What is CVE-2026-19891?

CVE-2026-19891 is a low-severity vulnerability in Trendnet Tew-Wlc100, classified under Cryptographic Issues. CVSS score: 3.7/10. Published 2026-08-15.

How severe is CVE-2026-19891?

Low severity. CVSS v3 base score is 3.7 out of 10.

Vulnerability in Trendnet Tew-Wlc100

CVE-2026-19891

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.

Vulnerability class: POODLE (CVE-2014-3566)

Published 2026-08-15 · last modified 2026-08-20.

CVSS v3 metric

CVSS v3 base score 3.7 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.002 (6.8th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 7th percentile — 6.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.001 · newest: 0.002 · change: +0.001

Affected products

Trendnet Tew-Wlc100 — versions 2.05b02

Weakness classification (CWE)

References

app.notion.com/p/TEW-WLC100-2-05b02-38b1f5ba989080f993facb660f17358e (related)
vuldb.com/cve/CVE-2026-19891 (third-party-advisory)
vuldb.com/submit/870587 (third-party-advisory)
vuldb.com/vuln/390080 (technical-description, vdb-entry)
vuldb.com/vuln/390080/cti (signature, permissions-required)

Frequently asked questions

What is CVE-2026-19891?: CVE-2026-19891 is a low-severity vulnerability in Trendnet Tew-Wlc100, classified under Cryptographic Issues. CVSS score: 3.7/10. Published 2026-08-15.
How severe is CVE-2026-19891?: Low severity. CVSS v3 base score is 3.7 out of 10.