High severity · published Jan 8, 2026
CVE-2025-67858
A crafted "interface" input parameter can lead to integrity loss of the firewall configuration
7.0
CVSS
0.2%
EPSS
No
On KEV
Description
A Improper Neutralization of Argument Delimiters vulnerability in Foomuuri can lead to integrity loss of the firewall configuration or further unspecified impact by manipulating the JSON configuration passed to `nft`. This issue affects Foomuuri: from ? before 0.31.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 8% 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