RCE in Trendnet Tew-755ap
CVE-2026-76591
A security flaw has been discovered in TRENDnet TEW-755AP up to 20260702. This affects the function log_email_server of the file /cgi-bin/email.cgi of the component ssi. Performing a manipulation results in command injection. The attack is possible to be carried out remotely. The exploit has been released to the public and may be used for attacks.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.4 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.018 (78.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 78th percentile — 78.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.013 · newest: 0.018 · change: +0.005
Affected products
- Trendnet Tew-755ap — versions 20260702
Weakness classification (CWE)
References
- github.com/meishigana/CVE/blob/main/team15_20260702/14_755ap-ssi-cmdi/poc/poc-s… (exploit)
- github.com/meishigana/CVE/tree/main/team15_20260702/14_755ap-ssi-cmdi (related)
- vuldb.com/cve/CVE-2026-76591 (third-party-advisory)
- vuldb.com/submit/877853 (third-party-advisory)
- vuldb.com/vuln/393088 (technical-description, vdb-entry)
- vuldb.com/vuln/393088/cti (signature, permissions-required)
Frequently asked questions
- What is CVE-2026-76591?
- CVE-2026-76591 is a high-severity vulnerability in Trendnet Tew-755ap, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 7.4/10. Published 2026-08-19.
- How severe is CVE-2026-76591?
- High severity. CVSS v3 base score is 7.4 out of 10.