CVE-2026-7289Public exploitNetwork attack vector

Authenticated web-server crash via unbounded submit-url copy

Published Apr 28, 2026 · Updated Apr 28, 2026

Stack-based buffer overflow in D-Link DIR-825M 1.1.12 allows remote authenticated users to crash the web server via crafted HTTP. The sub_414BA8 function in /boafrm/formWanConfigSetup passes the untrusted submit-url value to strcpy, which copies it into a fixed-size stack buffer without a length check. Published metrics require low-privileged access, despite the reproducer's unauthenticated claim; demonstrated impact is a web-server crash.

CVSS severity8.8
High
EPSS probability0.69%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

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Summary

What happened

Stack-based buffer overflow in D-Link DIR-825M 1.1.12 allows remote authenticated users to crash the web server via crafted HTTP. The sub_414BA8 function in /boafrm/formWanConfigSetup passes the untrusted submit-url value to strcpy, which copies it into a fixed-size stack buffer without a length check. Published metrics require low-privileged access, despite the reproducer's unauthenticated claim; demonstrated impact is a web-server crash.

The record

CVE
CVE-2026-7289
Published
Apr 28, 2026
Updated
Apr 28, 2026
Vendor
D-Link
Product
DIR-825M
Classifications
CWE-120, CWE-119, T1499.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 28, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 28, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.1.12

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

D-Link · DIR-825Mversion=1.1.12

Published CVSS scores

9.0VulDBAV:N/AC:L/Au:S/C:C/I:C/A:C
8.8VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.4VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
T1499.004Application or System Exploitation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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