Public proof of concept

CVE-2017-6971

A public proof of concept exists; no exploitation attested.

Published2017-03-22
WeaknessCWE-74

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

AlienVault USM and OSSIM before 5.3.7 and NfSen before 1.3.8 allow remote authenticated users to execute arbitrary commands in a privileged context, or launch a reverse shell, via vectors involving the PHP session ID and the NfSen PHP code, aka AlienVault ID ENG-104862.

Timeline

dates in UTC

2017-03-2214:59CVE publishedNVD
2026-10-2319:23First public proof of conceptPoC-in-GitHub
2026-10-2319:23EPSS crossed 10 %FIRST EPSS

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2017-6971?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2017-6971?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Alienvault ossim

Branch	Affected	Fixed in	Source
5.3	≤ 5.3.6	no fix published	NVD

Alienvault unified security management

Branch	Affected	Fixed in	Source
5.3	≤ 5.3.6	no fix published	NVD

Nfsen

Branch	Affected	Fixed in	Source
1.3	≤ 1.3.7	no fix published	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Advisories and patches

www.alienvault.comVendor Advisory
www.alienvault.comVendor Advisory

Detection

read 2026-10-23 19:23 UTC

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: 2 repositories, unverifiedpatrickfreed/nfsen-exploitKeyStrOke95/nfsen_1.3.7_CVE-2017-6971

Sources

NVDCVSS 3.08.8read 2026-10-23
NVDCVSS 2.09read 2026-10-23
NVDweakness (CWE)CWE-74read 2026-10-23
FIRST EPSSEPSS score16.2 %read 2026-10-23
PoC-in-GitHubproof of concept2read 2026-10-23

Technical details

CVSS v3 Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published: 2017-03-22
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2017-6971?

Is CVE-2017-6971 actively exploited?

Active exploitation of CVE-2017-6971 has not been confirmed. Its EPSS score was 16.2% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2017-6971?

CVE-2017-6971 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

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