CVE-2025-11539Network attack vectorHinoki check available

Remote code execution via arbitrary shared-object write

Published Oct 9, 2025 · Updated Oct 9, 2025

Arbitrary file write in Grafana Image Renderer 1.0.0 through 4.0.16 allows remote authenticated users to execute arbitrary code. The /render/csv endpoint accepts an unvalidated filePath, writes an attacker-supplied shared object to an arbitrary location, and Chromium later loads it. Exploitation requires endpoint access plus the default authToken or another known token, and successful execution compromises the renderer process.

CVSS severity9.9
Critical
EPSS probability0.64%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Arbitrary file write in Grafana Image Renderer 1.0.0 through 4.0.16 allows remote authenticated users to execute arbitrary code. The /render/csv endpoint accepts an unvalidated filePath, writes an attacker-supplied shared object to an arbitrary location, and Chromium later loads it. Exploitation requires endpoint access plus the default authToken or another known token, and successful execution compromises the renderer process.

The record

CVE
CVE-2025-11539
Published
Oct 9, 2025
Updated
Oct 9, 2025
Vendor
Grafana Labs
Product
Grafana Image Renderer
Classifications
CWE-94, CAPEC-253, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 9, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 9, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.0.0 <=4.0.16

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Grafana Labs · Grafana Image Rendererversion=1.0.0 <=4.0.16

Published CVSS scores

9.9Grafana LabsCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
CAPEC-253Remote Code Inclusion
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo