CVE-2025-29520Public exploitNetwork attack vector

Authenticated privilege escalation via cross-account password change

Published Aug 25, 2025 · Updated Aug 26, 2025

Incorrect access control in D-Link DSL-7740C firmware DSL7740C.V6.TR069.20211230 allows remote authenticated users to gain elevated privileges. The Maintenance module processes a password change targeting a high-privilege account without enforcing the caller's privilege boundary. A low-level account and network access to the management interface are required; successful exploitation enables takeover of a privileged account.

CVSS severity5.3
Medium
EPSS probability0.58%
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

Incorrect access control in D-Link DSL-7740C firmware DSL7740C.V6.TR069.20211230 allows remote authenticated users to gain elevated privileges. The Maintenance module processes a password change targeting a high-privilege account without enforcing the caller's privilege boundary. A low-level account and network access to the management interface are required; successful exploitation enables takeover of a privileged account.

The record

CVE
CVE-2025-29520
Published
Aug 25, 2025
Updated
Aug 26, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-284, T1098
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 25, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 26, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.3CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

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.

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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-284Improper Access Control
T1098Account Manipulation

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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