CVE & CISA-KEV Catalog

CVE-2018-21163

HIGH
7.2
CVSS v3
NVD

Description

Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user. This affects DGN2200Bv4 before 1.0.0.102, DGN2200v4 before 1.0.0.102, EX3700 before 1.0.0.70, EX3800 before 1.0.0.70, EX6000 before 1.0.0.30, EX6100 before 1.0.2.22, EX6120 before 1.0.0.40, EX6130 before 1.0.0.22, EX6150 before 1.0.0.38, EX6200 before 1.0.3.86, EX7000 before 1.0.0.64, R6300v2 before 1.0.4.22, R6900P before 1.3.0.18, R7000P before 1.3.0.18, R7300DST before 1.0.0.62, R7900P before 1.3.0.10, R8000 before 1.0.4.12, R8000P before 1.3.0.10, WN2500RPv2 before 1.0.1.52, and WNDR3400v3 before 1.0.1.18.

CWE-787Out-of-bounds Write

How to fix

Remediation Available
dgn2200 firmwareNVD
Affected:< 1.0.0.102Fixed in:1.0.0.102CVE-2018-21163derived from NVD
dgn2200b firmwareNVD
Affected:< 1.0.0.102Fixed in:1.0.0.102CVE-2018-21163derived from NVD
ex3700 firmwareNVD
Affected:< 1.0.0.70Fixed in:1.0.0.70CVE-2018-21163derived from NVD
ex3800 firmwareNVD
Affected:< 1.0.0.70Fixed in:1.0.0.70CVE-2018-21163derived from NVD
ex6000 firmwareNVD
Affected:< 1.0.0.30Fixed in:1.0.0.30CVE-2018-21163derived from NVD
ex6100 firmwareNVD
Affected:< 1.0.2.22Fixed in:1.0.2.22CVE-2018-21163derived from NVD
ex6120 firmwareNVD
Affected:< 1.0.0.40Fixed in:1.0.0.40CVE-2018-21163derived from NVD
ex6130 firmwareNVD
Affected:< 1.0.0.22Fixed in:1.0.0.22CVE-2018-21163derived from NVD
ex6150 firmwareNVD
Affected:< 1.0.0.38Fixed in:1.0.0.38CVE-2018-21163derived from NVD
ex6200 firmwareNVD
Affected:< 1.0.3.86Fixed in:1.0.3.86CVE-2018-21163derived from NVD
ex7000 firmwareNVD
Affected:< 1.0.0.64Fixed in:1.0.0.64CVE-2018-21163derived from NVD
r6300 firmwareNVD
Affected:< 1.0.4.22Fixed in:1.0.4.22CVE-2018-21163derived from NVD
r6900p firmwareNVD
Affected:< 1.3.0.18Fixed in:1.3.0.18CVE-2018-21163derived from NVD
r7000p firmwareNVD
Affected:< 1.3.0.18Fixed in:1.3.0.18CVE-2018-21163derived from NVD
r7300dst firmwareNVD
Affected:< 1.0.0.62Fixed in:1.0.0.62CVE-2018-21163derived from NVD
r7900p firmwareNVD
Affected:< 1.3.0.10Fixed in:1.3.0.10CVE-2018-21163derived from NVD
r8000 firmwareNVD
Affected:< 1.0.4.12Fixed in:1.0.4.12CVE-2018-21163derived from NVD
r8000p firmwareNVD
Affected:< 1.3.0.10Fixed in:1.3.0.10CVE-2018-21163derived from NVD
wn2500rp firmwareNVD
Affected:< 1.0.1.52Fixed in:1.0.1.52CVE-2018-21163derived from NVD
wndr3400 firmwareNVD
Affected:< 1.0.1.18Fixed in:1.0.1.18CVE-2018-21163derived 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 VectorNetwork
Attack ComplexityLow
Privileges RequiredHigh
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

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

Exploit Intelligence

1.08%probability of exploitation in 30 days
61stpercentile

Moderate risk: more likely to be exploited than 61% of all known CVEs.

References

Vendor Advisory1

Related Vulnerabilities

Other CWE-787 (Out-of-bounds Write) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2025-22457Critical9.0100%KEV + RansomFix
CVE-2025-0282Critical9.0100%KEV + Ransom-
CVE-2015-3113Critical9.8100%KEVFix
CVE-2021-20038Critical9.8100%KEV + Ransom-
CVE-2023-4863High8.8100%KEVFix
CVE-2020-16040Medium6.5100%-Fix
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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.