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ID

VAR-202308-3321


CVE

CVE-2023-35756


TITLE

D-Link Systems, Inc.  of  DAP-2622  Out-of-bounds write vulnerability in firmware

Trust: 0.8

sources: JVNDB: JVNDB-2023-028874

DESCRIPTION

D-Link DAP-2622 DDP Set Date-Time Auth Password Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DAP-2622 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the DDP service. 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-20084. D-Link Systems, Inc. of DAP-2622 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 DAP-2622 is a wireless access point (AP) from D-Link that supports PoE power supply and is primarily used for wireless network coverage in enterprise or commercial settings

Trust: 2.88

sources: NVD: CVE-2023-35756 // JVNDB: JVNDB-2023-028874 // ZDI: ZDI-23-1261 // CNVD: CNVD-2025-29680 // VULMON: CVE-2023-35756

IOT TAXONOMY

category:['Network device']sub_category: -

Trust: 0.6

sources: CNVD: CNVD-2025-29680

AFFECTED PRODUCTS

vendor:d linkmodel:dap-2622scope: - version: -

Trust: 2.1

vendor:dlinkmodel:dap-2622scope:ltversion:1.10b03r022

Trust: 1.0

vendor:d linkmodel:dap-2622scope:eqversion: -

Trust: 0.8

vendor:d linkmodel:dap-2622scope:eqversion:dap-2622 firmware 1.10b03r022

Trust: 0.8

sources: ZDI: ZDI-23-1261 // CNVD: CNVD-2025-29680 // JVNDB: JVNDB-2023-028874 // NVD: CVE-2023-35756

CVSS

SEVERITY

CVSSV2

CVSSV3

zdi-disclosures@trendmicro.com: CVE-2023-35756
value: HIGH

Trust: 1.0

nvd@nist.gov: CVE-2023-35756
value: HIGH

Trust: 1.0

NVD: CVE-2023-35756
value: HIGH

Trust: 0.8

ZDI: CVE-2023-35756
value: HIGH

Trust: 0.7

CNVD: CNVD-2025-29680
value: HIGH

Trust: 0.6

CNVD: CNVD-2025-29680
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-2023-35756
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-2023-35756
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-2023-35756
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-23-1261 // CNVD: CNVD-2025-29680 // JVNDB: JVNDB-2023-028874 // NVD: CVE-2023-35756 // NVD: CVE-2023-35756

PROBLEMTYPE DATA

problemtype:CWE-787

Trust: 1.0

problemtype:CWE-121

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-2023-028874 // NVD: CVE-2023-35756

PATCH

title:D-Link has issued an update to correct this vulnerability.url:https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10349

Trust: 0.7

title:Patch for D-Link DAP-2622 Stack Buffer Overflow Remote Code Execution Vulnerability (CNVD-2025-29680)url:https://www.cnvd.org.cn/patchInfo/show/776441

Trust: 0.6

sources: ZDI: ZDI-23-1261 // CNVD: CNVD-2025-29680

EXTERNAL IDS

db:NVDid:CVE-2023-35756

Trust: 4.0

db:ZDIid:ZDI-23-1261

Trust: 2.6

db:DLINKid:SAP10349

Trust: 1.8

db:JVNDBid:JVNDB-2023-028874

Trust: 0.8

db:ZDI_CANid:ZDI-CAN-20084

Trust: 0.7

db:CNVDid:CNVD-2025-29680

Trust: 0.6

db:VULMONid:CVE-2023-35756

Trust: 0.1

sources: ZDI: ZDI-23-1261 // CNVD: CNVD-2025-29680 // VULMON: CVE-2023-35756 // JVNDB: JVNDB-2023-028874 // NVD: CVE-2023-35756

REFERENCES

url:https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=sap10349

Trust: 2.5

url:https://www.zerodayinitiative.com/advisories/zdi-23-1261/

Trust: 1.9

url:https://nvd.nist.gov/vuln/detail/cve-2023-35756

Trust: 0.8

url:https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2023-35756

Trust: 0.6

sources: ZDI: ZDI-23-1261 // CNVD: CNVD-2025-29680 // VULMON: CVE-2023-35756 // JVNDB: JVNDB-2023-028874 // NVD: CVE-2023-35756

CREDITS

Dmitry "InfoSecDJ" Janushkevich of Trend Micro Zero Day Initiative

Trust: 0.7

sources: ZDI: ZDI-23-1261

SOURCES

db:ZDIid:ZDI-23-1261
db:CNVDid:CNVD-2025-29680
db:VULMONid:CVE-2023-35756
db:JVNDBid:JVNDB-2023-028874
db:NVDid:CVE-2023-35756

LAST UPDATE DATE

2025-12-19T22:28:22.859000+00:00


SOURCES UPDATE DATE

db:ZDIid:ZDI-23-1261date:2023-08-25T00:00:00
db:CNVDid:CNVD-2025-29680date:2025-12-02T00:00:00
db:JVNDBid:JVNDB-2023-028874date:2025-05-14T02:03:00
db:NVDid:CVE-2023-35756date:2025-05-13T13:55:36.973

SOURCES RELEASE DATE

db:ZDIid:ZDI-23-1261date:2023-08-25T00:00:00
db:CNVDid:CNVD-2025-29680date:2025-12-01T00:00:00
db:JVNDBid:JVNDB-2023-028874date:2025-05-14T00:00:00
db:NVDid:CVE-2023-35756date:2024-05-03T02:15:40.390