CVE-2025-6292Public exploitNetwork attack vector

Authenticated memory corruption via unchecked POST path

Published Jun 20, 2025 · Updated Jun 23, 2025

Stack-based buffer overflow in D-Link DIR-825 2.03 allows remote authenticated users to corrupt httpd memory via a crafted POST path. The sub_4091AC handler appends the requested path to /www/ with unbounded strcat into a 14-byte stack buffer. Access to the HTTP management interface and valid credentials are required; the public demonstration establishes memory corruption, not code execution.

CVSS severity8.8
High
EPSS probability1.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack-based buffer overflow in D-Link DIR-825 2.03 allows remote authenticated users to corrupt httpd memory via a crafted POST path. The sub_4091AC handler appends the requested path to /www/ with unbounded strcat into a 14-byte stack buffer. Access to the HTTP management interface and valid credentials are required; the public demonstration establishes memory corruption, not code execution.

The record

CVE
CVE-2025-6292
Published
Jun 20, 2025
Updated
Jun 23, 2025
Vendor
D-Link
Product
DIR-825
Classifications
CWE-119, CWE-121, T1210
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 20, 2025CVE publishedPublication date reported by the CVE source.
  2. Jun 23, 2025Record 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=2.03

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

D-Link · DIR-825version=2.03

Published CVSS scores

9.0VulDBAV:N/AC:L/Au:S/C:C/I:C/A:C
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
8.8VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-121Stack-based Buffer Overflow
T1210Exploitation of Remote Services

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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