# CVE-2026-66011 — ImageMagick

> As of 2026-07-25, CVE-2026-66011 is a LOW-severity vulnerability in ImageMagick, CVSS v3.1 3.3, EPSS 0.1% (1.1th percentile). No Threadlinqs-tracked threat campaign has been attributed to CVE-2026-66011 as of 2026-07-25; the identifier is re-checked against the Threadlinqs threat corpus on every daily ingest.

**Last updated:** 2026-07-25

## What is CVE-2026-66011?

ImageMagick before 7.1.2-27 contains a memory leak vulnerability in the magick command-line interface when invalid options are provided. Attackers can trigger memory exhaustion by repeatedly supplying malformed command-line arguments to consume system resources.

The record classifies CVE-2026-66011 under weakness class [CWE-401](https://intel.threadlinqs.com/cwe/CWE-401). Its CVSS v3 base vector states that the flaw requires local access to the host, needs no prior authentication, needs a user to take an action first. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 72 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 3.3 — LOW (`CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L`)
- **CVSS v4.0 base score:** 4.8 (`CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N`)
- **EPSS (FIRST):** 0.1% probability of exploitation in the next 30 days, higher than 1.1% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 1.7/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-07-25

## Is CVE-2026-66011 being exploited?

It currently carries a trending score of 30 in the Threadlinqs vulnerability feed.

## Affected products and versions

- [ImageMagick](https://intel.threadlinqs.com/vendors/imagemagick): ImageMagick

## How to fix CVE-2026-66011

No vendor patch reference has been recorded for CVE-2026-66011 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

## Threat activity tracking CVE-2026-66011

No threat campaign in the Threadlinqs corpus currently references CVE-2026-66011, in its CVE list or as an indicator. The linkage is recomputed from the live corpus on every daily ingest, so this section fills in as soon as a tracked campaign cites the identifier.

## Sources

Enriched from CVE.org, NVD, FIRST EPSS. Last verified by Threadlinqs on 2026-07-26. This product uses the NVD API but is not endorsed or certified by the NVD.

**Vendor advisory and patch**

- [github.com — vendor advisory](https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-cvhv-g4rq-3hmw)

**Third-party advisory**

- [vulncheck.com — third party advisory](https://www.vulncheck.com/advisories/imagemagick-before-27-memory-leak-via-invalid-cli-options)

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-66011
Full detection coverage and IOCs for threats exploiting CVE-2026-66011 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp