Buffer overflow in Efm Iptime A8004t
CVE-2026-8234
A security vulnerability has been detected in EFM ipTIME A8004T 14.18.2. This vulnerability affects the function formWifiBasicSet of the file /goform/WifiBasicSet. The manipulation of the argument security_5g leads to stack-based buffer overflow. The attack may be initiated remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.008 (55.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 55.0% 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: 0.008 · change: +0.003
Affected products
- Efm Iptime A8004t — versions 14.18.2
Weakness classification (CWE)
References
- vuldb.com/vuln/362454 (technical-description, vdb-entry)
- vuldb.com/vuln/362454/cti (signature, permissions-required)
- vuldb.com/submit/808865 (third-party-advisory)
- github.com/Kiciot/cve/issues/5 (issue-tracking, exploit)
Frequently asked questions
- What is CVE-2026-8234?
- CVE-2026-8234 is a high-severity vulnerability in Efm Iptime A8004t, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.8/10. Published 2026-05-10.
- How severe is CVE-2026-8234?
- High severity. CVSS v3 base score is 8.8 out of 10.