RCE in Linksys E1700
CVE-2026-108896
A vulnerability was found in Linksys E1700 1.0.0.4.003. This affects the function setLinksysIpv6 of the file /goform/setLinksysIpv6. The manipulation of the argument _6rd_prefix/_6rd_prefix_len results in os command injection. The attack can be launched remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.
Vulnerability class: Command Injection (OS Command Injection)
Published .
CVSS v3 metric
CVSS v3 base score 9.9 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Linksys E1700 — versions 1.0.0.4.003
Weakness classification (CWE)
References
- vuldb.com/vuln/416683 (technical-description, vdb-entry)
- vuldb.com/vuln/416683/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-108896 (third-party-advisory)
- vuldb.com/submit/973115 (third-party-advisory)
- github.com/wudipjq/my_vuln/blob/main/Linksys3/vuln_70/70.md (exploit, broken-link)
- www.linksys.com/ (product)
Frequently asked questions
- What is CVE-2026-108896?
- CVE-2026-108896 is a critical-severity vulnerability in Linksys E1700, classified under Command Injection. CVSS score: 9.9/10. Published 2026-10-12.
- How severe is CVE-2026-108896?
- Critical severity. CVSS v3 base score is 9.9 out of 10.