CVE-2026-19412 Hardcoded Credentials Vulnerability in CP Plus CP-XR-DE21-S Router
Hardcoded HTTP Digest credentials in CP Plus router firmware allow local attackers to gain unauthorized administrative access and perform privileged operations.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-19412?
CVE-2026-19412 is a high-severity vulnerability in CP-XR-DE21-S Router, published on 28 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
This vulnerability exists in the CP Plus CP-XR-DE21-S Router due to the presence of hardcoded HTTP Digest authentication credentials in the firmware that are identical across all devices running the affected firmware. An attacker with access to the local network could exploit this vulnerability by obtaining the hardcoded authentication information from the firmware.
Successful exploitation of this vulnerability could allow the attacker to gain unauthorized administrative access and perform privileged operations on the targeted device.
Weakness: CWE-798
Which versions are affected by CVE-2026-19412?
How do I fix CVE-2026-19412?
No fix has been published for CVE-2026-19412 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-19412 being exploited?
There is no known exploitation of CVE-2026-19412 in the wild and no public exploit code.
Sources
Also known as GHSA-3h26-q4ch-cw3m.