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CVE-2026-77988— TRENDnet TEW-823DRU CLI Configuration Tool nvram_get command injection

Quick assessment

Affected
TRENDnet TEW-823DRU
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-823DRU是美国TRENDnet公司的一款高性能无线路由器。 TRENDnet TEW-823DRU 1.1.02b01版本存在安全漏洞，该漏洞源于CLI Configuration Tool组件的nvram_get函数容易受到命令注入攻击。

CVSS 6.6 · Medium EPSS 2.40% · P84

Affected Version Matrix 1

VendorProduct Version RangeStatus
TRENDnet TEW-823DRU 1.1.02b01 affected
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I. Basic Information for CVE-2026-77988

Vulnerability Information
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Vulnerability Title
TRENDnet TEW-823DRU CLI Configuration Tool nvram_get command injection
Source: CVE Program / CVE List V5
Vulnerability Description
A weakness has been identified in TRENDnet TEW-823DRU 1.1.02b01. This vulnerability affects the function nvram_get of the component CLI Configuration Tool. This manipulation causes command injection. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be used for attacks.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/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-823DRU 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
TRENDnet TEW-823DRU是美国TRENDnet公司的一款高性能无线路由器。 TRENDnet TEW-823DRU 1.1.02b01版本存在安全漏洞，该漏洞源于CLI Configuration Tool组件的nvram_get函数容易受到命令注入攻击。
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-823DRU 1.1.02b01 cpe:2.3:a:trendnet:tew-823dru:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-77988

# POC Description Source Link Shenlong Link
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default-local-qwen3.6 · 10732 chars
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Full executable POC code
Exploit chain & mitigation
POC zip download
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III. Intelligence Information for CVE-2026-77988

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Vendor Advisories for CVE-2026-77988 (3)

Proof of Concept for CVE-2026-77988 (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-2026-77945 7.4 HIGH TRENDnet TEW-821DAP ssi upload.cgi command injection

IV. Related Vulnerabilities

Same product: TEW-823DRU
Same vendor: TRENDnet
Same weakness: CWE-77

V. Comments for CVE-2026-77988

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