CVE-2026-19891 TRENDnet TEW-WLC100 IKE Phase 1 Aggressive Mode racoon.conf missing encryption
Remote attackers can intercept sensitive IKE Phase 1 data due to missing encryption in the racoon configuration of TRENDnet wireless controllers.
- 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-2026-19891?
CVE-2026-19891 is a medium-severity vulnerability in TRENDnet TEW-WLC100, published on 15 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability was determined in TRENDnet TEW-WLC100 2.05b02. This affects an unknown function of the file /etc/racoon.conf of the component IKE Phase 1 Aggressive Mode. This manipulation of the argument exchange_mode causes missing encryption of sensitive data. It is possible to initiate the attack remotely. The complexity of an attack is rather high. The exploitability is reported as difficult. The vendor was contacted early about this disclosure.
Which versions are affected by CVE-2026-19891?
How do I fix CVE-2026-19891?
No fix has been published for CVE-2026-19891 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-19891 being exploited?
There is no known exploitation of CVE-2026-19891 in the wild and no public exploit code.
Sources
Also known as GHSA-5823-mg62-gvvv.