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Threats / ImageMagick / CVE-2016-3718
CVE-2016-3718 · EUVD no mirror located · GCVE no mirror located Verified 2026-06-22

ImageMagick vulnerability

ImageMagick contains an unspecified vulnerability allowing server-side request forgery (SSRF) attacks via crafted images. The flaw has been exploited in the wild.

Verdict

Today item — known-exploited.

An attacker can craft a malicious image to trigger SSRF in ImageMagick, potentially accessing internal services, metadata, or resources not directly exposed to the internet. This vulnerability is actively exploited.

CISA KEV Yes · 2021-11-033EPSS 0.76897 (verify live)4
01

Is it exploitable?

— the evidence, ranked above the score
Reported exploitation
1 independent public report of in-the-wild exploitation are cataloged.Distinct reporting sources (vendor, incident response, government); open them for the underlying claims.
cisa.gov ↗Confirmed
Exploited in the wild
Listed in the CISA Known Exploited Vulnerabilities catalog (added 2021-11-03).
CISA KEV ↗Confirmed
Probability (EPSS)
EPSS 0.76897 — modeled likelihood of exploitation activity.EPSS is a daily-changing model output — open the source for today's value.
Severity / affected
Affected: ImageMagick, ImageMagick. Confirm exact fixed builds in the vendor advisory.
NVD ↗Reported
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.
NVD ↗Reported
02

Who’s exploiting it?

— attribution turns risk into urgency
Attribution 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 board
1

Front door — unauthenticated access narrative 1

Attacker
I craft a specially formatted image file designed to trigger image processing in the target application.
Business
The application processes user-supplied images without proper validation, creating an attack surface.
2

Keys to the kingdom — privilege/identity takeover narrative 2

Attacker
I exploit the SSRF flaw to make the server issue requests to internal network resources, cloud metadata endpoints, or localhost services.
Business
Internal systems and sensitive data become accessible to external attackers through the compromised image processing pipeline.
3

Lateral reach — past segmentation narrative 3

Attacker
I retrieve information about internal infrastructure, credentials, or service configurations exposed through the SSRF channel.
Business
Confidential operational details and authentication material are disclosed, enabling further compromise of the infrastructure.
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.
05

Coverage & confidence

— what we know, and what we don’t

Established (cited)

  • KEV listing (CISA)
  • EPSS probability (FIRST)
  • 1 reported-exploitation source(s)
  • CWE weakness mapping (NVD)
  • Catalogued by redhat (CNA)
  • Coverage gaps — stated, not hidden

  • No EUVD / GCVE mirror in feed — single-authority dependency for the identifier.
  • EPSS & exposure are time-varying; verify live at the source.
  • Threat-actor attribution not established from feed data — absence of a name is not absence of compromise.
  • No finder/reporter credit recorded in the public CVE entry — the work behind this find is unattributed.
  • Disclosure & credit2
    Catalogued by redhatCNA
    Credited with finding itNo finder named in the public CVE record — the work behind this find is unattributed.