CVE-2019-20700 : Certain NETGEAR devices are affected by a stack-based buffer overflow by an unau

Certain NETGEAR devices are affected by a stack-based buffer overflow by an unauthenticated attacker. This affects D6220 before 1.0.0.44, D6400 before 1.0.0.78, D7000v2 before 1.0.0.51, D8500 before 1.0.3.42, DGN2200v4 before 1.0.0.110, DGND2200Bv4 before 1.0.0.110, EX3700 before 1.0.0.70, EX3800 before 1.0.0.70, EX6000 before 1.0.0.30, EX6100 before 1.0.2.24, EX6120 before 1.0.0.40, EX6130 before 1.0.0.22, EX6150v1 before 1.0.0.42, EX6200 before 1.0.3.88, EX7000 before 1.0.0.66, R6250 before 1.0.4.26, R6300v2 before 1.0.4.28, R6400 before 1.0.1.36, R6400v2 before 1.0.2.52, R6700 before 1.0.1.46, R6900 before 1.0.1.46, R7000 before 1.0.9.28, R7900 before 1.0.2.10, R8000 before 1.0.4.12, R8300 before 1.0.2.122, R8500 before 1.0.2.122, R6900P before 1.3.1.64, R7000P before 1.3.1.64, R7100LG before 1.0.0.46, R7300DST before 1.0.0.68, R7900P before 1.3.0.10, R8000P before 1.3.0.10, WN2500RPv2 before 1.0.1.54, WNDR3400v3 before 1.0.1.22, and WNR3500Lv2 before 1.2.0.54.

Published 2020-04-16 19:15:24

Updated 2020-04-23 13:25:14

Source MITRE

View at NVD, CVE.org

Vulnerability category: OverflowMemory Corruption

Products affected by CVE-2019-20700

Netgear » R6400 Firmware
Versions before (<) 1.0.1.36
cpe:2.3:o:netgear:r6400_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » R6400 » Version: N/A
Netgear » R6400 Firmware
Versions before (<) 1.0.2.52
cpe:2.3:o:netgear:r6400_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » R6400 » Version: V2
Netgear » R6700 Firmware
Versions before (<) 1.0.1.46
cpe:2.3:o:netgear:r6700_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » R6700 » Version: N/A
Netgear » R6900 Firmware
Versions before (<) 1.0.1.46
cpe:2.3:o:netgear:r6900_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » R6900 » Version: N/A
Netgear » R7000 Firmware
Versions before (<) 1.0.9.28
cpe:2.3:o:netgear:r7000_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » R7000 » Version: N/A
Netgear » R7100lg Firmware
Versions before (<) 1.0.0.46
cpe:2.3:o:netgear:r7100lg_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » R7100lg » Version: N/A
Netgear » R7300dst Firmware
Versions before (<) 1.0.0.68
cpe:2.3:o:netgear:r7300dst_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » R7300dst » Version: N/A
Netgear » R7900 Firmware
Versions before (<) 1.0.2.10
cpe:2.3:o:netgear:r7900_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » R7900 » Version: N/A
Netgear » R8000 Firmware
Versions before (<) 1.0.4.12
cpe:2.3:o:netgear:r8000_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » R8000 » Version: N/A
Netgear » D6220 Firmware
Versions before (<) 1.0.0.44
cpe:2.3:o:netgear:d6220_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » D6220 » Version: N/A
Netgear » D6400 Firmware
Versions before (<) 1.0.0.78
cpe:2.3:o:netgear:d6400_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » D6400 » Version: N/A
Netgear » R6250 Firmware
Versions before (<) 1.0.4.26
cpe:2.3:o:netgear:r6250_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » R6250 » Version: N/A
Netgear » R6300 Firmware
Versions before (<) 1.0.4.28
cpe:2.3:o:netgear:r6300_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » R6300 » Version: V2
Netgear » Dgn2200 Firmware
Versions before (<) 1.0.0.110
cpe:2.3:o:netgear:dgn2200_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » Dgn2200 » Version: V4
Netgear » Ex7000 Firmware
Versions before (<) 1.0.0.66
cpe:2.3:o:netgear:ex7000_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » Ex7000 » Version: N/A
Netgear » Wnr3500l Firmware
Versions before (<) 1.2.0.54
cpe:2.3:o:netgear:wnr3500l_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » Wnr3500l » Version: V2
Netgear » Wndr3400 Firmware
Versions before (<) 1.0.1.22
cpe:2.3:o:netgear:wndr3400_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » Wndr3400 » Version: V3
Netgear » D7000 Firmware
Versions before (<) 1.0.0.51
cpe:2.3:o:netgear:d7000_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » D7000 » Version: V2
Netgear » R8300 Firmware
Versions before (<) 1.0.2.122
cpe:2.3:o:netgear:r8300_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » R8300 » Version: N/A
Netgear » R8500 Firmware
Versions before (<) 1.0.2.122
cpe:2.3:o:netgear:r8500_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » R8500 » Version: N/A
Netgear » Ex6150 Firmware
Versions before (<) 1.0.0.42
cpe:2.3:o:netgear:ex6150_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » Ex6150 » Version: V1
Netgear » R7000p Firmware
Versions before (<) 1.3.1.64
cpe:2.3:o:netgear:r7000p_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » R7000p » Version: N/A
Netgear » R6900p Firmware
Versions before (<) 1.3.1.64
cpe:2.3:o:netgear:r6900p_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » R6900p » Version: N/A
Netgear » Ex3700 Firmware
Versions before (<) 1.0.0.70
cpe:2.3:o:netgear:ex3700_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » Ex3700 » Version: N/A
Netgear » Ex3800 Firmware
Versions before (<) 1.0.0.70
cpe:2.3:o:netgear:ex3800_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » Ex3800 » Version: N/A
Netgear » Ex6100 Firmware
Versions before (<) 1.0.2.24
cpe:2.3:o:netgear:ex6100_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » Ex6100 » Version: N/A
Netgear » Ex6120 Firmware
Versions before (<) 1.0.0.40
cpe:2.3:o:netgear:ex6120_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » Ex6120 » Version: N/A
Netgear » Ex6200 Firmware
Versions before (<) 1.0.3.88
cpe:2.3:o:netgear:ex6200_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » Ex6200 » Version: N/A
Netgear » D8500 Firmware
Versions before (<) 1.0.3.42
cpe:2.3:o:netgear:d8500_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » D8500 » Version: N/A
Netgear » Ex6130 Firmware
Versions before (<) 1.0.0.22
cpe:2.3:o:netgear:ex6130_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » Ex6130 » Version: N/A
Netgear » Dgnd2200b Firmware
Versions before (<) 1.0.0.110
cpe:2.3:o:netgear:dgnd2200b_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » Dgnd2200b » Version: V4
Netgear » Ex6000 Firmware
Versions before (<) 1.0.0.30
cpe:2.3:o:netgear:ex6000_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » Ex6000 » Version: N/A
Netgear » Wn2500rp Firmware
Versions before (<) 1.0.1.54
cpe:2.3:o:netgear:wn2500rp_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » Wn2500rp » Version: V2
Netgear » R7900p Firmware
Versions before (<) 1.3.0.10
cpe:2.3:o:netgear:r7900p_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » R7900p » Version: N/A
Netgear » R8000p Firmware
Versions before (<) 1.3.0.10
cpe:2.3:o:netgear:r8000p_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Netgear » R8000p » Version: N/A

Exploit prediction scoring system (EPSS) score for CVE-2019-20700

EPSS FAQ

0.04%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 10 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2019-20700

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
4.6	MEDIUM	AV:L/AC:L/Au:N/C:P/I:P/A:P	3.9	6.4	NIST
Access Vector: Local Access Complexity: Low Authentication: None Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: Partial
5.6	MEDIUM	CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:L	0.8	4.7	MITRE
Attack Vector: Local Attack Complexity: Low Privileges Required: High User Interaction: None Scope: Unchanged Confidentiality: High Integrity: Low Availability: Low
6.7	MEDIUM	CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H	0.8	5.9	NIST
Attack Vector: Local Attack Complexity: Low Privileges Required: High User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High

CWE ids for CVE-2019-20700

CWE-787 Out-of-bounds Write

The product writes data past the end, or before the beginning, of the intended buffer.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2019-20700

https://kb.netgear.com/000061194/Security-Advisory-for-Pre-Authentication-Stack-Overflow-on-Some-Routers-Gateways-and-Extenders-PSV-2017-2018

Security Advisory for Pre-Authentication Stack Overflow on Some Routers, Gateways, and Extenders, PSV-2017-2018 | Answer | NETGEAR Support
Vendor Advisory

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Vulnerability Details : CVE-2019-20700

Products affected by CVE-2019-20700

Exploit prediction scoring system (EPSS) score for CVE-2019-20700

CVSS scores for CVE-2019-20700

CWE ids for CVE-2019-20700

References for CVE-2019-20700