CVE-2025-45865

TOTOLINK A3002R v4.0.0-B20230531.1404 was discovered to contain a buffer overflow via the dnsaddr parameter in the formDhcpv6s interface.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/Jiangxiazhe/IOT_hack/blob/main/TOTOLINK/A3002R/6/overflow.md	Exploit
https://www.totolink.net/home/menu/detail/menu_listtpl/download/id/258/ids/36.html	Product

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:totolink:a3002r_firmware:4.0.0-b20230531.1404:*:*:*:*:*:*:*

cpe:2.3:h:totolink:a3002r:-:*:*:*:*:*:*:*

History

15 May 2025, 18:37

Type	Values Removed	Values Added
CPE		cpe:2.3:o:totolink:a3002r_firmware:4.0.0-b20230531.1404:::::::* cpe:2.3:h:totolink:a3002r:-:::::::*
References	~~() https://github.com/Jiangxiazhe/IOT_hack/blob/main/TOTOLINK/A3002R/6/overflow.md -~~	() https://github.com/Jiangxiazhe/IOT_hack/blob/main/TOTOLINK/A3002R/6/overflow.md - Exploit
References	~~() https://www.totolink.net/home/menu/detail/menu_listtpl/download/id/258/ids/36.html -~~	() https://www.totolink.net/home/menu/detail/menu_listtpl/download/id/258/ids/36.html - Product
First Time		Totolink Totolink a3002r Totolink a3002r Firmware

14 May 2025, 14:15

Type	Values Removed	Values Added
Summary		(es) Se descubrió que TOTOLINK A3002R v4.0.0-B20230531.1404 contiene un desbordamiento de búfer a través del parámetro dnsaddr en la interfaz formDhcpv6s.
CWE		CWE-120
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 9.8

13 May 2025, 19:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-05-13 19:15

Updated : 2025-05-15 18:37

NVD link : CVE-2025-45865

Mitre link : CVE-2025-45865

CVE.ORG link : CVE-2025-45865

JSON object : View

Products Affected

totolink

a3002r
a3002r_firmware

CWE

CWE-120

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

{"id": "CVE-2025-45865", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}, {"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}]}, "published": "2025-05-13T19:15:51.930", "references": [{"url": "https://github.com/Jiangxiazhe/IOT_hack/blob/main/TOTOLINK/A3002R/6/overflow.md", "tags": ["Exploit"], "source": "cve@mitre.org"}, {"url": "https://www.totolink.net/home/menu/detail/menu_listtpl/download/id/258/ids/36.html", "tags": ["Product"], "source": "cve@mitre.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-120"}]}, {"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "description": [{"lang": "en", "value": "CWE-120"}]}], "descriptions": [{"lang": "en", "value": "TOTOLINK A3002R v4.0.0-B20230531.1404 was discovered to contain a buffer overflow via the dnsaddr parameter in the formDhcpv6s interface."}, {"lang": "es", "value": "Se descubri\u00f3 que TOTOLINK A3002R v4.0.0-B20230531.1404 contiene un desbordamiento de b\u00fafer a trav\u00e9s del par\u00e1metro dnsaddr en la interfaz formDhcpv6s."}], "lastModified": "2025-05-15T18:37:31.917", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:totolink:a3002r_firmware:4.0.0-b20230531.1404:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E86B079B-AD4D-46EF-9E45-31EE15729291"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:totolink:a3002r:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "2CBBBC48-8918-4D59-8059-285404AE7716"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "cve@mitre.org"}