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Public proof of conceptFix available

CVE-2017-8051

A public proof of concept exists; no exploitation attested.

  • Published2017-04-21
  • WeaknessCWE-78

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

Tenable Appliance 3.5 - 4.4.0, and possibly prior versions, contains a flaw in the simpleupload.py script in the Web UI. Through the manipulation of the tns_appliance_session_user parameter, a remote attacker can inject arbitrary commands.

Timeline

dates in UTC
  1. 2017-04-2118:59CVE publishedNVD
  2. 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-2017-8051?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2017-8051?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Tenable appliance
BranchAffectedFixed in
3.4= 3.4.0no fix published
3.5= 3.5.0no fix published
3.5= 3.5.1no fix published
3.10= 3.10.0no fix published
3.10= 3.10.1no fix published
4.0= 4.0.0no fix published
4.1= 4.1.0no fix published
4.2= 4.2.0no fix published
4.3= 4.3.0no fix published
4.3= 4.3.1no fix published
4.4= 4.4.0no fix published

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

Fix

Advisories and patches

Detection

read 2026-10-23 19:23 UTC
Nuclei template
none so far
ProjectDiscovery
Exploit-DB
EDB-41892
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub

Sources

  • NVDCVSS 3.09.8read 2026-10-23
  • NVDCVSS 2.010read 2026-10-23
  • NVDweakness (CWE)CWE-78read 2026-10-23
  • FIRST EPSSEPSS score16.5 %read 2026-10-23
  • Exploit-DBdetectionread 2026-10-23

Technical details

CVSS v3 Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2017-04-21
Last Modified
2026-06-17
NVD status
Modified

Frequently asked questions

What is CVE-2017-8051?

Tenable Appliance 3.5 - 4.4.0, and possibly prior versions, contains a flaw in the simpleupload.py script in the Web UI. Through the manipulation of the tns_appliance_session_user parameter, a remote attacker can inject arbitrary commands.

Is CVE-2017-8051 actively exploited?

Active exploitation of CVE-2017-8051 has not been confirmed. Its EPSS score was 16.5% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2017-8051?

CVE-2017-8051 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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