CVE-2025-29515 Missing authorization in n/a

Critical 9.8 Published 25 Aug 2025 Updated 25 Aug 2025

Attackers can modify arbitrary device settings, including the administrator password, due to incorrect access control in the DELT_file.xgi endpoint.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2025-29515?

CVE-2025-29515 is a critical missing authorization vulnerability in n/a, published on 25 Aug 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Incorrect access control in the DELT_file.xgi endpoint of D-Link DSL-7740C with firmware DSL7740C.V6.TR069.20211230 allows attackers to modify arbitrary settings within the device's XML database, including the administrator’s password.

Weakness: CWE-284

Which versions are affected by CVE-2025-29515?

It affects 1 product.

Products include Dlink Dsl-7740c Firmware.

How do I fix CVE-2025-29515?

No fix has been published for CVE-2025-29515 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2025-29515 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-29515 exists.

Sources

Also known as GHSA-prjv-p6ff-2r98.