RCE in Linksys Re6250

CVE-2025-8828

A vulnerability was determined in Linksys RE6250, RE6300, RE6350, RE6500, RE7000 and RE9000 up to 20250801. Affected is the function ipv6cmd of the file /goform/setIpv6. The manipulation of the argument Ipv6PriDns/Ipv6SecDns/Ipv6StaticGateway/LanIpv6Addr/LanPrefixLen/pppoeUser/pppoePass/pppoeIdleTime/pppoeRedialPeriod/Ipv6in4_PrefixLen/LocalIpv6/RemoteIpv4/LanIPv6_Prefix/LanPrefixLen/ipv6to4Relay/ipv6rdRelay/tunrd_PrefixLen/wan_UseLinkLocal/Ipv6StaticIp/Ipv6PrefixLen leads to os command injection. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.083 (94.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2025-8828?
CVE-2025-8828 is a medium-severity vulnerability in Linksys Re6250, classified under Command Injection. CVSS score: 6.3/10. Published 2025-08-11.
How severe is CVE-2025-8828?
Medium severity. CVSS v3 base score is 6.3 out of 10.
Is CVE-2025-8828 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.