Refine your search
2 vulnerabilities found for DSL-2740R by D-Link
CVE-2026-7027 (GCVE-0-2026-7027)
Vulnerability from cvelistv5
Published
2026-04-26 08:15
Modified
2026-04-27 13:48
Severity ?
VLAI Severity ?
EPSS score ?
Summary
A vulnerability was identified in D-Link DSL-2740R EU_01.15. Impacted is an unknown function of the component Wireless Setup Section. Such manipulation of the argument Wireless Network Name leads to cross site scripting. The attack can be executed remotely. The exploit is publicly available and might be used.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-7027",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-04-27T13:48:39.696145Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-04-27T13:48:51.727Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"modules": [
"Wireless Setup Section"
],
"product": "DSL-2740R",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "EU_01.15"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "Havook (VulDB User)"
},
{
"lang": "en",
"type": "coordinator",
"value": "VulDB Vulnerability Moderation Team"
}
],
"descriptions": [
{
"lang": "en",
"value": "A vulnerability was identified in D-Link DSL-2740R EU_01.15. Impacted is an unknown function of the component Wireless Setup Section. Such manipulation of the argument Wireless Network Name leads to cross site scripting. The attack can be executed remotely. The exploit is publicly available and might be used."
}
],
"metrics": [
{
"cvssV4_0": {
"baseScore": 4.8,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P",
"version": "4.0"
}
},
{
"cvssV3_1": {
"baseScore": 2.4,
"baseSeverity": "LOW",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R",
"version": "3.1"
}
},
{
"cvssV3_0": {
"baseScore": 2.4,
"baseSeverity": "LOW",
"vectorString": "CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R",
"version": "3.0"
}
},
{
"cvssV2_0": {
"baseScore": 3.3,
"vectorString": "AV:N/AC:L/Au:M/C:N/I:P/A:N/E:POC/RL:ND/RC:UR",
"version": "2.0"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-79",
"description": "Cross Site Scripting",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-94",
"description": "Code Injection",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-04-26T08:15:13.767Z",
"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"shortName": "VulDB"
},
"references": [
{
"name": "VDB-359607 | D-Link DSL-2740R Wireless Setup Section cross site scripting",
"tags": [
"vdb-entry",
"technical-description"
],
"url": "https://vuldb.com/vuln/359607"
},
{
"name": "VDB-359607 | CTI Indicators (IOB, IOC, TTP, IOA)",
"tags": [
"signature",
"permissions-required"
],
"url": "https://vuldb.com/vuln/359607/cti"
},
{
"name": "Submit #797896 | D-Link DSL-2740R EU_01.15 Cross Site Scripting",
"tags": [
"third-party-advisory"
],
"url": "https://vuldb.com/submit/797896"
},
{
"tags": [
"product"
],
"url": "https://www.dlink.com/"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-04-25T00:00:00.000Z",
"value": "Advisory disclosed"
},
{
"lang": "en",
"time": "2026-04-25T02:00:00.000Z",
"value": "VulDB entry created"
},
{
"lang": "en",
"time": "2026-04-25T16:20:26.000Z",
"value": "VulDB entry last update"
}
],
"title": "D-Link DSL-2740R Wireless Setup Section cross site scripting"
}
},
"cveMetadata": {
"assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"assignerShortName": "VulDB",
"cveId": "CVE-2026-7027",
"datePublished": "2026-04-26T08:15:13.767Z",
"dateReserved": "2026-04-25T14:15:21.357Z",
"dateUpdated": "2026-04-27T13:48:51.727Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-0625 (GCVE-0-2026-0625)
Vulnerability from cvelistv5
Published
2026-01-05 21:14
Modified
2026-05-25 23:41
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-306 - Missing Authentication for Critical Function
Summary
Multiple D-Link DSL/DIR/DNS devices contain an authentication bypass and improper access control vulnerability in the dnscfg.cgi endpoint that allows an unauthenticated attacker to access DNS configuration functionality. By directly requesting this endpoint, an attacker can modify the device’s DNS settings without valid credentials, enabling DNS hijacking (“DNSChanger”) attacks that redirect user traffic to attacker-controlled infrastructure. In 2019, D-Link reported that this behavior was leveraged by the "GhostDNS" malware ecosystem targeting consumer and carrier routers. All impacted products were subsequently designated end-of-life/end-of-service, and no longer receive security updates. Exploitation evidence was observed by the Shadowserver Foundation on 2025-11-27 (UTC).
References
| URL | Tags | |
|---|---|---|
|
|
||
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| D-Link | DSL-2640B |
Version: 0 |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-0625",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-01-20T17:34:19.015227Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-01-20T17:34:41.776Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unknown",
"product": "DSL-2640B",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "0"
}
]
},
{
"defaultStatus": "unknown",
"product": "DSL-2740R",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "0"
}
]
},
{
"defaultStatus": "unknown",
"product": "DSL-2780B",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "0"
}
]
},
{
"defaultStatus": "unknown",
"product": "DSL-526B",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "0"
}
]
},
{
"defaultStatus": "unknown",
"product": "DSL-2640T",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "0"
}
]
},
{
"defaultStatus": "unknown",
"product": "DSL-500",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "0"
}
]
},
{
"defaultStatus": "unknown",
"product": "DSL-500G",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "0"
}
]
},
{
"defaultStatus": "unknown",
"product": "DSL-502G",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "0"
}
]
},
{
"defaultStatus": "unknown",
"product": "DIR-905L",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "0"
}
]
},
{
"defaultStatus": "unknown",
"product": "DIR-600",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "0"
}
]
},
{
"defaultStatus": "unknown",
"product": "DIR-608",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "0"
}
]
},
{
"defaultStatus": "unknown",
"product": "DIR-610",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "0"
}
]
},
{
"defaultStatus": "unknown",
"product": "DIR-611",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "0"
}
]
},
{
"defaultStatus": "unknown",
"product": "DIR-615",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "0"
}
]
},
{
"defaultStatus": "unknown",
"product": "DNS-320",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "0"
}
]
},
{
"defaultStatus": "unknown",
"product": "DNS-325",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "0"
}
]
},
{
"defaultStatus": "unknown",
"product": "DNS-345",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "0"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:dlink:dsl-2640b_firmware:eu_4.01b:*:*:*:*:*:*:*",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:dlink:dsl-2740r_firmware:uk_1.01:*:*:*:*:*:*:*",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:dlink:dsl-2740r:-:*:*:*:*:*:*:*",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:h:dlink:dsl-2640t:-:*:*:*:*:*:*:*",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:dlink:dsl-2640t_firmware:-:*:*:*:*:*:*:*",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "The Shadowserver Foundation"
},
{
"lang": "en",
"type": "coordinator",
"value": "VulnCheck"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Multiple D-Link DSL/DIR/DNS devices contain an authentication bypass and improper access control vulnerability in the dnscfg.cgi endpoint that allows an unauthenticated attacker to access DNS configuration functionality. By directly requesting this endpoint, an attacker can modify the device\u2019s DNS settings without valid credentials, enabling DNS hijacking (\u201cDNSChanger\u201d) attacks that redirect user traffic to attacker-controlled infrastructure. In 2019, D-Link reported that this behavior was leveraged by the \"GhostDNS\" malware ecosystem targeting consumer and carrier routers. All impacted products were subsequently designated end-of-life/end-of-service, and no longer receive security updates.\u0026nbsp;Exploitation evidence was observed by the Shadowserver Foundation on 2025-11-27 (UTC).\u003cbr\u003e"
}
],
"value": "Multiple D-Link DSL/DIR/DNS devices contain an authentication bypass and improper access control vulnerability in the dnscfg.cgi endpoint that allows an unauthenticated attacker to access DNS configuration functionality. By directly requesting this endpoint, an attacker can modify the device\u2019s DNS settings without valid credentials, enabling DNS hijacking (\u201cDNSChanger\u201d) attacks that redirect user traffic to attacker-controlled infrastructure. In 2019, D-Link reported that this behavior was leveraged by the \"GhostDNS\" malware ecosystem targeting consumer and carrier routers. All impacted products were subsequently designated end-of-life/end-of-service, and no longer receive security updates.\u00a0Exploitation evidence was observed by the Shadowserver Foundation on 2025-11-27 (UTC)."
}
],
"metrics": [
{
"cvssV4_0": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 9.3,
"baseSeverity": "CRITICAL",
"privilegesRequired": "NONE",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "HIGH",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-306",
"description": "CWE-306 Missing Authentication for Critical Function",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-05-25T23:41:34.467Z",
"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"shortName": "VulnCheck"
},
"references": [
{
"tags": [
"vendor-advisory",
"mitigation"
],
"url": "https://supportannouncement.us.dlink.com/security/publication.aspx?name=SAP10488"
},
{
"tags": [
"vendor-advisory"
],
"url": "https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10068"
},
{
"tags": [
"vendor-advisory"
],
"url": "https://supportannouncement.us.dlink.com/security/publication.aspx?name=SAP10118"
},
{
"tags": [
"third-party-advisory"
],
"url": "https://www.vulncheck.com/advisories/dlink-dsl-command-injection-via-dns-configuration-endpoint"
}
],
"solutions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "D-Link Systems, Inc. recommends retiring these products and replacing them with products that receive firmware updates.\u003cbr\u003e"
}
],
"value": "D-Link Systems, Inc. recommends retiring these products and replacing them with products that receive firmware updates."
}
],
"source": {
"discovery": "UNKNOWN"
},
"tags": [
"unsupported-when-assigned",
"x_known-exploited-vulnerability"
],
"title": "D-Link DSL/DIR/DNS Authentication Bypass via DNS Configuration Endpoint",
"x_generator": {
"engine": "vulncheck"
}
}
},
"cveMetadata": {
"assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"assignerShortName": "VulnCheck",
"cveId": "CVE-2026-0625",
"datePublished": "2026-01-05T21:14:48.992Z",
"dateReserved": "2026-01-05T20:59:29.705Z",
"dateUpdated": "2026-05-25T23:41:34.467Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}