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

Collected exploitation and prediction evidence

Risk source coverage

CISA KEV is observed exploitation evidence. FIRST EPSS is a dated prediction of exploitation in the next 30 days. Missing scores are unknown. This collector requests predictions only for explicit CVE aliases in the public NuGet archive; Microsoft release views retain their existing prediction scope.

CVE-2026-56361

Exact risk observation. Current source statements above are a separate evidence layer. Latest risk evidence.

No KEV entry is attached to this observation; this is not evidence that exploitation is absent.

FIRST EPSS: 0.13 % · percentile 2.42 % · scored 26 Oct 2026. Retained older prediction.

Observed 27 Oct 2026 00:23:05 UTC · Complete immutable risk JSON

cve-program · CVE-2026-56361

Published

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.

Source published
30 Jun 2026 22:08:36 UTC
Source modified
29 Oct 2026 21:15:49 UTC
Observed here
29 Oct 2026 22:48:55 UTC
Source terms
CVE Program Terms of Use

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: cve-program · CVE Program Terms of Use. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS 4.0 · 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

CVSS 3.1 · 3.3 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

euvd · EUVD-2026-40445

Published

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.

EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON.

Original publisher date fields

datePublished: Jun 30, 2026, 10:08:36 PM

dateUpdated: Oct 29, 2026, 9:15:49 PM

5 related source bulletins · separate from aliases

openSUSE-SU-2026:21291-1: Security update for ImageMagick

CVE-2026-53466 · CVE-2026-53467 · CVE-2026-55594 · CVE-2026-55595 · CVE-2026-55597 · CVE-2026-56361 · CVE-2026-56363 · CVE-2026-56364 · CVE-2026-56374 · CVE-2026-56379

SUSE-SU-2026:3023-1: Security update for ImageMagick

CVE-2026-40169 · CVE-2026-42050 · CVE-2026-42326 · CVE-2026-45031 · CVE-2026-45358 · CVE-2026-45359 · CVE-2026-45624 · CVE-2026-45664 · CVE-2026-46520 · CVE-2026-46521 · CVE-2026-46522 · CVE-2026-46523 · CVE-2026-46557 · CVE-2026-46559 · CVE-2026-46692 · CVE-2026-46693 · CVE-2026-47165 · CVE-2026-47166 · CVE-2026-48734 · CVE-2026-48994 · CVE-2026-49218 · CVE-2026-53460 · CVE-2026-53461 · CVE-2026-53463 · CVE-2026-53464 · CVE-2026-53466 · CVE-2026-53467 · CVE-2026-55594 · CVE-2026-55595 · CVE-2026-55597 · CVE-2026-56361 · CVE-2026-56363 · CVE-2026-56364 · CVE-2026-56365 · CVE-2026-56367 · CVE-2026-56368 · CVE-2026-56370 · CVE-2026-56371 · CVE-2026-56374 · CVE-2026-56376 · CVE-2026-56379

SUSE-SU-2026:22620-1: Security update for ImageMagick

CVE-2026-53466 · CVE-2026-53467 · CVE-2026-55594 · CVE-2026-55595 · CVE-2026-55597 · CVE-2026-56361 · CVE-2026-56363 · CVE-2026-56364 · CVE-2026-56374 · CVE-2026-56379

openSUSE-SU-2026:11228-1: ImageMagick-7.1.2.27-1.1 on GA media

CVE-2026-53466 · CVE-2026-53467 · CVE-2026-55510 · CVE-2026-55577 · CVE-2026-55594 · CVE-2026-55595 · CVE-2026-55597 · CVE-2026-55628 · CVE-2026-56361 · CVE-2026-56362 · CVE-2026-56363 · CVE-2026-56364 · CVE-2026-56365 · CVE-2026-56374 · CVE-2026-56377

SUSE-SU-2026:3024-1: Security update for ImageMagick

CVE-2026-42050 · CVE-2026-42326 · CVE-2026-45031 · CVE-2026-45358 · CVE-2026-45624 · CVE-2026-45664 · CVE-2026-46520 · CVE-2026-46521 · CVE-2026-46522 · CVE-2026-46523 · CVE-2026-46692 · CVE-2026-46693 · CVE-2026-47165 · CVE-2026-47166 · CVE-2026-48994 · CVE-2026-49218 · CVE-2026-53460 · CVE-2026-53463 · CVE-2026-53466 · CVE-2026-53467 · CVE-2026-56361 · CVE-2026-56363 · CVE-2026-56365 · CVE-2026-56367 · CVE-2026-56368 · CVE-2026-56371 · CVE-2026-56379

Source published
Jun 30, 2026, 10:08:36 PM (timezone not stated)
Source modified
Oct 29, 2026, 9:15:49 PM (timezone not stated)
Observed here
5 Nov 2026 11:48:30 UTC
Source terms
ENISA EUVD · source terms and attribution apply

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: euvd · ENISA EUVD · source terms and attribution apply. Source text is retained; field grouping and change labels are provided by ChangeIntel.

EUVD CVSS 4.0 · 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

nvd · CVE-2026-56361

Published

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.

NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON.

Source analysis status: Analyzed

Weakness classifications: CWE-125

Original publisher date fields

published: 2026-06-30T23:17:31.140

lastModified: 2026-10-29T21:17:24.340

1 source CPE criteria · context only
  • cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:*

The original JSON retains the logical configuration operators, exclusions and version bounds.

Source published
30 Jun 2026 23:17:31 UTC
Source modified
29 Oct 2026 21:17:24 UTC
Observed here
31 Oct 2026 17:06:56 UTC
Source terms
NIST NVD usage terms; underlying source attribution retained

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: nvd · NIST NVD usage terms; underlying source attribution retained. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS 4.0 · [email protected] · Secondary · 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS 3.1 · [email protected] · Secondary · 3.3 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

CVSS 3.1 · [email protected] · Primary · 7.1 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H

osv · GHSA-q8h3-jv9v-57qx

Published

An incorrect morphology would allow an out of bounds read of a single pixel. ``` ==1200284==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x5100000002d0 at pc 0x59e28e60c27a bp 0x7fff047fd8e0 sp 0x7fff047fd8d0 READ of size 4 at 0x5100000002d0 thread T0 ```

Source published
14 Apr 2026 23:31:38 UTC
Source modified
8 Jul 2026 08:12:15 UTC
Observed here
23 Oct 2026 16:01:25 UTC
Source terms
GitHub Advisory Database · CC-BY-4.0

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: osv · GitHub Advisory Database · CC-BY-4.0. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS_V3 · CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

Publisher rating · LOW

ChangeIntel

An IT change radar: releases, security, known issues, retirements, documentation changes, and service status from public sources. Every item links to supporting evidence; dates and statuses can change after they are read.

Sources read 7 Nov 05:48 UTC · 275 of 275 readable · 274 fully read · documentation 469/469 current