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2026-02-05
8

D-Link DNS-120D-Link DNS-1550-04 local_backup_mgr.cgi Local_Backup_Info stack-based overflow

Risk 61
Severity
7.4
EPSS
0.05%
Buffer Overflow
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

A weakness has been identified 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. Affected by this issue is the function LocalBackupInfo of the file /cgi-bin/localbackupmgr.cgi. This manipulation of the argument fidx causes stack-based buffer overflow. The attack can be initiated remotely. The exploit has been made available to the public and could be used for attacks.

First published (updated )
CVE-2026-4211

D-Link DNS-120D-Link DNS-1550-04 download_mgr.cgi Downloads_Schedule_Info stack-based overflow

Risk 61
Severity
7.4
EPSS
0.05%
Buffer Overflow
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

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 DownloadsScheduleInfo of the file /cgi-bin/downloadmgr.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.

First published (updated )
CVE-2026-4212

D-Link DNS-120D-Link DNS-1550-04 gui_mgr.cgi cgi_myfavorite_verify stack-based overflow

Risk 61
Severity
7.4
EPSS
0.07%
Buffer Overflow
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

A vulnerability was 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 vulnerability affects the function cgimyfavoritedeluser/cgimyfavoriteverify of the file /cgi-bin/guimgr.cgi. Performing a manipulation results in stack-based buffer overflow. The attack may be initiated remotely. The exploit is now public and may be used.

First published (updated )
CVE-2026-4213

D-Link DNS-120D-Link DNS-1550-04 app_mgr.cgi UPnP_AV_Server_Path_Setting stack-based overflow

Risk 61
Severity
7.4
EPSS
0.05%
Buffer Overflow
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

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 issue affects the function UPnPAVServerPathSetting of the file /cgi-bin/appmgr.cgi. Executing a manipulation can lead to stack-based buffer overflow. The attack may be launched remotely. The exploit has been published and may be used.

First published (updated )
CVE-2026-4214

D-Link DNS-120D-Link DNS-1550-04 app_mgr.cgi UPnP_AV_Server_Path_Del stack-based overflow

Risk 56
Severity
7.4
EPSS
0.03%
Buffer Overflow
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

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 UPnPAVServerPathDel of the file /cgi-bin/appmgr.cgi. Executing a manipulation of the argument fdir can lead to stack-based buffer overflow. The attack can be executed remotely. The exploit has been published and may be used.

First published (updated )
CVE-2026-5211

D-Link DNS-120D-Link DNS-1550-04 account_mgr.cgi cgi_adduser_to_session stack-based overflow

Risk 56
Severity
7.4
EPSS
0.04%
Buffer Overflow
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

A vulnerability was determined 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. The affected element is the function cgiaddusertosession of the file /cgi-bin/accountmgr.cgi. This manipulation of the argument readlist causes stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been publicly disclosed and may be utilized.

First published (updated )
CVE-2026-5213

D-Link DNS-120D-Link DNS-1550-04 webdav_mgr.cgi Webdav_Upload_File stack-based overflow

Risk 56
Severity
7.4
EPSS
0.10%
Buffer Overflow
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

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 WebdavUploadFile of the file /cgi-bin/webdavmgr.cgi. The manipulation of the argument ffile 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.

First published (updated )
CVE-2026-5212

D-Link DNS-120D-Link DNS-1550-04 account_mgr.cgi cgi_addgroup_get_group_quota_minsize stack-based overflow

Risk 56
Severity
7.4
EPSS
0.04%
Buffer Overflow
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

A vulnerability was 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. Impacted is the function cgiaddgroupgetgroupquotaminsize of the file /cgi-bin/accountmgr.cgi. The manipulation of the argument Name results in stack-based buffer overflow. The attack may be performed from remote. The exploit has been made public and could be used.

First published (updated )
CVE-2026-5214

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