25%	0.70%	+0.45%
2	2025-11-21	0.27%	0.25%	-0.03%
3	2025-11-18	—	0.27%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-06-15

0.25%

0.70%

+0.45%

2025-11-21

0.27%

0.25%

-0.03%

2025-11-18

—

0.27%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
2.4	3.1	LOW	`CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:L/I:N/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:H) They need powerful rights—admin, root, or similar—before this pays off. User interaction (UI:N) Nobody has to click “OK” or open a trap file; it can work without a victim helping. Scope (S:U) Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems. Confidentiality (C:L) Some sensitive info could get out, but not a total data dump. Integrity (I:N) Data isn’t meaningfully altered or forged. Availability (A:N) Service keeps running; no real outage angle.	0.9	1.4	[email protected]
2.7	3.1	LOW	`CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/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:H) They need powerful rights—admin, root, or similar—before this pays off. User interaction (UI:N) Nobody has to click “OK” or open a trap file; it can work without a victim helping. Scope (S:U) Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems. Confidentiality (C:L) Some sensitive info could get out, but not a total data dump. Integrity (I:N) Data isn’t meaningfully altered or forged. Availability (A:N) Service keeps running; no real outage angle.	1.2	1.4	[email protected]
4.0	2.0	MEDIUM	`AV:N/AC:L/Au:S/C:P/I:N/A:N` Click to expand Access vector (AV:N) Can be exploited remotely over network reachability. Access complexity (AC:L) Exploitation conditions are straightforward and predictable. Authentication (AU:S) A single authentication is required. Confidentiality impact (C:P) Partial confidentiality impact. Integrity impact (I:N) No integrity impact. Availability impact (A:N) No availability impact.	8.0	2.9	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

2.4

3.1

LOW

CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:L/I:N/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:H): They need powerful rights—admin, root, or similar—before this pays off.
User interaction (UI:N): Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U): Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L): Some sensitive info could get out, but not a total data dump.
Integrity (I:N): Data isn’t meaningfully altered or forged.
Availability (A:N): Service keeps running; no real outage angle.

0.9

1.4

[email protected]

2.7

3.1

LOW

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/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:H): They need powerful rights—admin, root, or similar—before this pays off.
User interaction (UI:N): Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U): Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L): Some sensitive info could get out, but not a total data dump.
Integrity (I:N): Data isn’t meaningfully altered or forged.
Availability (A:N): Service keeps running; no real outage angle.

1.2

1.4

[email protected]

4.0

2.0

MEDIUM

AV:N/AC:L/Au:S/C:P/I:N/A:N Click to expand

Access vector (AV:N): Can be exploited remotely over network reachability.
Access complexity (AC:L): Exploitation conditions are straightforward and predictable.
Authentication (AU:S): A single authentication is required.
Confidentiality impact (C:P): Partial confidentiality impact.
Integrity impact (I:N): No integrity impact.
Availability impact (A:N): No availability impact.

8.0

2.9

[email protected]

Affected software / configurations for CVE-2021-38514

Vendor	Product	Version	Raw CPE
netgear	d3600_firmware	< 1.0.0.72	cpe:2.3:o:netgear:d3600_firmware::::::::
netgear	d6000_firmware	< 1.0.0.72	cpe:2.3:o:netgear:d6000_firmware::::::::
netgear	d6100_firmware	< 1.0.0.63	cpe:2.3:o:netgear:d6100_firmware::::::::
netgear	d6200_firmware	< 1.1.00.34	cpe:2.3:o:netgear:d6200_firmware::::::::
netgear	d6220_firmware	< 1.0.0.48	cpe:2.3:o:netgear:d6220_firmware::::::::
netgear	d6400_firmware	< 1.0.0.86	cpe:2.3:o:netgear:d6400_firmware::::::::
netgear	d7000_firmware	< 1.0.1.70	cpe:2.3:o:netgear:d7000_firmware::::::::
netgear	d7000_firmware	< 1.0.0.52	cpe:2.3:o:netgear:d7000_firmware::::::::
netgear	d7800_firmware	< 1.0.1.56	cpe:2.3:o:netgear:d7800_firmware::::::::
netgear	d8500_firmware	< 1.0.3.44	cpe:2.3:o:netgear:d8500_firmware::::::::
netgear	dc112a_firmware	< 1.0.0.42	cpe:2.3:o:netgear:dc112a_firmware::::::::
netgear	dgn2200_firmware	< 1.0.0.108	cpe:2.3:o:netgear:dgn2200_firmware::::::::
netgear	dgnd2200b_firmware	< 1.0.0.108	cpe:2.3:o:netgear:dgnd2200b_firmware::::::::
netgear	ex2700_firmware	< 1.0.1.48	cpe:2.3:o:netgear:ex2700_firmware::::::::
netgear	ex3700_firmware	< 1.0.0.76	cpe:2.3:o:netgear:ex3700_firmware::::::::
netgear	ex3800_firmware	< 1.0.0.76	cpe:2.3:o:netgear:ex3800_firmware::::::::
netgear	ex6000_firmware	< 1.0.0.38	cpe:2.3:o:netgear:ex6000_firmware::::::::
netgear	ex6100_firmware	< 1.0.2.24	cpe:2.3:o:netgear:ex6100_firmware::::::::
netgear	ex6100_firmware	< 1.0.1.76	cpe:2.3:o:netgear:ex6100_firmware::::::::
netgear	ex6120_firmware	< 1.0.0.42	cpe:2.3:o:netgear:ex6120_firmware::::::::
netgear	ex6130_firmware	< 1.0.0.28	cpe:2.3:o:netgear:ex6130_firmware::::::::
netgear	ex6150_firmware	< 1.0.0.42	cpe:2.3:o:netgear:ex6150_firmware::::::::
netgear	ex6150_firmware	< 1.0.1.76	cpe:2.3:o:netgear:ex6150_firmware::::::::
netgear	ex6200_firmware	< 1.0.3.88	cpe:2.3:o:netgear:ex6200_firmware::::::::
netgear	ex6200_firmware	< 1.0.1.72	cpe:2.3:o:netgear:ex6200_firmware::::::::
netgear	ex6400_firmware	< 1.0.2.136	cpe:2.3:o:netgear:ex6400_firmware::::::::
netgear	ex7000_firmware	< 1.0.0.66	cpe:2.3:o:netgear:ex7000_firmware::::::::
netgear	ex7300_firmware	< 1.0.2.136	cpe:2.3:o:netgear:ex7300_firmware::::::::
netgear	ex8000_firmware	< 1.0.1.180	cpe:2.3:o:netgear:ex8000_firmware::::::::
netgear	rbk50_firmware	< 2.1.4.10	cpe:2.3:o:netgear:rbk50_firmware::::::::
netgear	rbr50_firmware	< 2.1.4.10	cpe:2.3:o:netgear:rbr50_firmware::::::::
netgear	rbs50_firmware	< 2.1.4.10	cpe:2.3:o:netgear:rbs50_firmware::::::::
netgear	rbk40_firmware	< 2.1.4.10	cpe:2.3:o:netgear:rbk40_firmware::::::::
netgear	rbr40_firmware	< 2.1.4.10	cpe:2.3:o:netgear:rbr40_firmware::::::::
netgear	rbs40_firmware	< 2.1.4.10	cpe:2.3:o:netgear:rbs40_firmware::::::::
netgear	rbw30_firmware	< 2.2.1.204	cpe:2.3:o:netgear:rbw30_firmware::::::::
netgear	pr2000_firmware	< 1.0.0.28	cpe:2.3:o:netgear:pr2000_firmware::::::::
netgear	r6020_firmware	< 1.0.0.38	cpe:2.3:o:netgear:r6020_firmware::::::::
netgear	r6080_firmware	< 1.0.0.38	cpe:2.3:o:netgear:r6080_firmware::::::::
netgear	r6050_firmware	< 1.0.1.18	cpe:2.3:o:netgear:r6050_firmware::::::::
netgear	jr6150_firmware	< 1.0.1.18	cpe:2.3:o:netgear:jr6150_firmware::::::::
netgear	r6120_firmware	< 1.0.0.46	cpe:2.3:o:netgear:r6120_firmware::::::::
netgear	r6220_firmware	< 1.1.0.86	cpe:2.3:o:netgear:r6220_firmware::::::::
netgear	r6250_firmware	< 1.0.4.34	cpe:2.3:o:netgear:r6250_firmware::::::::
netgear	r6300_firmware	< 1.0.4.32	cpe:2.3:o:netgear:r6300_firmware::::::::
netgear	r6400_firmware	< 1.0.1.44	cpe:2.3:o:netgear:r6400_firmware::::::::
netgear	r6400_firmware	< 1.0.2.62	cpe:2.3:o:netgear:r6400_firmware::::::::
netgear	r6700_firmware	< 1.0.1.48	cpe:2.3:o:netgear:r6700_firmware::::::::
netgear	r6700_firmware	< 1.2.0.36	cpe:2.3:o:netgear:r6700_firmware::::::::
netgear	r6800_firmware	< 1.2.0.36	cpe:2.3:o:netgear:r6800_firmware::::::::
netgear	r6900_firmware	< 1.2.0.36	cpe:2.3:o:netgear:r6900_firmware::::::::
netgear	r6900_firmware	< 1.0.1.48	cpe:2.3:o:netgear:r6900_firmware::::::::
netgear	r7000_firmware	< 1.0.9.34	cpe:2.3:o:netgear:r7000_firmware::::::::
netgear	r6900p_firmware	< 1.3.1.64	cpe:2.3:o:netgear:r6900p_firmware::::::::
netgear	r7000p_firmware	< 1.3.1.64	cpe:2.3:o:netgear:r7000p_firmware::::::::
netgear	r7100lg_firmware	< 1.0.0.48	cpe:2.3:o:netgear:r7100lg_firmware::::::::
netgear	r7300dst_firmware	< 1.0.0.70	cpe:2.3:o:netgear:r7300dst_firmware::::::::
netgear	r7500_firmware	< 1.0.3.38	cpe:2.3:o:netgear:r7500_firmware::::::::
netgear	r7800_firmware	< 1.0.2.52	cpe:2.3:o:netgear:r7800_firmware::::::::
netgear	r7900_firmware	< 1.0.3.8	cpe:2.3:o:netgear:r7900_firmware::::::::
netgear	r8000_firmware	< 1.0.4.28	cpe:2.3:o:netgear:r8000_firmware::::::::
netgear	r7900p_firmware	< 1.4.1.30	cpe:2.3:o:netgear:r7900p_firmware::::::::
netgear	r8000p_firmware	< 1.4.1.30	cpe:2.3:o:netgear:r8000p_firmware::::::::
netgear	r8300_firmware	< 1.0.2.128	cpe:2.3:o:netgear:r8300_firmware::::::::
netgear	r8500_firmware	< 1.0.2.128	cpe:2.3:o:netgear:r8500_firmware::::::::
netgear	r9000_firmware	< 1.0.3.10	cpe:2.3:o:netgear:r9000_firmware::::::::
netgear	rbs40v_firmware	< 2.2.0.58	cpe:2.3:o:netgear:rbs40v_firmware::::::::
netgear	rbk50v_firmware	< 2.2.0.58	cpe:2.3:o:netgear:rbk50v_firmware::::::::
netgear	wn2000rpt_firmware	< 1.0.1.32	cpe:2.3:o:netgear:wn2000rpt_firmware::::::::
netgear	wn2500rp_firmware	< 1.0.1.54	cpe:2.3:o:netgear:wn2500rp_firmware::::::::
netgear	wn3000rp_firmware	< 1.0.2.78	cpe:2.3:o:netgear:wn3000rp_firmware::::::::
netgear	wn3100rp_firmware	< 1.0.0.66	cpe:2.3:o:netgear:wn3100rp_firmware::::::::
netgear	wndr3400_firmware	< 1.0.1.22	cpe:2.3:o:netgear:wndr3400_firmware::::::::
netgear	wndr3700_firmware	< 1.0.2.102	cpe:2.3:o:netgear:wndr3700_firmware::::::::
netgear	wndr4300_firmware	< 1.0.2.104	cpe:2.3:o:netgear:wndr4300_firmware::::::::
netgear	wndr4300_firmware	< 1.0.0.56	cpe:2.3:o:netgear:wndr4300_firmware::::::::
netgear	wndr4500_firmware	< 1.0.0.56	cpe:2.3:o:netgear:wndr4500_firmware::::::::
netgear	wnr2000_firmware	< 1.0.0.66	cpe:2.3:o:netgear:wnr2000_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-2021-38514

URL	Tags
https://kb.netgear.com/000063757/Security-Advisory-for-Authentication-Bypass-on-Some-Routers-Extenders-and-WiFi-Systems-PSV-2017-2449	Vendor Advisory

URL

CVE-2021-38514

Exploit prediction scoring system (EPSS) score for CVE-2021-38514

Common vulnerability scoring system (CVSS) metrics for CVE-2021-38514

Weakness enumeration for CVE-2021-38514

Affected software / configurations for CVE-2021-38514

References for CVE-2021-38514