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CVE-2025-6882— D-Link DIR-513 formSetWanPPTP buffer overflow

Quick assessment

Affected
D-Link DIR-513
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

D-Link DIR-513是中国友讯（D-Link）公司的一款无线路由器产品。 D-Link DIR-513 1.0版本存在安全漏洞，该漏洞源于文件/goform/formSetWanPPTP中参数curTime的错误操作导致缓冲区溢出。

CVSS 8.8 · High EPSS 0.68% · P49
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I. Basic Information for CVE-2025-6882

Vulnerability Information
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Vulnerability Title
D-Link DIR-513 formSetWanPPTP buffer overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability classified as critical has been found in D-Link DIR-513 1.0. This affects an unknown part of the file /goform/formSetWanPPTP. The manipulation of the argument curTime leads to buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. This vulnerability only affects products that are no longer supported by the maintainer.
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
D-Link DIR-513 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
D-Link DIR-513是中国友讯（D-Link）公司的一款无线路由器产品。 D-Link DIR-513 1.0版本存在安全漏洞，该漏洞源于文件/goform/formSetWanPPTP中参数curTime的错误操作导致缓冲区溢出。
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
D-Link DIR-513 1.0 -

II. Public POCs for CVE-2025-6882

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III. Intelligence Information for CVE-2025-6882

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Vendor Advisories for CVE-2025-6882 (1)

Vendor Pages for CVE-2025-6882 (1)

Same Patch Batch · D-Link · 2025-06-30 · 8 CVEs total

CVE-2025-6881 8.8 HIGH D-Link DI-8100 jhttpd pppoe_base.asp buffer overflow
CVE-2025-6899 6.3 MEDIUM D-Link DI-7300G+/DI-8200G msp_info.htm os command injection
CVE-2025-6898 6.3 MEDIUM D-Link DI-7300G+ in proxy_client.asp os command injection
CVE-2025-6896 6.3 MEDIUM D-Link DI-7300G+ wget_test.asp os command injection
CVE-2025-6897 5.5 MEDIUM D-Link DI-7300G+ httpd_debug.asp os command injection
CVE-2025-6932 3.7 LOW D-Link DCS-7517 Qlync Password Generation httpd g_F_n_GenPassForQlync hard-coded password
CVE-2025-6931 3.7 LOW D-Link DCS-6517/DCS-7517 Root Password Generation httpd generate_pass_from_mac entropy

IV. Related Vulnerabilities

Same product: DIR-513
Same vendor: D-Link
Same weakness: CWE-120

V. Comments for CVE-2025-6882

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