CVE & CISA-KEV Catalog

CVE-2019-20640

HIGH
8.8
CVSS v3
NVD

Description

Certain NETGEAR devices are affected by a stack-based buffer overflow by an unauthenticated attacker. This affects D3600 before 1.0.0.76, D6000 before 1.0.0.76, D6200 before 1.1.00.32, D7000 before 1.0.1.68, JR6150 before 1.0.1.18, PR2000 before 1.0.0.28, R6020 before 1.0.0.38, R6050 before 1.0.1.18, R6080 before 1.0.0.38, R6120 before 1.0.0.46, R6220 before 1.1.0.80, R6260 before 1.1.0.40, R6700v2 before 1.2.0.36, R6800 before 1.2.0.36, R6900v2 before 1.2.0.36, WNR2020 before 1.1.0.62, and XR500 before 2.3.2.32.

CWE-787Out-of-bounds Write

How to fix

Remediation Available
d3600 firmwareNVD
Affected:< 1.0.0.76Fixed in:1.0.0.76CVE-2019-20640derived from NVD
d6000 firmwareNVD
Affected:< 1.0.0.76Fixed in:1.0.0.76CVE-2019-20640derived from NVD
d6200 firmwareNVD
Affected:< 1.1.00.32Fixed in:1.1.00.32CVE-2019-20640derived from NVD
d7000 firmwareNVD
Affected:< 1.0.1.68Fixed in:1.0.1.68CVE-2019-20640derived from NVD
jr6150 firmwareNVD
Affected:< 1.0.1.18Fixed in:1.0.1.18CVE-2019-20640derived from NVD
pr2000 firmwareNVD
Affected:< 1.0.0.28Fixed in:1.0.0.28CVE-2019-20640derived from NVD
r6020 firmwareNVD
Affected:< 1.0.0.38Fixed in:1.0.0.38CVE-2019-20640derived from NVD
r6050 firmwareNVD
Affected:< 1.0.1.18Fixed in:1.0.1.18CVE-2019-20640derived from NVD
r6080 firmwareNVD
Affected:< 1.0.0.38Fixed in:1.0.0.38CVE-2019-20640derived from NVD
r6120 firmwareNVD
Affected:< 1.0.0.46Fixed in:1.0.0.46CVE-2019-20640derived from NVD
r6220 firmwareNVD
Affected:< 1.1.0.80Fixed in:1.1.0.80CVE-2019-20640derived from NVD
r6260 firmwareNVD
Affected:< 1.1.0.40Fixed in:1.1.0.40CVE-2019-20640derived from NVD
r6700 firmwareNVD
Affected:< 1.2.0.36Fixed in:1.2.0.36CVE-2019-20640derived from NVD
r6800 firmwareNVD
Affected:< 1.2.0.36Fixed in:1.2.0.36CVE-2019-20640derived from NVD
r6900 firmwareNVD
Affected:< 1.2.0.36Fixed in:1.2.0.36CVE-2019-20640derived from NVD
wnr2020 firmwareNVD
Affected:< 1.1.0.62Fixed in:1.1.0.62CVE-2019-20640derived from NVD
xr500 firmwareNVD
Affected:< 2.3.2.32Fixed in:2.3.2.32CVE-2019-20640derived 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
AvailabilityHigh

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

Exploit Intelligence

0.57%probability of exploitation in 30 days
43rdpercentile

Moderate risk: more likely to be exploited than 43% 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.