Vulnerability · Published Oct 12, 2026 · Assigned by VulDB

CVE-2026-108896Linksys E1700 setLinksysIpv6 os command injection

Critical 9.9

In plain English

A critical-severity OS command injection in E1700 from Linksys. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 2.2% (higher than 83% of all known vulnerabilities).

Severity (CVSS 3.1)9.9Critical

Exploit odds (30 days)2.2%top 17.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
Linksys	E1700	1.0.0.4.003

Weakness: CWE-78, CWE-77 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R

References

VDB-416683 | Linksys E1700 setLinksysIpv6 os command injection vdb-entry, technical-description
VDB-416683 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
CVE-2026-108896 | CVE Analysis and Report third-party-advisory
Submit #973115 | Linksys E1700 1.0.0.4.003 OS Command Injection third-party-advisory
https://github.com/wudipjq/my_vuln/blob/main/Linksys3/vuln_70/70.md broken-link, exploit
https://www.linksys.com/ product