This vulnerability involves insufficient entropy in the session management function (CWebSessionManager_ParseSession) of the Kylin Web Service component on affected Tenda devices. Specifically, manipulation of the SESSION argument leads to weak randomness or predictability in session handling, potentially undermining security mechanisms relying on entropy. The vulnerability is remotely exploitable but requires high complexity to achieve. It affects multiple Tenda router models up to the 20260625 version. There is no vendor advisory or patch information available at this time.

The vulnerability could allow an attacker to exploit weak entropy in session management, potentially compromising session security on affected devices. However, the attack complexity is high, and no known exploits are reported in the wild. The impact is rated medium severity with limited direct evidence of exploitation or broader impact.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Due to the lack of an official fix or vendor advisory, no specific mitigation steps can be recommended at this time. Monitor for vendor updates and apply patches once available.