Threats / Apache / CVE-2016-3088
CVE-2016-3088
· EUVD no mirror located
· GCVE no mirror located
Verified 2026-06-22
Apache ActiveMQ vulnerability
Apache ActiveMQ Fileserver allows remote attackers to upload and execute arbitrary files through HTTP PUT and MOVE requests, enabling unauthenticated code execution.
Verdict
Today item — known-exploited.
An unauthenticated remote attacker can exploit improper input validation in ActiveMQ's Fileserver to upload malicious files and execute arbitrary code on affected systems. Active exploitation in the wild demonstrates immediate operational risk.
01
Is it exploitable?
— the evidence, ranked above the scoreExploit available
Fully weaponized — public exploit code is cataloged for this vulnerability.We link the existence of the exploit; we do not host or redistribute payloads.
Reported exploitation
754 independent public reports of in-the-wild exploitation are cataloged.Distinct reporting sources (vendor, incident response, government); open them for the underlying claims.
Exploited in the wild
Listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-02-10).
Probability (EPSS)
EPSS 0.98518 — modeled likelihood of exploitation activity.EPSS is a daily-changing model output — open the source for today's value.
Severity / affected
Affected: Apache, ActiveMQ. Confirm exact fixed builds in the vendor advisory.
Weakness (CWE)
Mapped to CWE-20 Improper Input Validation.CWE assignment from the public NVD record; the weakness class drives how the flaw is exploited.
02
Who’s exploiting it?
— attribution turns risk into urgencyAttribution not established
No confirmed (advisory-backed) threat-actor attribution is established for this record. Absence of a named actor is not absence of compromise — see Coverage & confidence.
03
Why it matters
— the attack path, told twice: adversary, then board1
Front door — unauthenticated access narrative 1
Attacker
I craft an HTTP PUT request to upload a malicious file to the Fileserver web application.
Business
Attacker gains initial file write access to the server without authentication.
2
Keys to the kingdom — privilege/identity takeover narrative 2
Attacker
I follow up with an HTTP MOVE request to relocate the uploaded file to an executable location.
Business
Attacker positions the malicious payload where the application will execute it.
3
Lateral reach — past segmentation narrative 3
Attacker
I trigger execution of the relocated file, achieving remote code execution on the target system.
Business
Attacker gains full system compromise, enabling data theft, lateral movement, or service disruption.
04
What to do
— defensible action- Remediate per the vendor advisory — confirm the fixed build for your version and verify exposure.1
Say it to the boardA vulnerability with this evidence profile is a defensible budget line, not a backlog ticket — fund the change against the proof above.
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