🛡️ CVE-2026-71957

🔴 CVSS 9.8 — Critical ✅ No Known Exploit CWE-120 NVD
9.8
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

D-Link DWR-M961 devices with hardware version C1 and software version 1.1.2_C1_202602110044 contain a buffer overflow vulnerability in the app.cgi interface. A remote attacker can write an overly long string to the netAcc.addlist[].name field and execute arbitrary commands by crafting a specific payload, or cause the device to crash.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

Weakness class

CVE-2026-71957 is classified as CWE-120: Classic Buffer Overflow. Input is copied into a fixed-size buffer without a length check, overwriting memory past the end of it.

Affected software

CVE-2026-71957 is recorded against 1 package.

  • unknown

Timeline and source

Published on 8 August 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

supportannouncement.us.dlink.com
www.dlink.com
www.vulncheck.com

Details

Severity CRITICAL
CVSS Score 9.8
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE CWE-120
Public Exploit ✅ No
Source NVD
Published 2026-08-08
Updated 2026-08-11
Modified 2026-08-08
Fix URL N/A

Affected Packages

Software From version Fixed in
unknown — —

Similar Threats

Exploit Protection

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CVE-2026-71957 carries CVSS 9.8 Critical rating. BotEraser checks your installation against this and other known CVE records, and blocks IPs associated with exploit activity.

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