Details of VAR-202603-1779

ID

VAR-202603-1779

CVE

CVE-2026-4212

TITLE

D-Link Corporation of dnr-202l Multiple vulnerabilities in multiple products, including firmware

Trust: 0.8

sources: JVNDB: JVNDB-2026-008216

DESCRIPTION

A security vulnerability has been detected 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 affects the function Downloads_Schedule_Info of the file /cgi-bin/download_mgr.cgi. Such manipulation leads to stack-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed publicly and may be used. Exploits of this vulnerability are publicly available and may be exploited.All information handled by the software may be leaked to the outside. All information handled by the software may be rewritten. Furthermore, the software may stop working completely. Furthermore, attacks that exploit this vulnerability will not affect other software

Trust: 1.62

sources: NVD: CVE-2026-4212 // JVNDB: JVNDB-2026-008216

AFFECTED PRODUCTS

vendor:	dlink	model:	dns-327l	scope:	lte	version:	2026-02-05	Trust: 1.0
vendor:	dlink	model:	dns-1100-4	scope:	lte	version:	2026-02-05	Trust: 1.0
vendor:	dlink	model:	dns-343	scope:	lte	version:	2026-02-05	Trust: 1.0
vendor:	dlink	model:	dns-345	scope:	lte	version:	2026-02-05	Trust: 1.0
vendor:	dlink	model:	dnr-326	scope:	lte	version:	2026-02-05	Trust: 1.0
vendor:	dlink	model:	dns-1550-04	scope:	lte	version:	2026-02-05	Trust: 1.0
vendor:	dlink	model:	dns-321	scope:	lte	version:	2026-02-05	Trust: 1.0
vendor:	dlink	model:	dns-325	scope:	lte	version:	2026-02-05	Trust: 1.0
vendor:	dlink	model:	dns-120	scope:	lte	version:	2026-02-05	Trust: 1.0
vendor:	dlink	model:	dns-315l	scope:	lte	version:	2026-02-05	Trust: 1.0
vendor:	dlink	model:	dns-323	scope:	lte	version:	2026-02-05	Trust: 1.0
vendor:	dlink	model:	dns-326	scope:	lte	version:	2026-02-05	Trust: 1.0
vendor:	dlink	model:	dns-340l	scope:	lte	version:	2026-02-05	Trust: 1.0
vendor:	dlink	model:	dns-320l	scope:	lte	version:	2026-02-05	Trust: 1.0
vendor:	dlink	model:	dns-320lw	scope:	lte	version:	2026-02-05	Trust: 1.0
vendor:	dlink	model:	dns-726-4	scope:	lte	version:	2026-02-05	Trust: 1.0
vendor:	dlink	model:	dnr-202l	scope:	lte	version:	2026-02-05	Trust: 1.0
vendor:	dlink	model:	dns-322l	scope:	lte	version:	2026-02-05	Trust: 1.0
vendor:	dlink	model:	dns-1200-05	scope:	lte	version:	2026-02-05	Trust: 1.0
vendor:	dlink	model:	dns-320	scope:	lte	version:	2026-02-05	Trust: 1.0
vendor:	d link	model:	dns-315l	scope:	-	version:	-	Trust: 0.8
vendor:	d link	model:	d-link dnr-326	scope:	-	version:	-	Trust: 0.8
vendor:	d link	model:	dnr-202l	scope:	-	version:	-	Trust: 0.8
vendor:	d link	model:	d-link dns-322l	scope:	-	version:	-	Trust: 0.8
vendor:	d link	model:	d-link dns-345	scope:	-	version:	-	Trust: 0.8
vendor:	d link	model:	d-link dns-320lw	scope:	-	version:	-	Trust: 0.8
vendor:	d link	model:	dns-326	scope:	-	version:	-	Trust: 0.8
vendor:	d link	model:	dns-343	scope:	-	version:	-	Trust: 0.8
vendor:	d link	model:	dns-321	scope:	-	version:	-	Trust: 0.8
vendor:	d link	model:	d-link dns-327l	scope:	-	version:	-	Trust: 0.8
vendor:	d link	model:	dns-1100-4	scope:	-	version:	-	Trust: 0.8
vendor:	d link	model:	dns-340l	scope:	-	version:	-	Trust: 0.8
vendor:	d link	model:	d-link dns-320l	scope:	-	version:	-	Trust: 0.8
vendor:	d link	model:	dns-323	scope:	-	version:	-	Trust: 0.8
vendor:	d link	model:	dns-120	scope:	-	version:	-	Trust: 0.8
vendor:	d link	model:	dns-1200-05	scope:	-	version:	-	Trust: 0.8
vendor:	d link	model:	dns-726-4	scope:	-	version:	-	Trust: 0.8
vendor:	d link	model:	d-link dns-320	scope:	-	version:	-	Trust: 0.8
vendor:	d link	model:	dns-1550-04	scope:	-	version:	-	Trust: 0.8
vendor:	d link	model:	d-link dns-325	scope:	-	version:	-	Trust: 0.8

sources: JVNDB: JVNDB-2026-008216 // NVD: CVE-2026-4212

CVSS

SEVERITY

CVSSV2

CVSSV3

cna@vuldb.com:	CVE-2026-4212
value:	HIGH
Trust: 1.0
nvd@nist.gov:	CVE-2026-4212
value:	CRITICAL
Trust: 1.0
OTHER:	JVNDB-2026-008216
value:	CRITICAL
Trust: 0.8

cna@vuldb.com:	CVE-2026-4212
severity:	HIGH
baseScore:	9.0
vectorString:	AV:N/AC:L/AU:S/C:C/I:C/A:C
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	SINGLE
confidentialityImpact:	COMPLETE
integrityImpact:	COMPLETE
availabilityImpact:	COMPLETE
exploitabilityScore:	8.0
impactScore:	10.0
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 1.0
OTHER:	JVNDB-2026-008216
severity:	HIGH
baseScore:	9.0
vectorString:	AV:N/AC:L/AU:S/C:C/I:C/A:C
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	SINGLE
confidentialityImpact:	COMPLETE
integrityImpact:	COMPLETE
availabilityImpact:	COMPLETE
exploitabilityScore:	NONE
impactScore:	NONE
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.8

cna@vuldb.com:	CVE-2026-4212
baseSeverity:	HIGH
baseScore:	8.8
vectorString:	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	LOW
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	HIGH
integrityImpact:	HIGH
availabilityImpact:	HIGH
exploitabilityScore:	2.8
impactScore:	5.9
version:	3.1
Trust: 1.0
nvd@nist.gov:	CVE-2026-4212
baseSeverity:	CRITICAL
baseScore:	9.8
vectorString:	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	HIGH
integrityImpact:	HIGH
availabilityImpact:	HIGH
exploitabilityScore:	3.9
impactScore:	5.9
version:	3.1
Trust: 1.0
NVD:	JVNDB-2026-008216
baseSeverity:	CRITICAL
baseScore:	9.8
vectorString:	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	HIGH
integrityImpact:	HIGH
availabilityImpact:	HIGH
exploitabilityScore:	NONE
impactScore:	NONE
version:	3.0
Trust: 0.8

sources: JVNDB: JVNDB-2026-008216 // NVD: CVE-2026-4212 // NVD: CVE-2026-4212

PROBLEMTYPE DATA

problemtype:	CWE-121	Trust: 1.0
problemtype:	CWE-119	Trust: 1.0
problemtype:	CWE-787	Trust: 1.0
problemtype:	Buffer error (CWE-119) [ others ]	Trust: 0.8
problemtype:	Stack-based buffer overflow (CWE-121) [ others ]	Trust: 0.8
problemtype:	Out-of-bounds writing (CWE-787) [NVD evaluation ]	Trust: 0.8

sources: JVNDB: JVNDB-2026-008216 // NVD: CVE-2026-4212

PATCH

title:

Submit #770442

url:

https://github.com/wudipjq/my_vuln/blob/main/D-Link8/vuln_161/161.md

Trust: 0.8

sources: JVNDB: JVNDB-2026-008216

EXTERNAL IDS

db:	NVD	id:	CVE-2026-4212	Trust: 2.6
db:	VULDB	id:	351123	Trust: 1.0
db:	JVNDB	id:	JVNDB-2026-008216	Trust: 0.8

sources: JVNDB: JVNDB-2026-008216 // NVD: CVE-2026-4212

REFERENCES

url:	https://www.dlink.com/	Trust: 1.8
url:	https://github.com/wudipjq/my_vuln/blob/main/d-link8/vuln_161/161.md	Trust: 1.0
url:	https://vuldb.com/?ctiid.351123	Trust: 1.0
url:	https://vuldb.com/?id.351123	Trust: 1.0
url:	https://vuldb.com/?submit.770442	Trust: 1.0
url:	https://nvd.nist.gov/vuln/detail/cve-2026-4212	Trust: 0.8

sources: JVNDB: JVNDB-2026-008216 // NVD: CVE-2026-4212

SOURCES

db:	JVNDB	id:	JVNDB-2026-008216
db:	NVD	id:	CVE-2026-4212

LAST UPDATE DATE

2026-03-25T23:00:44.641000+00:00

SOURCES UPDATE DATE

db:	JVNDB	id:	JVNDB-2026-008216	date:	2026-03-24T05:37:00
db:	NVD	id:	CVE-2026-4212	date:	2026-03-19T14:29:12.933

SOURCES RELEASE DATE

db:	JVNDB	id:	JVNDB-2026-008216	date:	2026-03-24T00:00:00
db:	NVD	id:	CVE-2026-4212	date:	2026-03-16T14:20:07.663