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).
CVE-2017-7175
Score 9.9 from GitHub Security Advisory (severity: CRITICAL) published 2022-05-17. NVD baseline CVSS 9.9; sources differ by 0.0.
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 9.9
- EG Score
- 9.9(medium)
- EPSS
- 93.0%
- KEV
- Not listed
Published
July 10, 2017
Last Modified
May 13, 2026
Advisory Details (2)
Auto-updated Jul 5, 2026NfSen < 1.3.7 / AlienVault OSSIM 4.3.1 - 'customfmt' Command Injection - Linux webapps Exploit
https://www.exploit-db.com/exploits/42314/nfsen / News: nfsen-1.3.8 released - SECURITY FIX
https://sourceforge.net/p/nfsen/news/2017/01/nfsen-138-released---security-fix/Data Freshness Timeline
(refreshed 12× in last 7d / 43× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Showing the most recent 100 of 111 total refreshes for this CVE.
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Publicly available exploits
(1 reference)Working exploit code is in the public domain (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
- Exploit-DBEDB-42314✓ verifiedFirst seen Jul 11, 2017
NfSen < 1.3.7 / AlienVault OSSIM 4.3.1 - 'customfmt' Command Injection
Open source ↗
Frequently asked(5)
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