CVE-2026-5526 Tenda 4G03 Pro httpd access control
Remote attackers can bypass access controls on the Tenda 4G03 Pro router's httpd service due to improper authorization checks.
- 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-2026-5526?
CVE-2026-5526 is a medium-severity missing authorization vulnerability in Tenda 4G03 Pro, published on 4 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A security flaw has been discovered in Tenda 4G03 Pro up to 1.0/1.1/04.03.01.53/192.168.0.1. Affected by this vulnerability is an unknown functionality of the file /bin/httpd. The manipulation results in improper access controls. The attack may be performed from remote. The exploit has been released to the public and may be used for attacks.
Which versions are affected by CVE-2026-5526?
It affects 1 product.
Products include Tenda 4g03 Pro Firmware.
How do I fix CVE-2026-5526?
No fix has been published for CVE-2026-5526 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-2026-5526 being exploited?
There is no known exploitation of CVE-2026-5526 in the wild and no public exploit code.
Other vulnerabilities in Tenda 4G03 Pro
Sources
Also known as GHSA-6j5r-7fc4-q42h.