CVE-2021-38516

Certain NETGEAR devices are affected by lack of access control at the function level. This affects D6220 before 1.0.0.48, D6400 before 1.0.0.82, D7000v2 before 1.0.0.52, D7800 before 1.0.1.44, D8500 before 1.0.3.43, DC112A before 1.0.0.40, DGN2200v4 before 1.0.0.108, RBK50 before 2.3.0.32, RBR50 before 2.3.0.32, RBS50 before 2.3.0.32, RBK20 before 2.3.0.28, RBR20 before 2.3.0.28, RBS20 before 2.3.0.28, RBK40 before 2.3.0.28, RBR40 before 2.3.0.28, RBS40 before 2.3.0.28, R6020 before 1.0.0.34, R6080 before 1.0.0.34, R6120 before 1.0.0.44, R6220 before 1.1.0.80, R6230 before 1.1.0.80, R6250 before 1.0.4.34, R6260 before 1.1.0.40, R6850 before 1.1.0.40, R6350 before 1.1.0.40, R6400v2 before 1.0.2.62, R6700v3 before 1.0.2.62, R6700v2 before 1.2.0.36, R6800 before 1.2.0.36, R6900v2 before 1.2.0.36, R7000 before 1.0.9.34, R6900P before 1.3.1.44, R7000P before 1.3.1.44, R7100LG before 1.0.0.48, R7200 before 1.2.0.48, R7350 before 1.2.0.48, R7400 before 1.2.0.48, R7450 before 1.2.0.36, AC2100 before 1.2.0.36, AC2400 before 1.2.0.36, AC2600 before 1.2.0.36, R7500v2 before 1.0.3.38, R7800 before 1.0.2.58, R7900 before 1.0.3.8, R7960P before 1.4.1.44, R8000 before 1.0.4.28, R7900P before 1.4.1.30, R8000P before 1.4.1.30, R8900 before 1.0.4.2, R9000 before 1.0.4.2, RAX120 before 1.0.0.74, RBK752 before 3.2.16.6, RBR750 before 3.2.16.6, RBS750 before 3.2.16.6, RBK852 before 3.2.16.6, RBR850 before 3.2.16.6, RBS850 before 3.2.16.6, WNR3500Lv2 before 1.2.0.56, XR450 before 2.3.2.32, and XR500 before 2.3.2.32.

Published: 2021-08-11 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2021-38516 is rated Moderate Risk (64.4/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 1.34%). Review affected assets and schedule remediation.

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-2021-38516

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 0.55% 1.34% +0.79%
2 2026-04-08 0.44% 0.55% +0.11%
3 2025-03-30 — 0.44% —

Full EPSS history (13 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2021-38516

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
10.0 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H 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:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 6.0 [email protected]
9.8 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H 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:N)
No account or special rights needed—anonymous or random user is enough.
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:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 [email protected]
10.0 2.0 HIGH
AV:N/AC:L/Au:N/C:C/I:C/A:C 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:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 10.0 10.0 [email protected]

Weakness enumeration for CVE-2021-38516

Affected software / configurations for CVE-2021-38516

Vendor Product Version Raw CPE
netgear d6220_firmware < 1.0.0.48 cpe:2.3:o:netgear:d6220_firmware:*:*:*:*:*:*:*:*
netgear d6400_firmware < 1.0.0.82 cpe:2.3:o:netgear:d6400_firmware:*:*:*:*:*:*:*:*
netgear d7000_firmware < 1.0.0.52 cpe:2.3:o:netgear:d7000_firmware:*:*:*:*:*:*:*:*
netgear d7800_firmware < 1.0.1.44 cpe:2.3:o:netgear:d7800_firmware:*:*:*:*:*:*:*:*
netgear d8500_firmware < 1.0.3.43 cpe:2.3:o:netgear:d8500_firmware:*:*:*:*:*:*:*:*
netgear dc112a_firmware < 1.0.0.40 cpe:2.3:o:netgear:dc112a_firmware:*:*:*:*:*:*:*:*
netgear dgn2200_firmware < 1.0.0.108 cpe:2.3:o:netgear:dgn2200_firmware:*:*:*:*:*:*:*:*
netgear rbk50_firmware < 2.3.0.32 cpe:2.3:o:netgear:rbk50_firmware:*:*:*:*:*:*:*:*
netgear rbr50_firmware < 2.3.0.32 cpe:2.3:o:netgear:rbr50_firmware:*:*:*:*:*:*:*:*
netgear rbs50_firmware < 2.3.0.32 cpe:2.3:o:netgear:rbs50_firmware:*:*:*:*:*:*:*:*
netgear rbk20_firmware < 2.3.0.28 cpe:2.3:o:netgear:rbk20_firmware:*:*:*:*:*:*:*:*
netgear rbr20_firmware < 2.3.0.28 cpe:2.3:o:netgear:rbr20_firmware:*:*:*:*:*:*:*:*
netgear rbs20_firmware < 2.3.0.28 cpe:2.3:o:netgear:rbs20_firmware:*:*:*:*:*:*:*:*
netgear rbk40_firmware < 2.3.0.28 cpe:2.3:o:netgear:rbk40_firmware:*:*:*:*:*:*:*:*
netgear rbr40_firmware < 2.3.0.28 cpe:2.3:o:netgear:rbr40_firmware:*:*:*:*:*:*:*:*
netgear rbs40_firmware < 2.3.0.28 cpe:2.3:o:netgear:rbs40_firmware:*:*:*:*:*:*:*:*
netgear r6020_firmware < 1.0.0.34 cpe:2.3:o:netgear:r6020_firmware:*:*:*:*:*:*:*:*
netgear r6080_firmware < 1.0.0.34 cpe:2.3:o:netgear:r6080_firmware:*:*:*:*:*:*:*:*
netgear r6120_firmware < 1.0.0.44 cpe:2.3:o:netgear:r6120_firmware:*:*:*:*:*:*:*:*
netgear r6220_firmware < 1.1.0.80 cpe:2.3:o:netgear:r6220_firmware:*:*:*:*:*:*:*:*
netgear r6230_firmware < 1.1.0.80 cpe:2.3:o:netgear:r6230_firmware:*:*:*:*:*:*:*:*
netgear r6250_firmware < 1.0.4.34 cpe:2.3:o:netgear:r6250_firmware:*:*:*:*:*:*:*:*
netgear r6260_firmware < 1.1.0.40 cpe:2.3:o:netgear:r6260_firmware:*:*:*:*:*:*:*:*
netgear r6850_firmware < 1.1.0.40 cpe:2.3:o:netgear:r6850_firmware:*:*:*:*:*:*:*:*
netgear r6350_firmware < 1.1.0.40 cpe:2.3:o:netgear:r6350_firmware:*:*:*:*:*:*:*:*
netgear r6400_firmware < 1.0.2.62 cpe:2.3:o:netgear:r6400_firmware:*:*:*:*:*:*:*:*
netgear r6700_firmware < 1.0.2.62 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 r7000_firmware < 1.0.9.34 cpe:2.3:o:netgear:r7000_firmware:*:*:*:*:*:*:*:*
netgear r6900p_firmware < 1.3.1.44 cpe:2.3:o:netgear:r6900p_firmware:*:*:*:*:*:*:*:*
netgear r7000p_firmware < 1.3.1.44 cpe:2.3:o:netgear:r7000p_firmware:*:*:*:*:*:*:*:*
netgear r7100lg_firmware < 1.0.0.48 cpe:2.3:o:netgear:r7100lg_firmware:*:*:*:*:*:*:*:*
netgear r7200_firmware < 1.2.0.48 cpe:2.3:o:netgear:r7200_firmware:*:*:*:*:*:*:*:*
netgear r7350_firmware < 1.2.0.48 cpe:2.3:o:netgear:r7350_firmware:*:*:*:*:*:*:*:*
netgear r7400_firmware < 1.2.0.48 cpe:2.3:o:netgear:r7400_firmware:*:*:*:*:*:*:*:*
netgear r7450_firmware < 1.2.0.36 cpe:2.3:o:netgear:r7450_firmware:*:*:*:*:*:*:*:*
netgear ac2100_firmware < 1.2.0.36 cpe:2.3:o:netgear:ac2100_firmware:*:*:*:*:*:*:*:*
netgear ac2400_firmware < 1.2.0.36 cpe:2.3:o:netgear:ac2400_firmware:*:*:*:*:*:*:*:*
netgear ac2600_firmware < 1.2.0.36 cpe:2.3:o:netgear:ac2600_firmware:*:*:*:*:*:*:*:*
netgear r7500_firmware < 1.0.3.38 cpe:2.3:o:netgear:r7500_firmware:*:*:*:*:*:*:*:*
netgear r7800_firmware < 1.0.2.58 cpe:2.3:o:netgear:r7800_firmware:*:*:*:*:*:*:*:*
netgear r7900_firmware < 1.0.3.8 cpe:2.3:o:netgear:r7900_firmware:*:*:*:*:*:*:*:*
netgear r7960p_firmware < 1.4.1.44 cpe:2.3:o:netgear:r7960p_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 r8900_firmware < 1.0.4.2 cpe:2.3:o:netgear:r8900_firmware:*:*:*:*:*:*:*:*
netgear r9000_firmware < 1.0.4.2 cpe:2.3:o:netgear:r9000_firmware:*:*:*:*:*:*:*:*
netgear rax120_firmware < 1.0.0.74 cpe:2.3:o:netgear:rax120_firmware:*:*:*:*:*:*:*:*
netgear rbk752_firmware < 3.2.16.6 cpe:2.3:o:netgear:rbk752_firmware:*:*:*:*:*:*:*:*
netgear rbr750_firmware < 3.2.16.6 cpe:2.3:o:netgear:rbr750_firmware:*:*:*:*:*:*:*:*
netgear rbs750_firmware < 3.2.16.6 cpe:2.3:o:netgear:rbs750_firmware:*:*:*:*:*:*:*:*
netgear rbk852_firmware < 3.2.16.6 cpe:2.3:o:netgear:rbk852_firmware:*:*:*:*:*:*:*:*
netgear rbr850_firmware < 3.2.16.6 cpe:2.3:o:netgear:rbr850_firmware:*:*:*:*:*:*:*:*
netgear rbs850_firmware < 3.2.16.6 cpe:2.3:o:netgear:rbs850_firmware:*:*:*:*:*:*:*:*
netgear wnr3500l_firmware < 1.2.0.56 cpe:2.3:o:netgear:wnr3500l_firmware:*:*:*:*:*:*:*:*
netgear xr450_firmware < 2.3.2.32 cpe:2.3:o:netgear:xr450_firmware:*:*:*:*:*:*:*:*
netgear xr500_firmware < 2.3.2.32 cpe:2.3:o:netgear:xr500_firmware:*:*:*:*:*:*:*:*

References for CVE-2021-38516

cvelogic Threat Intelligence