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ID

VAR-202310-0077


CVE

CVE-2023-44418


TITLE

D-Link Systems, Inc.  of  dir-x3260  Out-of-bounds write vulnerability in firmware

Trust: 0.8

sources: JVNDB: JVNDB-2023-028870

DESCRIPTION

D-Link DIR-X3260 Prog.cgi Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DIR-X3260 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the prog.cgi binary, which handles HNAP requests made to the lighttpd webserver. The issue results from the lack of proper validation of the length an user-supplied data prior to copying it to a fixed-length heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-20727. D-Link Systems, Inc. of dir-x3260 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 DIR-X3260 is a mainstream router from D-Link that supports Wi-Fi 6

Trust: 2.79

sources: NVD: CVE-2023-44418 // JVNDB: JVNDB-2023-028870 // ZDI: ZDI-23-1516 // CNVD: CNVD-2025-26818

IOT TAXONOMY

category:['Network device']sub_category: -

Trust: 0.6

sources: CNVD: CNVD-2025-26818

AFFECTED PRODUCTS

vendor:d linkmodel:dir-x3260scope: - version: -

Trust: 2.1

vendor:dlinkmodel:dir-x3260scope:ltversion:1.04b01

Trust: 1.0

vendor:d linkmodel:dir-x3260scope:eqversion:dir-x3260 firmware 1.04b01

Trust: 0.8

vendor:d linkmodel:dir-x3260scope:eqversion: -

Trust: 0.8

sources: ZDI: ZDI-23-1516 // CNVD: CNVD-2025-26818 // JVNDB: JVNDB-2023-028870 // NVD: CVE-2023-44418

CVSS

SEVERITY

CVSSV2

CVSSV3

zdi-disclosures@trendmicro.com: CVE-2023-44418
value: HIGH

Trust: 1.0

nvd@nist.gov: CVE-2023-44418
value: HIGH

Trust: 1.0

NVD: CVE-2023-44418
value: HIGH

Trust: 0.8

ZDI: CVE-2023-44418
value: HIGH

Trust: 0.7

CNVD: CNVD-2025-26818
value: HIGH

Trust: 0.6

CNVD: CNVD-2025-26818
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-2023-44418
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-2023-44418
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-2023-44418
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-23-1516 // CNVD: CNVD-2025-26818 // JVNDB: JVNDB-2023-028870 // NVD: CVE-2023-44418 // NVD: CVE-2023-44418

PROBLEMTYPE DATA

problemtype:CWE-787

Trust: 1.0

problemtype:CWE-122

Trust: 1.0

problemtype:Heap-based buffer overflow (CWE-122) [ others ]

Trust: 0.8

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

Trust: 0.8

sources: JVNDB: JVNDB-2023-028870 // NVD: CVE-2023-44418

PATCH

title:Patch for D-Link DIR-X3260 buffer overflow vulnerabilityurl:https://www.cnvd.org.cn/patchInfo/show/748916

Trust: 0.6

sources: CNVD: CNVD-2025-26818

EXTERNAL IDS

db:NVDid:CVE-2023-44418

Trust: 3.9

db:ZDIid:ZDI-23-1516

Trust: 3.1

db:JVNDBid:JVNDB-2023-028870

Trust: 0.8

db:ZDI_CANid:ZDI-CAN-20727

Trust: 0.7

db:CNVDid:CNVD-2025-26818

Trust: 0.6

sources: ZDI: ZDI-23-1516 // CNVD: CNVD-2025-26818 // JVNDB: JVNDB-2023-028870 // NVD: CVE-2023-44418

REFERENCES

url:https://www.zerodayinitiative.com/advisories/zdi-23-1516/

Trust: 2.4

url:https://nvd.nist.gov/vuln/detail/cve-2023-44418

Trust: 0.8

sources: CNVD: CNVD-2025-26818 // JVNDB: JVNDB-2023-028870 // NVD: CVE-2023-44418

CREDITS

Nicholas Zubrisky

Trust: 0.7

sources: ZDI: ZDI-23-1516

SOURCES

db:ZDIid:ZDI-23-1516
db:CNVDid:CNVD-2025-26818
db:JVNDBid:JVNDB-2023-028870
db:NVDid:CVE-2023-44418

LAST UPDATE DATE

2025-11-19T23:27:45.258000+00:00


SOURCES UPDATE DATE

db:ZDIid:ZDI-23-1516date:2023-10-04T00:00:00
db:CNVDid:CNVD-2025-26818date:2025-11-04T00:00:00
db:JVNDBid:JVNDB-2023-028870date:2025-05-14T00:49:00
db:NVDid:CVE-2023-44418date:2025-05-13T14:03:54.930

SOURCES RELEASE DATE

db:ZDIid:ZDI-23-1516date:2023-10-04T00:00:00
db:CNVDid:CNVD-2025-26818date:2025-11-04T00:00:00
db:JVNDBid:JVNDB-2023-028870date:2025-05-14T00:00:00
db:NVDid:CVE-2023-44418date:2024-05-03T03:15:55.710