Details of VAR-202603-5510

ID

VAR-202603-5510

CVE

CVE-2026-5211

TITLE

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

Trust: 0.8

sources: JVNDB: JVNDB-2026-009896

DESCRIPTION

A flaw 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 vulnerability affects the function UPnP_AV_Server_Path_Del of the file /cgi-bin/app_mgr.cgi. Executing a manipulation of the argument f_dir can lead to stack-based buffer overflow. The attack can be executed remotely. The exploit has been published and may be used. D-Link of 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 , DNS-1550-04 (( 2026 Year 2 Moon 5 A vulnerability has been discovered in the version up to [date]. This vulnerability is... The exploit is publicly available and could be misused.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-2026-5211 // JVNDB: JVNDB-2026-009896

AFFECTED PRODUCTS

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

sources: JVNDB: JVNDB-2026-009896 // NVD: CVE-2026-5211

CVSS

SEVERITY

CVSSV2

CVSSV3

cna@vuldb.com:	CVE-2026-5211
value:	HIGH
Trust: 1.0
OTHER:	JVNDB-2026-009896
value:	HIGH
Trust: 0.8

cna@vuldb.com:	CVE-2026-5211
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-2026-009896
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-2026-5211
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
OTHER:	JVNDB-2026-009896
baseSeverity:	HIGH
baseScore:	8.8
vectorString:	CVSS:3.0/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:	NONE
impactScore:	NONE
version:	3.0
Trust: 0.8

sources: JVNDB: JVNDB-2026-009896 // NVD: CVE-2026-5211

PROBLEMTYPE DATA

problemtype:	CWE-121	Trust: 1.0
problemtype:	CWE-787	Trust: 1.0
problemtype:	CWE-119	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-2026-009896 // NVD: CVE-2026-5211

PATCH

title:

//vuldb.com/vuln/354347

url:

https://github.com/wudipjq/my_vuln/blob/main/D-Link8/vuln_165/165.md

Trust: 0.8

sources: JVNDB: JVNDB-2026-009896

EXTERNAL IDS

db:	NVD	id:	CVE-2026-5211	Trust: 2.6
db:	JVNDB	id:	JVNDB-2026-009896	Trust: 0.8

sources: JVNDB: JVNDB-2026-009896 // NVD: CVE-2026-5211

REFERENCES

url:	https://www.dlink.com/	Trust: 1.8
url:	https://vuldb.com/submit/780434	Trust: 1.0
url:	https://github.com/wudipjq/my_vuln/blob/main/d-link8/vuln_165/165.md	Trust: 1.0
url:	https://vuldb.com/vuln/354347/cti	Trust: 1.0
url:	https://vuldb.com/vuln/354347	Trust: 1.0
url:	https://nvd.nist.gov/vuln/detail/cve-2026-5211	Trust: 0.8

sources: JVNDB: JVNDB-2026-009896 // NVD: CVE-2026-5211

SOURCES

db:	JVNDB	id:	JVNDB-2026-009896
db:	NVD	id:	CVE-2026-5211

LAST UPDATE DATE

2026-04-07T23:17:02.259000+00:00

SOURCES UPDATE DATE

db:	JVNDB	id:	JVNDB-2026-009896	date:	2026-04-06T02:55:00
db:	NVD	id:	CVE-2026-5211	date:	2026-04-02T17:14:45.093

SOURCES RELEASE DATE

db:	JVNDB	id:	JVNDB-2026-009896	date:	2026-04-06T00:00:00
db:	NVD	id:	CVE-2026-5211	date:	2026-03-31T20:16:29.873