CVE-2018-21156

CVSS V2 Medium 6.5 CVSS V3 High 7.2
Description
Certain NETGEAR devices are affected by a buffer overflow by an authenticated user. This affects D6220 before 1.0.0.38, D6400 before 1.0.0.74, D7000v2 before 1.0.0.74, D8500 before 1.0.3.39, DGN2200v4 before 1.0.0.102, DGN2200Bv4 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, R6250 before 1.0.4.20, R6300v2 before 1.0.4.22, R6400 before 1.0.1.32, R6400v2 before 1.0.2.52, R6700 before 1.0.1.44, R6900 before 1.0.1.44, R6900P before 1.3.0.18, R7000 before 1.0.9.28, R7000P before 1.3.0.18, R7300DST before 1.0.0.62, R7900 before 1.0.2.10, R7900P before 1.3.0.10, R8000 before 1.0.4.12, R8000P before 1.3.0.10, R8300 before 1.0.2.116, R8500 before 1.0.2.116, WN2500RPv2 before 1.0.1.52, WNDR3400v3 before 1.0.1.18, and WNR3500Lv2 before 1.2.0.46.
Overview
  • CVE ID
  • CVE-2018-21156
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2020-04-27T18:15:12
  • Last Modified Date
  • 2020-05-05T19:55:28
Weakness Enumerations
CWE URL
CWE-120 http://cwe.mitre.org/data/definitions/120.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
AND
cpe:2.3:o:netgear:d6220_firmware:*:*:*:*:*:*:*:* 1 OR 1.0.0.38
cpe:2.3:h:netgear:d6220:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netgear:d6400_firmware:*:*:*:*:*:*:*:* 1 OR 1.0.0.74
cpe:2.3:h:netgear:d6400:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netgear:d7000_firmware:*:*:*:*:*:*:*:* 1 OR 1.0.0.74
cpe:2.3:h:netgear:d7000:v2:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netgear:d8500_firmware:*:*:*:*:*:*:*:* 1 OR 1.0.3.39
cpe:2.3:h:netgear:d8500:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netgear:dgn2200_firmware:*:*:*:*:*:*:*:* 1 OR 1.0.0.102
cpe:2.3:h:netgear:dgn2200:v4:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netgear:dgn2200b_firmware:*:*:*:*:*:*:*:* 1 OR 1.0.0.102
cpe:2.3:h:netgear:dgn2200b:v4:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netgear:ex3700_firmware:*:*:*:*:*:*:*:* 1 OR 1.0.0.70
cpe:2.3:h:netgear:ex3700:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netgear:ex3800_firmware:*:*:*:*:*:*:*:* 1 OR 1.0.0.70
cpe:2.3:h:netgear:ex3800:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netgear:ex6000_firmware:*:*:*:*:*:*:*:* 1 OR 1.0.0.30
cpe:2.3:h:netgear:ex6000:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netgear:ex6100_firmware:*:*:*:*:*:*:*:* 1 OR 1.0.2.22
cpe:2.3:h:netgear:ex6100:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netgear:ex6120_firmware:*:*:*:*:*:*:*:* 1 OR 1.0.0.40
cpe:2.3:h:netgear:ex6120:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netgear:ex6130_firmware:*:*:*:*:*:*:*:* 1 OR 1.0.0.22
cpe:2.3:h:netgear:ex6130:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netgear:ex6150_firmware:*:*:*:*:*:*:*:* 1 OR 1.0.0.38
cpe:2.3:h:netgear:ex6150:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netgear:ex6200_firmware:*:*:*:*:*:*:*:* 1 OR 1.0.3.86
cpe:2.3:h:netgear:ex6200:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netgear:ex7000_firmware:*:*:*:*:*:*:*:* 1 OR 1.0.0.64
cpe:2.3:h:netgear:ex7000:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netgear:r6250_firmware:*:*:*:*:*:*:*:* 1 OR 1.0.4.20
cpe:2.3:h:netgear:r6250:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netgear:r6300_firmware:*:*:*:*:*:*:*:* 1 OR 1.0.4.22
cpe:2.3:h:netgear:r6300:v2:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netgear:r6400_firmware:*:*:*:*:*:*:*:* 1 OR 1.0.1.32
cpe:2.3:h:netgear:r6400:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netgear:r6400_firmware:*:*:*:*:*:*:*:* 1 OR 1.0.2.52
cpe:2.3:h:netgear:r6400:v2:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netgear:r6700_firmware:*:*:*:*:*:*:*:* 1 OR 1.0.1.44
cpe:2.3:h:netgear:r6700:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netgear:r6900_firmware:*:*:*:*:*:*:*:* 1 OR 1.0.1.44
cpe:2.3:h:netgear:r6900:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netgear:r6900p_firmware:*:*:*:*:*:*:*:* 1 OR 1.3.0.18
cpe:2.3:h:netgear:r6900p:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netgear:r7000_firmware:*:*:*:*:*:*:*:* 1 OR 1.0.9.28
cpe:2.3:h:netgear:r7000:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netgear:r7000p_firmware:*:*:*:*:*:*:*:* 1 OR 1.3.0.18
cpe:2.3:h:netgear:r7000p:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netgear:r7300dst_firmware:*:*:*:*:*:*:*:* 1 OR 1.0.0.62
cpe:2.3:h:netgear:r7300dst:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netgear:r7900_firmware:*:*:*:*:*:*:*:* 1 OR 1.0.2.10
cpe:2.3:h:netgear:r7900:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netgear:r7900p_firmware:*:*:*:*:*:*:*:* 1 OR 1.3.0.10
cpe:2.3:h:netgear:r7900p:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netgear:r8000_firmware:*:*:*:*:*:*:*:* 1 OR 1.0.4.12
cpe:2.3:h:netgear:r8000:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netgear:r8000p_firmware:*:*:*:*:*:*:*:* 1 OR 1.3.0.10
cpe:2.3:h:netgear:r8000p:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netgear:r8300_firmware:*:*:*:*:*:*:*:* 1 OR 1.0.2.116
cpe:2.3:h:netgear:r8300:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netgear:r8500_firmware:*:*:*:*:*:*:*:* 1 OR 1.0.2.116
cpe:2.3:h:netgear:r8500:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netgear:wn2500rp_firmware:*:*:*:*:*:*:*:* 1 OR 1.0.1.52
cpe:2.3:h:netgear:wn2500rp:v2:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netgear:wndr3400_firmware:*:*:*:*:*:*:*:* 1 OR 1.0.1.18
cpe:2.3:h:netgear:wndr3400:v3:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netgear:wnr3500l_firmware:*:*:*:*:*:*:*:* 1 OR 1.2.0.46
cpe:2.3:h:netgear:wnr3500l:v2:*:*:*:*:*:*:* 0 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:S/C:P/I:P/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • SINGLE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • PARTIAL
  • Availability Impact
  • PARTIAL
  • Base Score
  • 6.5
  • Severity
  • MEDIUM
  • Exploitability Score
  • 8
  • Impact Score
  • 6.4
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • HIGH
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • HIGH
  • Base Score
  • 7.2
  • Base Severity
  • HIGH
  • Exploitability Score
  • 1.2
  • Impact Score
  • 5.9
References
Reference URL Reference Tags
https://kb.netgear.com/000059474/Security-Advisory-for-Post-Authentication-Buffer-Overflow-on-Some-Gateways-Routers-and-Extenders-PSV-2017-2460 Vendor Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2018-21156
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-21156
History
Created Old Value New Value Data Type Notes
2022-05-10 17:34:06 Added to TrackCVE
2022-12-04 15:45:02 2020-04-27T18:15Z 2020-04-27T18:15:12 CVE Published Date updated
2022-12-04 15:45:02 2020-05-05T19:55:28 CVE Modified Date updated
2022-12-04 15:45:03 Analyzed Vulnerability Status updated