No exploitation reportedFix available

CVE-2017-8303

Q: Is CVE-2017-8303 actively exploited?

Active exploitation of CVE-2017-8303 has not been confirmed. Its EPSS score was 24.2% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2017-8303?

CVE-2017-8303 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

No exploitation reported by the sources we read.

Published2017-05-05
Fixed in9_12_180
WeaknessCWE-116

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

An issue was discovered on Accellion FTA devices before FTA_9_12_180. seos/1000/find.api allows Remote Code Execution with shell metacharacters in the method parameter.

Timeline

dates in UTC

2017-05-0518:29CVE publishedNVD
2026-10-2319:23EPSS crossed 10 %FIRST EPSS

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 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-2017-8303?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2017-8303?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Accellion file transfer appliance

Branch	Affected	Fixed in	Source
9.x	< 9_12_180	9_12_180	NVD

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

Fix

Update Accellion file transfer appliance to 9_12_180

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVSS 3.19.8read 2026-10-23
NVDCVSS 2.07.5read 2026-10-23
NVDweakness (CWE)CWE-116read 2026-10-23
FIRST EPSSEPSS score24.2 %read 2026-10-23

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published: 2017-05-05
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2017-8303?

An issue was discovered on Accellion FTA devices before FTA_9_12_180. seos/1000/find.api allows Remote Code Execution with shell metacharacters in the method parameter.

Is CVE-2017-8303 actively exploited?

Active exploitation of CVE-2017-8303 has not been confirmed. Its EPSS score was 24.2% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2017-8303?

CVE-2017-8303 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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