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ID

VAR-202312-0618


CVE

CVE-2023-50211


TITLE

D-Link Systems, Inc.  of  G416  Out-of-bounds write vulnerability in firmware

Trust: 0.8

sources: JVNDB: JVNDB-2023-028281

DESCRIPTION

D-Link G416 httpd API-AUTH Timestamp Processing Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link G416 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the HTTP service listening on TCP port 80. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-21663. D-Link Systems, Inc. of G416 An out-of-bounds write vulnerability exists in firmware.Information is obtained, information is tampered with, and service operation is interrupted. (DoS) It may be in a state. The D-Link G416 is the AX1500 4G+ smart router launched by D-Link in June 2025. It supports Wi-Fi 6, AI-powered optimization, and 4G LTE Cat 6 network, offering speeds up to 300Mbps

Trust: 2.88

sources: NVD: CVE-2023-50211 // JVNDB: JVNDB-2023-028281 // ZDI: ZDI-23-1827 // CNVD: CNVD-2025-18887 // VULMON: CVE-2023-50211

IOT TAXONOMY

category:['Network device']sub_category: -

Trust: 0.6

sources: CNVD: CNVD-2025-18887

AFFECTED PRODUCTS

vendor:d linkmodel:g416scope: - version: -

Trust: 2.1

vendor:dlinkmodel:g416scope:ltversion:1.09b01

Trust: 1.0

vendor:d linkmodel:g416scope:eqversion:g416 firmware 1.09b01

Trust: 0.8

vendor:d linkmodel:g416scope:eqversion: -

Trust: 0.8

sources: ZDI: ZDI-23-1827 // CNVD: CNVD-2025-18887 // JVNDB: JVNDB-2023-028281 // NVD: CVE-2023-50211

CVSS

SEVERITY

CVSSV2

CVSSV3

zdi-disclosures@trendmicro.com: CVE-2023-50211
value: HIGH

Trust: 1.0

nvd@nist.gov: CVE-2023-50211
value: HIGH

Trust: 1.0

NVD: CVE-2023-50211
value: HIGH

Trust: 0.8

ZDI: CVE-2023-50211
value: HIGH

Trust: 0.7

CNVD: CNVD-2025-18887
value: HIGH

Trust: 0.6

CNVD: CNVD-2025-18887
severity: HIGH
baseScore: 8.3
vectorString: AV:A/AC:L/AU:N/C:C/I:C/A:C
accessVector: ADJACENT_NETWORK
accessComplexity: LOW
authentication: NONE
confidentialityImpact: COMPLETE
integrityImpact: COMPLETE
availabilityImpact: COMPLETE
exploitabilityScore: 6.5
impactScore: 10.0
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.6

zdi-disclosures@trendmicro.com: CVE-2023-50211
baseSeverity: HIGH
baseScore: 8.8
vectorString: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
attackVector: ADJACENT
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: 2.8
impactScore: 5.9
version: 3.0

Trust: 1.8

nvd@nist.gov: CVE-2023-50211
baseSeverity: HIGH
baseScore: 8.8
vectorString: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
attackVector: ADJACENT
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: 2.8
impactScore: 5.9
version: 3.1

Trust: 1.0

ZDI: CVE-2023-50211
baseSeverity: HIGH
baseScore: 8.8
vectorString: AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
attackVector: ADJACENT
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: 2.8
impactScore: 5.9
version: 3.0

Trust: 0.7

sources: ZDI: ZDI-23-1827 // CNVD: CNVD-2025-18887 // JVNDB: JVNDB-2023-028281 // NVD: CVE-2023-50211 // NVD: CVE-2023-50211

PROBLEMTYPE DATA

problemtype:CWE-121

Trust: 1.0

problemtype:CWE-787

Trust: 1.0

problemtype:Stack-based buffer overflow (CWE-121) [ others ]

Trust: 0.8

problemtype: Out-of-bounds writing (CWE-787) [NVD evaluation ]

Trust: 0.8

sources: JVNDB: JVNDB-2023-028281 // NVD: CVE-2023-50211

PATCH

title:D-Link has issued an update to correct this vulnerability.url:https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10367

Trust: 0.7

title:Patch for D-Link G416 Buffer Overflow Vulnerabilityurl:https://www.cnvd.org.cn/patchInfo/show/719861

Trust: 0.6

sources: ZDI: ZDI-23-1827 // CNVD: CNVD-2025-18887

EXTERNAL IDS

db:NVDid:CVE-2023-50211

Trust: 4.0

db:ZDIid:ZDI-23-1827

Trust: 2.6

db:DLINKid:SAP10367

Trust: 1.8

db:JVNDBid:JVNDB-2023-028281

Trust: 0.8

db:ZDI_CANid:ZDI-CAN-21663

Trust: 0.7

db:CNVDid:CNVD-2025-18887

Trust: 0.6

db:VULMONid:CVE-2023-50211

Trust: 0.1

sources: ZDI: ZDI-23-1827 // CNVD: CNVD-2025-18887 // VULMON: CVE-2023-50211 // JVNDB: JVNDB-2023-028281 // NVD: CVE-2023-50211

REFERENCES

url:https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=sap10367

Trust: 2.5

url:https://www.zerodayinitiative.com/advisories/zdi-23-1827/

Trust: 1.9

url:https://nvd.nist.gov/vuln/detail/cve-2023-50211

Trust: 0.8

url:https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2023-50211

Trust: 0.6

sources: ZDI: ZDI-23-1827 // CNVD: CNVD-2025-18887 // VULMON: CVE-2023-50211 // JVNDB: JVNDB-2023-028281 // NVD: CVE-2023-50211

CREDITS

Dmitry "InfoSecDJ" Janushkevich of Trend Micro Zero Day Initiative

Trust: 0.7

sources: ZDI: ZDI-23-1827

SOURCES

db:ZDIid:ZDI-23-1827
db:CNVDid:CNVD-2025-18887
db:VULMONid:CVE-2023-50211
db:JVNDBid:JVNDB-2023-028281
db:NVDid:CVE-2023-50211

LAST UPDATE DATE

2025-08-21T23:11:17.681000+00:00


SOURCES UPDATE DATE

db:ZDIid:ZDI-23-1827date:2023-12-20T00:00:00
db:CNVDid:CNVD-2025-18887date:2025-08-20T00:00:00
db:JVNDBid:JVNDB-2023-028281date:2025-03-11T01:26:00
db:NVDid:CVE-2023-50211date:2025-03-10T16:26:06.647

SOURCES RELEASE DATE

db:ZDIid:ZDI-23-1827date:2023-12-20T00:00:00
db:CNVDid:CNVD-2025-18887date:2025-08-18T00:00:00
db:JVNDBid:JVNDB-2023-028281date:2025-03-11T00:00:00
db:NVDid:CVE-2023-50211date:2024-05-03T03:16:08.303