CVE & CISA-KEV Catalog

CVE-2021-45527

CRITICAL
9.6
CVSS v3
NVD

Description

Certain NETGEAR devices are affected by a buffer overflow by an authenticated user. This affects D6220 before 1.0.0.68, D6400 before 1.0.0.102, D7000v2 before 1.0.0.66, D8500 before 1.0.3.58, DC112A before 1.0.0.54, EX7000 before 1.0.1.94, EX7500 before 1.0.0.72, R6250 before 1.0.4.48, R6300v2 before 1.0.4.52, R6400 before 1.0.1.70, R6400v2 before 1.0.4.102, R6700v3 before 1.0.4.102, R7000 before 1.0.11.116, R7100LG before 1.0.0.64, R7850 before 1.0.5.68, R7900 before 1.0.4.30, R7960P before 1.4.1.68, R8000 before 1.0.4.52, RAX200 before 1.0.2.88, RBS40V before 2.6.2.4, RS400 before 1.5.1.80, XR300 before 1.0.3.56, R7000P before 1.3.2.124, R8000P before 1.4.1.68, R8500 before 1.0.2.144, RAX80 before 1.0.3.102, R6900P before 1.3.2.124, R7900P before 1.4.1.68, R8300 before 1.0.2.144, RAX75 before 1.0.3.102, RBR750 before 3.2.17.12, RBR850 before 3.2.17.12, RBS750 before 3.2.17.12, RBS850 before 3.2.17.12, RBK752 before 3.2.17.12, and RBK852 before 3.2.17.12.

CWE-120Classic Buffer Overflow

How to fix

Remediation Available
d6220 firmwareNVD
Affected:< 1.0.0.68Fixed in:1.0.0.68CVE-2021-45527derived from NVD
d6400 firmwareNVD
Affected:< 1.0.0.102Fixed in:1.0.0.102CVE-2021-45527derived from NVD
d7000v2 firmwareNVD
Affected:< 1.0.0.66Fixed in:1.0.0.66CVE-2021-45527derived from NVD
d8500 firmwareNVD
Affected:< 1.0.3.58Fixed in:1.0.3.58CVE-2021-45527derived from NVD
dc112a firmwareNVD
Affected:< 1.0.0.54Fixed in:1.0.0.54CVE-2021-45527derived from NVD
ex7000 firmwareNVD
Affected:< 1.0.1.94Fixed in:1.0.1.94CVE-2021-45527derived from NVD
ex7500 firmwareNVD
Affected:< 1.0.0.72Fixed in:1.0.0.72CVE-2021-45527derived from NVD
r6250 firmwareNVD
Affected:< 1.0.4.48Fixed in:1.0.4.48CVE-2021-45527derived from NVD
r6300v2 firmwareNVD
Affected:< 1.0.4.52Fixed in:1.0.4.52CVE-2021-45527derived from NVD
r6400 firmwareNVD
Affected:< 1.0.1.70Fixed in:1.0.1.70CVE-2021-45527derived from NVD
r6400v2 firmwareNVD
Affected:< 1.0.4.102Fixed in:1.0.4.102CVE-2021-45527derived from NVD
r6700v3 firmwareNVD
Affected:< 1.0.4.102Fixed in:1.0.4.102CVE-2021-45527derived from NVD
r6900p firmwareNVD
Affected:< 1.3.2.124Fixed in:1.3.2.124CVE-2021-45527derived from NVD
r7000 firmwareNVD
Affected:< 1.0.11.116Fixed in:1.0.11.116CVE-2021-45527derived from NVD
r7000p firmwareNVD
Affected:< 1.3.2.124Fixed in:1.3.2.124CVE-2021-45527derived from NVD
r7100lg firmwareNVD
Affected:< 1.0.0.64Fixed in:1.0.0.64CVE-2021-45527derived from NVD
r7850 firmwareNVD
Affected:< 1.0.5.68Fixed in:1.0.5.68CVE-2021-45527derived from NVD
r7900 firmwareNVD
Affected:< 1.0.4.30Fixed in:1.0.4.30CVE-2021-45527derived from NVD
r7900p firmwareNVD
Affected:< 1.4.1.68Fixed in:1.4.1.68CVE-2021-45527derived from NVD
r7960p firmwareNVD
Affected:< 1.4.1.68Fixed in:1.4.1.68CVE-2021-45527derived from NVD
r8000 firmwareNVD
Affected:< 1.0.4.52Fixed in:1.0.4.52CVE-2021-45527derived from NVD
r8000p firmwareNVD
Affected:< 1.4.1.68Fixed in:1.4.1.68CVE-2021-45527derived from NVD
r8300 firmwareNVD
Affected:< 1.0.2.144Fixed in:1.0.2.144CVE-2021-45527derived from NVD
r8500 firmwareNVD
Affected:< 1.0.2.144Fixed in:1.0.2.144CVE-2021-45527derived from NVD
rax200 firmwareNVD
Affected:< 1.0.2.88Fixed in:1.0.2.88CVE-2021-45527derived from NVD
rax75 firmwareNVD
Affected:< 1.0.3.102Fixed in:1.0.3.102CVE-2021-45527derived from NVD
rax80 firmwareNVD
Affected:< 1.0.3.102Fixed in:1.0.3.102CVE-2021-45527derived from NVD
rbk752 firmwareNVD
Affected:< 3.2.17.12Fixed in:3.2.17.12CVE-2021-45527derived from NVD
rbk852 firmwareNVD
Affected:< 3.2.17.12Fixed in:3.2.17.12CVE-2021-45527derived from NVD
rbr750 firmwareNVD
Affected:< 3.2.17.12Fixed in:3.2.17.12CVE-2021-45527derived from NVD
rbr850 firmwareNVD
Affected:< 3.2.17.12Fixed in:3.2.17.12CVE-2021-45527derived from NVD
rbs40v firmwareNVD
Affected:< 2.6.2.4Fixed in:2.6.2.4CVE-2021-45527derived from NVD
rbs750 firmwareNVD
Affected:< 3.2.17.12Fixed in:3.2.17.12CVE-2021-45527derived from NVD
rbs850 firmwareNVD
Affected:< 3.2.17.12Fixed in:3.2.17.12CVE-2021-45527derived from NVD
rs400 firmwareNVD
Affected:< 1.5.1.80Fixed in:1.5.1.80CVE-2021-45527derived from NVD
xr300 firmwareNVD
Affected:< 1.0.3.56Fixed in:1.0.3.56CVE-2021-45527derived 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
ScopeChanged

Impact

ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

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

Exploit Intelligence

1.13%probability of exploitation in 30 days
62ndpercentile

Moderate risk: more likely to be exploited than 62% of all known CVEs.

References

Related Vulnerabilities

Other CWE-120 (Classic Buffer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2014-0195Medium6.8100%-Fix
CVE-2017-7269Critical9.8100%KEV-
CVE-2019-11043High8.799%KEV + RansomFix
CVE-2011-4862High10.095%-Fix
CVE-2007-5659High7.894%KEVFix
CVE-2022-3786High7.591%-Fix
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CVE-2021-45527 severity badge

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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.