Medium severity · published Jan 8, 2026
CVE-2025-67603
Lack of client authorization allows arbitrary users to influence the firewall configuration
5.1
CVSS
0.2%
EPSS
No
On KEV
Description
A Improper Authorization vulnerability in Foomuuri llows arbitrary users to influence the firewall configuration.This issue affects Foomuuri: from ? before 0.31.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 5% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FO
Foomuuri · https://github.com/FoobarOy/
? before 0.31 · source: vendor