Vulnerability in Taiko Network Communications Pte Ltd. Ag1000-01a Sms Alert Gateway
CVE-2026-9139
Taiko AG1000-01A SMS Alert Gateway Rev 7.3 and Rev 8 contains a hard-coded credential vulnerability in the embedded web configuration interface where authentication is implemented entirely in client-side JavaScript in login.zhtml, exposing static plaintext credentials in the page source. Unauthenticated attackers with network access can recover administrative credentials directly from the client-side validate() function to obtain full administrative access to the device.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.007 (50.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 50th percentile — 50.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.007 · change: +0.002
Affected products
- Taiko Network Communications Pte Ltd. Ag1000-01a Sms Alert Gateway — versions Rev 7.3, Rev 8, UM-AG1000_R7.2
Weakness classification (CWE)
References
- medium.com/@forgetmen0t/multiple-vulnerabilities-in-taiko-ag1000-01a-sms-alert-… (technical-description)
- www.vulncheck.com/advisories/taiko-ag1000-01a-rev-8-hard-coded-credentials-via-… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-9139?
- CVE-2026-9139 is a critical-severity vulnerability in Taiko Network Communications Pte Ltd. Ag1000-01a Sms Alert Gateway, classified under Use of Hard-coded Credentials. CVSS score: 9.8/10. Published 2026-05-20.
- How severe is CVE-2026-9139?
- Critical severity. CVSS v3 base score is 9.8 out of 10.