RCE in Nfsen

CVE-2017-7175

NfSen before 1.3.8 allows remote attackers to execute arbitrary OS commands via shell metacharacters in the customfmt parameter (aka the "Custom output format" field).

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.065 (93.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.9 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.

Affected products

  • Nfsen
  • N/a — versions n/a

Weakness classification (CWE)

Public proof-of-concept exploits

References

  • cve@mitre.org (x_refsource_CONFIRM, Vendor Advisory)
  • cve@mitre.org (VDB Entry, Third Party Advisory, exploit, x_refsource_EXPLOIT-DB)

Frequently asked questions

What is CVE-2017-7175?
CVE-2017-7175 is a critical-severity vulnerability in Nfsen, classified under OS Command Injection. CVSS score: 9.9/10. Published 2017-07-10.
How severe is CVE-2017-7175?
Critical severity. CVSS v3 base score is 9.9 out of 10.
Is CVE-2017-7175 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.