CVE & CISA-KEV Catalog

CVE-2021-38527

HIGHEPSS 74th pctl
8.1
CVSS v3
NVD

Description

Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. This affects CBR40 before 2.5.0.14, EX6100v2 before 1.0.1.98, EX6150v2 before 1.0.1.98, EX6250 before 1.0.0.132, EX6400 before 1.0.2.158, EX6400v2 before 1.0.0.132, EX6410 before 1.0.0.132, EX6420 before 1.0.0.132, EX7300 before 1.0.2.158, EX7300v2 before 1.0.0.132, EX7320 before 1.0.0.132, EX7700 before 1.0.0.216, EX8000 before 1.0.1.232, R7800 before 1.0.2.78, RBK12 before 2.6.1.44, RBR10 before 2.6.1.44, RBS10 before 2.6.1.44, RBK20 before 2.6.1.38, RBR20 before 2.6.1.36, RBS20 before 2.6.1.38, RBK40 before 2.6.1.38, RBR40 before 2.6.1.36, RBS40 before 2.6.1.38, RBK50 before 2.6.1.40, RBR50 before 2.6.1.40, RBS50 before 2.6.1.40, 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, RBS40V before 2.6.2.4, RBS50Y before 2.6.1.40, RBW30 before 2.6.2.2, and XR500 before 2.3.2.114.

CWE-77Command Injection

How to fix

Remediation Available
cbr40 firmwareNVD
Affected:< 2.5.0.14Fixed in:2.5.0.14CVE-2021-38527derived from NVD
ex6100 firmwareNVD
Affected:< 1.0.1.98Fixed in:1.0.1.98CVE-2021-38527derived from NVD
ex6150 firmwareNVD
Affected:< 1.0.1.98Fixed in:1.0.1.98CVE-2021-38527derived from NVD
ex6250 firmwareNVD
Affected:< 1.0.0.132Fixed in:1.0.0.132CVE-2021-38527derived from NVD
ex6400 firmwareNVD
Affected:< 1.0.0.132Fixed in:1.0.0.132CVE-2021-38527derived from NVD
ex6410 firmwareNVD
Affected:< 1.0.0.132Fixed in:1.0.0.132CVE-2021-38527derived from NVD
ex6420 firmwareNVD
Affected:< 1.0.0.132Fixed in:1.0.0.132CVE-2021-38527derived from NVD
ex7300 firmwareNVD
Affected:< 1.0.2.158Fixed in:1.0.2.158CVE-2021-38527derived from NVD
ex7320 firmwareNVD
Affected:< 1.0.0.132Fixed in:1.0.0.132CVE-2021-38527derived from NVD
ex7700 firmwareNVD
Affected:< 1.0.0.216Fixed in:1.0.0.216CVE-2021-38527derived from NVD
ex8000 firmwareNVD
Affected:< 1.0.1.232Fixed in:1.0.1.232CVE-2021-38527derived from NVD
r7800 firmwareNVD
Affected:< 1.0.2.78Fixed in:1.0.2.78CVE-2021-38527derived from NVD
rbk12 firmwareNVD
Affected:< 2.6.1.44Fixed in:2.6.1.44CVE-2021-38527derived from NVD
rbk20 firmwareNVD
Affected:< 2.6.1.38Fixed in:2.6.1.38CVE-2021-38527derived from NVD
rbk40 firmwareNVD
Affected:< 2.6.1.38Fixed in:2.6.1.38CVE-2021-38527derived from NVD
rbk50 firmwareNVD
Affected:< 2.6.1.40Fixed in:2.6.1.40CVE-2021-38527derived from NVD
rbk752 firmwareNVD
Affected:< 3.2.16.6Fixed in:3.2.16.6CVE-2021-38527derived from NVD
rbk852 firmwareNVD
Affected:< 3.2.16.6Fixed in:3.2.16.6CVE-2021-38527derived from NVD
rbr10 firmwareNVD
Affected:< 2.6.1.44Fixed in:2.6.1.44CVE-2021-38527derived from NVD
rbr20 firmwareNVD
Affected:< 2.6.1.36Fixed in:2.6.1.36CVE-2021-38527derived from NVD
rbr40 firmwareNVD
Affected:< 2.6.1.36Fixed in:2.6.1.36CVE-2021-38527derived from NVD
rbr50 firmwareNVD
Affected:< 2.6.1.40Fixed in:2.6.1.40CVE-2021-38527derived from NVD
rbr750 firmwareNVD
Affected:< 3.2.16.6Fixed in:3.2.16.6CVE-2021-38527derived from NVD
rbr850 firmwareNVD
Affected:< 3.2.16.6Fixed in:3.2.16.6CVE-2021-38527derived from NVD
rbs10 firmwareNVD
Affected:< 2.6.1.44Fixed in:2.6.1.44CVE-2021-38527derived from NVD
rbs20 firmwareNVD
Affected:< 2.6.1.38Fixed in:2.6.1.38CVE-2021-38527derived from NVD
rbs40 firmwareNVD
Affected:< 2.6.1.38Fixed in:2.6.1.38CVE-2021-38527derived from NVD
rbs40v firmwareNVD
Affected:< 2.6.2.4Fixed in:2.6.2.4CVE-2021-38527derived from NVD
rbs50 firmwareNVD
Affected:< 2.6.1.40Fixed in:2.6.1.40CVE-2021-38527derived from NVD
rbs50y firmwareNVD
Affected:< 2.6.1.40Fixed in:2.6.1.40CVE-2021-38527derived from NVD
rbs750 firmwareNVD
Affected:< 3.2.16.6Fixed in:3.2.16.6CVE-2021-38527derived from NVD
rbs850 firmwareNVD
Affected:< 3.2.16.6Fixed in:3.2.16.6CVE-2021-38527derived from NVD
rbw30 firmwareNVD
Affected:< 2.6.2.2Fixed in:2.6.2.2CVE-2021-38527derived from NVD
xr500 firmwareNVD
Affected:< 2.3.2.114Fixed in:2.3.2.114CVE-2021-38527derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorAdjacent
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityHigh
IntegrityHigh
AvailabilityNone

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Exploit Intelligence

1.69%probability of exploitation in 30 days
74thpercentile

Elevated risk: more likely to be exploited than 74% of all known CVEs.

References

Vendor Advisory1

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.