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CVE-2026-108971— D-Link DCS-930L Emergency HTTP Recovery Server bootloader_region.bin mpfd_decode signature verification

Quick assessment

Affected
D-Link DCS-930L
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.

在 D-Link DCS-930L B1.08B4 中发现了一个安全漏洞。该漏洞影响了组件“Emergency HTTP Recovery Server”中文件 的 函数。通过对参数 进行恶意操控，可导致加密签名验证失败。攻击者可以从远程发起攻击，相关利用代码已被公开，可能被实际利用。

CVSS 9.6 · Critical EPSS 0.22% · P12

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
D-Link DCS-930L B1.08B4 affected
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I. Basic Information for CVE-2026-108971

Vulnerability Information
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Vulnerability Title
D-Link DCS-930L Emergency HTTP Recovery Server bootloader_region.bin mpfd_decode signature verification
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw has been found in D-Link DCS-930L B1.08B4. This impacts the function mpfd_decode of the file bootloader_region.bin of the component Emergency HTTP Recovery Server. Executing a manipulation of the argument firmware can lead to improper verification of cryptographic signature. The attack may be performed from remote. The exploit has been published and may be used.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
密码学签名的验证不恰当
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
D-Link DCS-930L B1.08B4 cpe:2.3:h:d-link:dcs-930l:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-108971

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-108971

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Vendor Pages for CVE-2026-108971 (1)

Other References for CVE-2026-108971 (1)

IV. Related Vulnerabilities

Same product: DCS-930L
Same vendor: D-Link
Same weakness: CWE-347

V. Comments for CVE-2026-108971

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