Vulnerability · Published Aug 8, 2026 · Assigned by VulnCheck
CVE-2026-71957D-Link DWR-M961 Buffer Overflow via app.cgi
Critical 9.8
In plain English
A critical-severity buffer overflow in DWR-M961 from D-Link Corporation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.1% (higher than 65% of all known vulnerabilities).
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)1.1%top 34.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| D-Link Corporation | DWR-M961 | 0 – before 1.1.5_C1_202607071108 |
Weakness: CWE-120 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
- D-Link Advisory vendor-advisory, patch
- Product Webpage product
- https://www.vulncheck.com/advisories/d-link-dwr-m961-buffer-overflow-via-app-cgi third-party-advisory