CVE-2026-56361

HIGHNVD 7.13.3▼
EchelonGraph scoreMEDIUM confidence

Score 3.3 from GitHub Security Advisory published 2026-07-01. NVD baseline CVSS 7.1; sources differ by 3.8.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 4 sources updated this week
7.1
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.1Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

ImageMagick before 7.1.2-19 contains an off-by-one error in morphology validation allowing out-of-bounds heap buffer reads. Attackers can trigger heap buffer overflow by providing incorrect morphology parameters causing single pixel memory access violations.

CVSS v3
7.1
EG Score
3.3(medium)
EPSS
2.8%
KEV
Not listed

Published

July 1, 2026

Last Modified

July 2, 2026

Advisory Details (2)

Auto-updated Jul 2, 2026
Patch available. Sources: github.
generic

ImageMagick - Heap Buffer Overflow via Off-by-One in Morphology Processing | Advisories | VulnCheck

https://www.vulncheck.com/advisories/imagemagick-heap-buffer-overflow-via-off-by-one-in-morphology-processing
github Patch Available

Off-by-one origin validation in allows out-of-bounds read in morphology processing · Advisory · ImageMagick/ImageMagick · GitHub

https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-q8h3-jv9v-57qx

Vendor Advisories for CVE-2026-56361(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 13× in last 7d / 13× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-06 16:27 UTCEPSS rescore
  2. 2026-07-06 16:27 UTCEPSS rescore
  3. 2026-07-06 02:23 UTCEPSS rescore
  4. 2026-07-06 02:23 UTCEPSS rescore
  5. 2026-07-04 08:09 UTCEG score recompute
  6. 2026-07-04 08:09 UTCGHSA enrichment
  7. 2026-07-04 06:31 UTCEPSS rescore
  8. 2026-07-04 06:31 UTCEPSS rescore
  9. 2026-07-02 20:05 UTCNVD updateCVSS v3 → 7.1 · severity → HIGH
  10. 2026-07-01 17:06 UTCNVD updateCVSS v4 → 4.8 · severity → LOW
  11. 2026-07-01 15:07 UTCEPSS rescore
  12. 2026-07-01 01:20 UTCEG score recompute
  13. 2026-07-01 01:20 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2026-56361?
CVE-2026-56361 is a high vulnerability published on July 1, 2026. ImageMagick before 7.1.2-19 contains an off-by-one error in morphology validation allowing out-of-bounds heap buffer reads. Attackers can trigger heap buffer overflow by providing incorrect morphology parameters causing single pixel memory access violations.
When was CVE-2026-56361 disclosed?
CVE-2026-56361 was first published in the National Vulnerability Database on July 1, 2026, with the most recent update on July 2, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-56361 actively exploited?
CVE-2026-56361 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-56361?
CVE-2026-56361 has a CVSS v3 base score of 7.1 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 3.3.
How do I remediate CVE-2026-56361?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-56361, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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