Which products and versions are affected by CVE-2015-2857?

Affected: File Transfer Appliance (Accellion). The full list is in the CVE brief.

Is CVE-2015-2857 being exploited in the wild?

It is not listed in any known-exploited vulnerabilities catalog.

Is CVE-2015-2857 in the CISA KEV catalog?

No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.

Is there a public exploit for CVE-2015-2857?

Public exploit code is available.

Is there a fix for CVE-2015-2857?

Fixed versions are available, including File Transfer Appliance 9_11_200.

How urgently should CVE-2015-2857 be patched?

Brandefense priority: patch immediately, because it is very likely to be exploited soon.

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Vulnerability Intelligence

CVE-2015-2857

CriticalPublic exploit

Accellion File Transfer Appliance before FTA_9_11_210 allows remote attackers to execute arbitrary code via shell metacharacters in the oauth_token parameter.

Published Aug 22, 2017 · Updated May 12, 2026

Key Facts

Patch immediately

CVE-2015-2857 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting File Transfer Appliance (Accellion).
It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
EPSS estimates a 84% probability of exploitation in the next 30 days.
Fixed versions are available, including File Transfer Appliance 9_11_200.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

CVSS v3.1

9.8

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS (30-day exploit likelihood)

84%

Higher than 99.6% of all scored CVEs

Exploited in the wild

No known

Not in a known-exploited catalog

Public exploit code

Available

Proof-of-concept or weaponized module

Get the full CVE-2015-2857 brief as a PDF

Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.

Description

Accellion File Transfer Appliance before FTA_9_11_210 allows remote attackers to execute arbitrary code via shell metacharacters in the oauth_token parameter.

Affected Products

1 affected entries in total

Product	Affected versions	Fixed in
File Transfer ApplianceAccellion	See advisory	9_11_200

Patched Releases

File Transfer Appliance

9_11_200

Timeline

Publicly disclosed
Aug 22, 2017
Last updated
May 12, 2026

Weakness Type

CWE-77 Improper Neutralization of Special Elements used in a Command ('Command Injection')

References

1 more references in the full CVE brief

FAQ

Common Questions.

Accellion File Transfer Appliance before FTA_9_11_210 allows remote attackers to execute arbitrary code via shell metacharacters in the oauth_token parameter.
Affected: File Transfer Appliance (Accellion). The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including File Transfer Appliance 9_11_200.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

Is CVE-2015-2857 Running On Your Attack Surface?

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