CVE-2025-11666: Tenda RP3 Pro · Use of Hard-coded Password
Affects Tenda RP3 ProSource CVE Database V5
Public exploit available · CVSS 8.4 High.
Data as of 26 Oct 2026, 14:05 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 4% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:PExploitation evidence
Disclosed: evidence found.
CVE published 13 Oct 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: evidence found.
CVSS exploit maturity: proof of concept public
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), CVSS vector, the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Tenda RP3 Pro | Affected
| Fixed in– |
AI-suggested
Since no official patches or firmware updates are currently available, European organizations should implement immediate compensating controls. These include restricting physical and local network access to Tenda RP3 Pro devices, enforcing strict network segmentation to isolate vulnerable routers from critical systems, and monitoring for unusual firmware upgrade attempts or device behavior. Administrators should disable or restrict access to the Firmware Update Handler component if possible, or replace affected devices with models from vendors with timely security support. Employing network intrusion detection systems (NIDS) to detect anomalous upgrade commands or unauthorized access attempts can provide early warning. Regularly auditing device configurations and access logs is essential to identify potential exploitation. Organizations should also educate staff about the risks of local device access and enforce strong internal security policies. Once Tenda releases a patch, immediate firmware upgrade is critical. Until then, consider deploying endpoint security solutions that can detect lateral movement or exploitation attempts originating from compromised routers.
Description
A flaw has been found in Tenda RP3 Pro up to 22.5.7.93. This impacts an unknown function of the file force_upgrade.sh of the component Firmware Update Handler. Executing manipulation of the argument current_force_upgrade_pwd can lead to use of hard-coded password. The attack can only be executed locally. The exploit has been published and may be used.