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

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-77945— TRENDnet TEW-821DAP ssi upload.cgi command injection

Quick assessment

Affected
TRENDnet TEW-821DAP
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

TRENDnet tew-821dap是美国TRENDnet公司的一款无线接入点。 TRENDnet TEW-821DAP 2.2.01b05版本存在安全漏洞，该漏洞源于对文件/cgi-bin/upload.cgi中参数filename的错误操作，可能导致远程命令注入。

CVSS 7.4 · High EPSS 1.77% · P77

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
TRENDnet TEW-821DAP 2.2.01b05 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-77945

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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
TRENDnet TEW-821DAP ssi upload.cgi command injection
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was found in TRENDnet TEW-821DAP 2.2.01b05. Affected is an unknown function of the file /cgi-bin/upload.cgi of the component ssi. Performing a manipulation of the argument filename results in command injection. The attack may be initiated remotely. The exploit has been made public and could be used.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
在命令中使用的特殊元素转义处理不恰当(命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
TRENDnet TEW-821DAP 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
TRENDnet tew-821dap是美国TRENDnet公司的一款无线接入点。 TRENDnet TEW-821DAP 2.2.01b05版本存在安全漏洞，该漏洞源于对文件/cgi-bin/upload.cgi中参数filename的错误操作，可能导致远程命令注入。
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

Vendor Product Affected Versions CPE Subscribe
TRENDnet TEW-821DAP 2.2.01b05 cpe:2.3:o:trendnet:tew-821dap_firmware:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-77945

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 6487 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-2026-77945

请登录查看更多情报信息。

Vendor Advisories for CVE-2026-77945 (1)

Proof of Concept for CVE-2026-77945 (1)

News Coverage for CVE-2026-77945 (1)

Other References for CVE-2026-77945 (1)

Same Patch Batch · TRENDnet · 2026-08-22 · 3 CVEs total

CVE-2026-77946 10.0 CRITICAL TRENDnet TEW-821DAP NTP Timezone Configuration apply_time.cgi uci_safe_get stack-based ove
CVE-2026-77988 6.6 MEDIUM TRENDnet TEW-823DRU CLI Configuration Tool nvram_get command injection

IV. Related Vulnerabilities

Same product: TEW-821DAP
Same vendor: TRENDnet
Same weakness: CWE-77

V. Comments for CVE-2026-77945

No comments yet

Leave a comment