Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2026-4194— D-Link DNS-1550-04 system_mgr.cgi cgi_set_wto access control

CVSS 7.3 · High EPSS 1.24% · P67

Possible ATT&CK Techniques 1AI

T1190 · Exploit Public-Facing Application
Get alerts for future matching vulnerabilitiesLog in to subscribe

I. Basic Information for CVE-2026-4194

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
D-Link DNS-1550-04 system_mgr.cgi cgi_set_wto access control
Source: CVE Program / CVE List V5
Vulnerability Description
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. The impacted element is the function cgi_set_wto of the file /cgi-bin/system_mgr.cgi. Performing a manipulation results in improper access controls. Remote exploitation of the attack is possible. The exploit is now public and may be used.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
访问控制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
D-Link多款产品 访问控制错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
D-Link DNS-320等都是中国友讯（D-Link）公司的产品。D-Link DNS-320是一款NAS（网络附属存储）设备。D-Link DNS-325是一款NAS（网络附属存储）设备。D-Link DNS-120是一个网络存储适配器。 D-Link多款产品存在访问控制错误漏洞，该漏洞源于访问控制不当。以下产品及版本受到影响：DNS-120、DNR-202L、DNS-315L、DNS-320、DNS-320L、DNS-320LW、DNS-321、DNR-322L、DNS-323、DNS-325、D
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
D-LinkDNS-120 20260205 -
D-LinkDNR-202L 20260205 -
D-LinkDNS-315L 20260205 -
D-LinkDNS-320 20260205 -
D-LinkDNS-320L 20260205 -
D-LinkDNS-320LW 20260205 -
D-LinkDNS-321 20260205 -
D-LinkDNR-322L 20260205 -
D-LinkDNS-323 20260205 -
D-LinkDNS-325 20260205 -
D-LinkDNS-326 20260205 -
D-LinkDNS-327L 20260205 -
D-LinkDNR-326 20260205 -
D-LinkDNS-340L 20260205 -
D-LinkDNS-343 20260205 -
D-LinkDNS-345 20260205 -
D-LinkDNS-726-4 20260205 -
D-LinkDNS-1100-4 20260205 -
D-LinkDNS-1200-05 20260205 -
D-LinkDNS-1550-04 20260205 -

II. Public POCs for CVE-2026-4194

#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium
Qwen3.6-35B-A3B · 7227 chars
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
100+ AI POC generations per month

III. Intelligence Information for CVE-2026-4194

请登录查看更多情报信息。

Vendor Pages for CVE-2026-4194 (1)

Other References for CVE-2026-4194 (1)

Same Patch Batch · D-Link · 2026-03-15 · 11 CVEs total

CVE-2026-41849.8 CRITICALD-Link DIR-816 goahead form2Wl5BasicSetup.cgi stack-based overflow
CVE-2026-41839.8 CRITICALD-Link DIR-816 goahead form2WlanBasicSetup.cgi stack-based overflow
CVE-2026-41829.8 CRITICALD-Link DIR-816 goahead form2Wl5RepeaterStep2.cgi stack-based overflow
CVE-2026-41819.8 CRITICALD-Link DIR-816 goahead form2RepeaterStep2.cgi stack-based overflow
CVE-2026-41888.8 HIGHD-Link DIR-619L boa formSchedule stack-based overflow
CVE-2026-41937.3 HIGHD-Link DIR-823G goahead UpdateClientInfo access control
CVE-2026-41807.3 HIGHD-Link DIR-816 goahead redirect.asp access control
CVE-2026-41976.3 MEDIUMD-Link DNS-1550-04 download_mgr.cgi RSS_Item_List command injection
CVE-2026-41966.3 MEDIUMD-Link DNS-1550-04 remote_backup.cgi cgi_set_rsync_server command injection
CVE-2026-41956.3 MEDIUMD-Link DNS-1550-04 wizard_mgr.cgi command injection

IV. Related Vulnerabilities

Same product: DNS-120
Same vendor: D-Link
Same weakness: CWE-284

V. Comments for CVE-2026-4194

No comments yet

Leave a comment