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CVE-2025-12596— Tenda AC23 saveParentControlInfo buffer overflow

Quick assessment

Affected
Tenda AC23
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.

Tenda AC23是中国腾达（Tenda）公司的一款双频千兆无线路由器。 Tenda AC23 16.03.07.52版本存在安全漏洞，该漏洞源于对文件/goform/saveParentControlInfo中参数Time的错误操作，可能导致缓冲区溢出。

CVSS 8.8 · High EPSS 1.11% · P65
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I. Basic Information for CVE-2025-12596

Vulnerability Information
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Vulnerability Title
Tenda AC23 saveParentControlInfo buffer overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A security vulnerability has been detected in Tenda AC23 16.03.07.52. Affected is the function saveParentControlInfo of the file /goform/saveParentControlInfo. Such manipulation of the argument Time leads to buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed publicly and may be used.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未进行输入大小检查的缓冲区拷贝(传统缓冲区溢出)
Source: CVE Program / CVE List V5
Vulnerability Title
Tenda AC23 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Tenda AC23是中国腾达（Tenda）公司的一款双频千兆无线路由器。 Tenda AC23 16.03.07.52版本存在安全漏洞，该漏洞源于对文件/goform/saveParentControlInfo中参数Time的错误操作，可能导致缓冲区溢出。
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
Tenda AC23 16.03.07.52 cpe:2.3:o:tenda:ac23_firmware:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2025-12596

# POC Description Source Link Shenlong Link
1 Improper Restriction of Operations within the Bounds of a Memory Buffer (CWE-119) https://github.com/DebugFrag/CVE-2025-12596-Exploit POC Details
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Qwen3.6-35B-A3B · 9259 chars
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III. Intelligence Information for CVE-2025-12596

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Other References for CVE-2025-12596 (1)

IV. Related Vulnerabilities

Same product: AC23
Same vendor: Tenda
Same weakness: CWE-120

V. Comments for CVE-2025-12596

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