CVE-2025-11339

A vulnerability has been found in D-Link DI-7100G C1 up to 20250928. This issue affects the function sub_4BD4F8 of the file /webchat/hi_block.asp of the component jhttpd. The manipulation of the argument popupId leads to buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.

CVSS v3 8.8 HIGH
CVSS v2.0 9.0 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

9.0^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:S/C:C/I:C/A:C

Exploitability : 8.0 / Impact : 10.0

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://vuldb.com/?ctiid.327222	Permissions Required VDB Entry
https://vuldb.com/?id.327222	Third Party Advisory VDB Entry
https://vuldb.com/?submit.664635	Third Party Advisory VDB Entry
https://www.dlink.com/	Product
https://www.yuque.com/jh0ng/vmpda6/zr11zfssl8h74bn3	Permissions Required
https://www.yuque.com/jh0ng/vmpda6/zr11zfssl8h74bn3#Wjajr	Permissions Required

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:dlink:di-7100g_c1_firmware:2025-09-28:*:*:*:*:*:*:*

cpe:2.3:h:dlink:di-7100g_c1:-:*:*:*:*:*:*:*

History

09 Oct 2026, 10:10

Type	Values Removed	Values Added
Summary		(es) Una vulnerabilidad ha sido encontrada en D-Link DI-7100G C1 hasta 20250928. Este problema afecta a la función sub_4BD4F8 del archivo /webchat/hi_block.asp del componente jhttpd. La manipulación del argumento popupId conduce a desbordamiento de búfer. El ataque puede ser iniciado de forma remota. El exploit ha sido revelado al público y puede ser utilizado.

Information

Published : 2025-10-06 17:16

Updated : 2026-10-09 10:10

NVD link : CVE-2025-11339

Mitre link : CVE-2025-11339

CVE.ORG link : CVE-2025-11339

JSON object : View

Products Affected

dlink

di-7100g_c1_firmware
di-7100g_c1

CWE

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

{"id": "CVE-2025-11339", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-11339", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2025-10-06T17:00:37.173521Z"}}], "cvssMetricV2": [{"type": "Secondary", "source": "cna@vuldb.com", "cvssData": {"version": "2.0", "baseScore": 9.0, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:S/C:C/I:C/A:C", "authentication": "SINGLE", "integrityImpact": "COMPLETE", "accessComplexity": "LOW", "availabilityImpact": "COMPLETE", "confidentialityImpact": "COMPLETE"}, "acInsufInfo": false, "impactScore": 10.0, "baseSeverity": "HIGH", "obtainAllPrivilege": false, "exploitabilityScore": 8.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Secondary", "source": "cna@vuldb.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.8}], "cvssMetricV40": [{"type": "Secondary", "source": "cna@vuldb.com", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 7.4, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "HIGH", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "exploitMaturity": "PROOF_OF_CONCEPT", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "affected": [{"source": "cna@vuldb.com", "affectedData": [{"vendor": "D-Link", "modules": ["jhttpd"], "product": "DI-7100G C1", "versions": [{"status": "affected", "version": "20250928"}]}]}], "published": "2025-10-06T17:16:04.683", "references": [{"url": "https://vuldb.com/?ctiid.327222", "tags": ["Permissions Required", "VDB Entry"], "source": "cna@vuldb.com"}, {"url": "https://vuldb.com/?id.327222", "tags": ["Third Party Advisory", "VDB Entry"], "source": "cna@vuldb.com"}, {"url": "https://vuldb.com/?submit.664635", "tags": ["Third Party Advisory", "VDB Entry"], "source": "cna@vuldb.com"}, {"url": "https://www.dlink.com/", "tags": ["Product"], "source": "cna@vuldb.com"}, {"url": "https://www.yuque.com/jh0ng/vmpda6/zr11zfssl8h74bn3", "tags": ["Permissions Required"], "source": "cna@vuldb.com"}, {"url": "https://www.yuque.com/jh0ng/vmpda6/zr11zfssl8h74bn3#Wjajr", "tags": ["Permissions Required"], "source": "cna@vuldb.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "cna@vuldb.com", "description": [{"lang": "en", "value": "CWE-119"}, {"lang": "en", "value": "CWE-120"}]}], "descriptions": [{"lang": "en", "value": "A vulnerability has been found in D-Link DI-7100G C1 up to 20250928. This issue affects the function sub_4BD4F8 of the file /webchat/hi_block.asp of the component jhttpd. The manipulation of the argument popupId leads to buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used."}, {"lang": "es", "value": "Una vulnerabilidad ha sido encontrada en D-Link DI-7100G C1 hasta 20250928. Este problema afecta a la funci\u00f3n sub_4BD4F8 del archivo /webchat/hi_block.asp del componente jhttpd. La manipulaci\u00f3n del argumento popupId conduce a desbordamiento de b\u00fafer. El ataque puede ser iniciado de forma remota. El exploit ha sido revelado al p\u00fablico y puede ser utilizado."}], "lastModified": "2026-10-09T10:10:00.193", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:dlink:di-7100g_c1_firmware:2025-09-28:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7A967144-1055-4FC2-97F7-8E486F6D6D53"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:dlink:di-7100g_c1:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "B661C392-F07F-4BF5-B559-B00693C63E94"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "cna@vuldb.com"}