CVE-2026-5212 (GCVE-0-2026-5212)
Vulnerability from cvelistv5 – Published: 2026-03-31 20:15 – Updated: 2026-03-31 20:15
VLAI?
Title
D-Link DNS-1550-04 webdav_mgr.cgi Webdav_Upload_File stack-based overflow
Summary
A vulnerability has been found in D-Link DNS-120, DNR-202L, DNS-315L, DNS-320, DNS-320L, DNS-320LW, DNS-321, DNR-322L, DNS-323, DNS-325, DNS-326, DNS-327L, DNR-326, DNS-340L, DNS-343, DNS-345, DNS-726-4, DNS-1100-4, DNS-1200-05 and DNS-1550-04 up to 20260205. This issue affects the function Webdav_Upload_File of the file /cgi-bin/webdav_mgr.cgi. The manipulation of the argument f_file leads to stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit has been disclosed to the public and may be used.
Severity ?
Assigner
References
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Impacted products
| Vendor | Product | Version | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| D-Link | DNS-120 |
Affected:
20260205
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Credits
Ziyue Xie (VulDB User)
{
"containers": {
"cna": {
"affected": [
{
"product": "DNS-120",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNR-202L",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-315L",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-320",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-320L",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-320LW",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-321",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNR-322L",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-323",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-325",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-326",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-327L",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNR-326",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-340L",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-343",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-345",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-726-4",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-1100-4",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-1200-05",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
},
{
"product": "DNS-1550-04",
"vendor": "D-Link",
"versions": [
{
"status": "affected",
"version": "20260205"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "Ziyue Xie (VulDB User)"
}
],
"descriptions": [
{
"lang": "en",
"value": "A vulnerability has been found in D-Link DNS-120, DNR-202L, DNS-315L, DNS-320, DNS-320L, DNS-320LW, DNS-321, DNR-322L, DNS-323, DNS-325, DNS-326, DNS-327L, DNR-326, DNS-340L, DNS-343, DNS-345, DNS-726-4, DNS-1100-4, DNS-1200-05 and DNS-1550-04 up to 20260205. This issue affects the function Webdav_Upload_File of the file /cgi-bin/webdav_mgr.cgi. The manipulation of the argument f_file leads to stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit has been disclosed to the public and may be used."
}
],
"metrics": [
{
"cvssV4_0": {
"baseScore": 8.7,
"baseSeverity": "HIGH",
"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",
"version": "4.0"
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R",
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{
"cvssV2_0": {
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"version": "2.0"
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"problemTypes": [
{
"descriptions": [
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"lang": "en",
"type": "CWE"
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{
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"description": "Memory Corruption",
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"providerMetadata": {
"dateUpdated": "2026-03-31T20:15:13.429Z",
"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"shortName": "VulDB"
},
"references": [
{
"name": "VDB-354348 | D-Link DNS-1550-04 webdav_mgr.cgi Webdav_Upload_File stack-based overflow",
"tags": [
"vdb-entry",
"technical-description"
],
"url": "https://vuldb.com/vuln/354348"
},
{
"name": "VDB-354348 | CTI Indicators (IOB, IOC, IOA)",
"tags": [
"signature",
"permissions-required"
],
"url": "https://vuldb.com/vuln/354348/cti"
},
{
"name": "Submit #780435 | D-Link DNS-120/202L/315L/320/320L/320LW/321/322L/323/325/326/327L/326/340L/343/345/726-4/1100-4/1200-05/1550-04 up to 20260205 Stack-based Buffer Overflow",
"tags": [
"third-party-advisory"
],
"url": "https://vuldb.com/submit/780435"
},
{
"name": "Submit #780436 | D-Link DNS-120/202L/315L/320/320L/320LW/321/322L/323/325/326/327L/326/340L/343/345/726-4/1100-4/1200-05/1550-04 up to 20260205 Stack-based Buffer Overflow (Duplicate)",
"tags": [
"third-party-advisory"
],
"url": "https://vuldb.com/submit/780436"
},
{
"tags": [
"exploit"
],
"url": "https://github.com/wudipjq/my_vuln/blob/main/D-Link8/vuln_166/166.md"
},
{
"tags": [
"product"
],
"url": "https://www.dlink.com/"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-03-31T00:00:00.000Z",
"value": "Advisory disclosed"
},
{
"lang": "en",
"time": "2026-03-31T02:00:00.000Z",
"value": "VulDB entry created"
},
{
"lang": "en",
"time": "2026-03-31T12:34:50.000Z",
"value": "VulDB entry last update"
}
],
"title": "D-Link DNS-1550-04 webdav_mgr.cgi Webdav_Upload_File stack-based overflow"
}
},
"cveMetadata": {
"assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"assignerShortName": "VulDB",
"cveId": "CVE-2026-5212",
"datePublished": "2026-03-31T20:15:13.429Z",
"dateReserved": "2026-03-31T10:29:30.918Z",
"dateUpdated": "2026-03-31T20:15:13.429Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
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}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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