Evidence used
- No CISA KEV confirmation is currently recorded.
- The selected CVSS metric records a network-reachable, unauthenticated path with no user interaction.
- EPSS is 0.39% for the current model date.
BlackTreeCVE IntelligenceFull vulnerability report · 2026
CVE-2026-56378High confidence
ImageMagick - Heap Out-of-Bounds Read in PCD Decoder
ImageMagick · ImageMagick
Official source article: GitHub GHSA-WGXP-Q8XQ-WPP9 ↗. Check the applicable product and release in the original source.
6.3MediumCVSS 4.0
Patch only the product branches with a verified fix
Fix availability varies by productMedium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority. Verified remediation exists for at least one product or source, but 14 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.
R
Open reassessment dashboard →Operational reassessment
Published severity in operational context
Published severityMedium→Operational priority:Medium, unchanged from published severity.unchanged
Compensating controls
- Validate the affected product branch and deploy the verified fixed release.
- Restrict the affected network interface to trusted sources where business-safe.
- Monitor vendor guidance and exploitation sources for a material change.
Verification
- Confirm that the asset runs ImageMagick ImageMagick and falls inside the recorded affected range.
- Verify the installed build against the product-specific fixed version after deployment.
- Validate exposure, authentication requirements and compensating controls in the actual environment.
- Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.
Remediation availability differs by product scope
Verified remediation exists for at least one product or source, but 14 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.
- Red Hat Product Security: 14 affected or under-investigation product states without a fixed product state in the same current advisory
Distribution package intelligence
5 package statesRelease-specific package status
Debian, ubuntu findings are scoped to the named distribution, release and source package. An absent finding does not mean a package is unaffected.
Repository candidate not checked
A published vendor fix does not prove that a matching update is enabled and installable on a particular asset. Confirm the local package candidate before scheduling remediation.
| Distribution release | Source package | Vendor state | Fixed version | Evidence |
|---|---|---|---|---|
| Debian trixietrixie · source | imagemagick | Vendor fix publishedDebian records a fixed source-package version for this release. | 8:7.1.1.43+dfsg1-1+deb13u11 | Debian Security Tracker ↗Source updated 5 Oct 2026 |
| Debian bookwormbookworm · source | imagemagick | Vendor fix publishedDebian records a fixed source-package version for this release. | 8:6.9.11.60+dfsg-1.6+deb12u12 | Debian Security Tracker ↗Source updated 5 Oct 2026 |
| Debian forkyforky · source | imagemagick | Vendor fix publishedDebian records a fixed source-package version for this release. | 8:7.1.2.15+dfsg1-1 | Debian Security Tracker ↗Source updated 5 Oct 2026 |
| Debian sidsid · source | imagemagick | Vendor fix publishedDebian records a fixed source-package version for this release. | 8:7.1.2.15+dfsg1-1 | Debian Security Tracker ↗Source updated 5 Oct 2026 |
| Ubuntu 24.04 LTSnoble · esm-apps | imagemagick | Vendor fix publishedCanonical reports that a fixed source package version has been published. Repository candidate availability is not checked by BlackTree. | 8:6.9.12.98+dfsg1-5.2ubuntu0.1~esm13 | Canonical Ubuntu Security ↗Source updated 5 Oct 2026 |
Open-source package ranges19 source-attributed ranges
These OSV and GitHub advisory ranges apply only to the named package and ecosystem. A listed fixed version is not a universal product patch or proof that an update is installed.
| Ecosystem and package | Affected range | First fixed version | Evidence |
|---|---|---|---|
| NuGetMagick.NET-Q16-AnyCPU | ECOSYSTEM: introduced 0; fixed 14.10.3 | 14.10.3 | OSV record ↗aggregator derived · 8 Jul 2026 |
| NuGetMagick.NET-Q16-HDRI-AnyCPU | ECOSYSTEM: introduced 0; fixed 14.10.3 | 14.10.3 | OSV record ↗aggregator derived · 8 Jul 2026 |
| NuGetMagick.NET-Q16-HDRI-OpenMP-arm64 | ECOSYSTEM: introduced 0; fixed 14.10.3 | 14.10.3 | OSV record ↗aggregator derived · 8 Jul 2026 |
| NuGetMagick.NET-Q16-HDRI-OpenMP-x64 | ECOSYSTEM: introduced 0; fixed 14.10.3 | 14.10.3 | OSV record ↗aggregator derived · 8 Jul 2026 |
| NuGetMagick.NET-Q16-HDRI-arm64 | ECOSYSTEM: introduced 0; fixed 14.10.3 | 14.10.3 | OSV record ↗aggregator derived · 8 Jul 2026 |
| NuGetMagick.NET-Q16-HDRI-x64 | ECOSYSTEM: introduced 0; fixed 14.10.3 | 14.10.3 | OSV record ↗aggregator derived · 8 Jul 2026 |
| NuGetMagick.NET-Q16-HDRI-x86 | ECOSYSTEM: introduced 0; fixed 14.10.3 | 14.10.3 | OSV record ↗aggregator derived · 8 Jul 2026 |
| NuGetMagick.NET-Q16-OpenMP-arm64 | ECOSYSTEM: introduced 0; fixed 14.10.3 | 14.10.3 | OSV record ↗aggregator derived · 8 Jul 2026 |
| NuGetMagick.NET-Q16-OpenMP-x64 | ECOSYSTEM: introduced 0; fixed 14.10.3 | 14.10.3 | OSV record ↗aggregator derived · 8 Jul 2026 |
| NuGetMagick.NET-Q16-OpenMP-x86 | ECOSYSTEM: introduced 0; fixed 14.10.3 | 14.10.3 | OSV record ↗aggregator derived · 8 Jul 2026 |
| NuGetMagick.NET-Q16-arm64 | ECOSYSTEM: introduced 0; fixed 14.10.3 | 14.10.3 | OSV record ↗aggregator derived · 8 Jul 2026 |
| NuGetMagick.NET-Q16-x64 | ECOSYSTEM: introduced 0; fixed 14.10.3 | 14.10.3 | OSV record ↗aggregator derived · 8 Jul 2026 |
| NuGetMagick.NET-Q16-x86 | ECOSYSTEM: introduced 0; fixed 14.10.3 | 14.10.3 | OSV record ↗aggregator derived · 8 Jul 2026 |
| NuGetMagick.NET-Q8-AnyCPU | ECOSYSTEM: introduced 0; fixed 14.10.3 | 14.10.3 | OSV record ↗aggregator derived · 8 Jul 2026 |
| NuGetMagick.NET-Q8-OpenMP-arm64 | ECOSYSTEM: introduced 0; fixed 14.10.3 | 14.10.3 | OSV record ↗aggregator derived · 8 Jul 2026 |
| NuGetMagick.NET-Q8-OpenMP-x64 | ECOSYSTEM: introduced 0; fixed 14.10.3 | 14.10.3 | OSV record ↗aggregator derived · 8 Jul 2026 |
| NuGetMagick.NET-Q8-arm64 | ECOSYSTEM: introduced 0; fixed 14.10.3 | 14.10.3 | OSV record ↗aggregator derived · 8 Jul 2026 |
| NuGetMagick.NET-Q8-x64 | ECOSYSTEM: introduced 0; fixed 14.10.3 | 14.10.3 | OSV record ↗aggregator derived · 8 Jul 2026 |
| NuGetMagick.NET-Q8-x86 | ECOSYSTEM: introduced 0; fixed 14.10.3 | 14.10.3 | OSV record ↗aggregator derived · 8 Jul 2026 |
Direct vendor intelligence
1 currentAuthoritative vendor CSAF and VEX advisories
Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.
CVE-2026-56378 · CSAF 2.0 · revision 3 · finalRed Hat Product SecurityMagick.NET: ImageMagick: Denial of Service and Information Disclosure via crafted PCD file
The vendor explicitly identifies these products as affected by this CVE.
- ImageMagick as a component of Red Hat Enterprise Linux 6
- ImageMagick-c++ as a component of Red Hat Enterprise Linux 6
- ImageMagick-c++-devel as a component of Red Hat Enterprise Linux 6
- ImageMagick-devel as a component of Red Hat Enterprise Linux 6
- ImageMagick-doc as a component of Red Hat Enterprise Linux 6
- ImageMagick-perl as a component of Red Hat Enterprise Linux 6
- ImageMagick.src as a component of Red Hat Enterprise Linux 6
- ImageMagick as a component of Red Hat Enterprise Linux 7
- ImageMagick-c++ as a component of Red Hat Enterprise Linux 7
- ImageMagick-c++-devel as a component of Red Hat Enterprise Linux 7
- ImageMagick-devel as a component of Red Hat Enterprise Linux 7
- ImageMagick-doc as a component of Red Hat Enterprise Linux 7
- Summary
- A vulnerability in ImageMagick allows attackers to crash the application or expose system data if a maliciously crafted Picture CD (PCD) file is processed.
- Remediation
- Avoid processing untrusted PCD (Picture CD) image files with ImageMagick. Applications that utilize ImageMagick for image processing should ensure that input files originate from trusted sources or are thoroughly validated.
Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority. Verified remediation exists for at least one product or source, but 14 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.
Fix availability varies by product01
What, why and how
ImageMagick before 7.1.2-15 (and 6.x before 6.9.13-40) contains a heap out-of-bounds read in the PCD coder's DecodeImage loop. A crafted PCD file can trigger a one-byte heap out-of-bounds read during image decoding, resulting in denial of service and potential disclosure of an adjacent heap byte.
What
ImageMagick before 7.1.2-15 (and 6.x before 6.9.13-40) contains a heap out-of-bounds read in the PCD coder's DecodeImage loop. A crafted PCD file can trigger a one-byte heap out-of-bounds read during image decoding, resulting in denial of service and potential disclosure of an adjacent heap byte.
Why
The product reads data past the end, or before the beginning, of the intended buffer.
How
An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may disrupt the affected service.
What
ImageMagick before 7.1.2-15 (and 6.x before 6.9.13-40) contains a heap out-of-bounds read in the PCD coder's DecodeImage loop. A crafted PCD file can trigger a one-byte heap out-of-bounds read during image decoding, resulting in denial of service and potential disclosure of an adjacent heap byte.
Why
The product reads data past the end, or before the beginning, of the intended buffer.
How
An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may disrupt the affected service.
02
Exploit reality and attack path
CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.
Observed exploitation No confirmed evidence
?
Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.
Public PoC / exploit material None recorded
?
Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.
- Likely attack path
- a network path → Out-of-bounds Read → disrupt the affected service
- Attack surface
- Network
- Privileges required
- None: unauthenticated exploitation is possible
- User interaction
- None
- Attack complexity
- High: exploitation depends on specific conditions
- Security boundary
- Not a CVSS 4.0 base metric
- Weakness
?
CWE means Common Weakness Enumeration: a standard category for the underlying weakness. - CWE-125 ↗
CWE-125: Out-of-bounds Read. The product reads data past the end, or before the beginning, of the intended buffer.
- CVSS vector
?
CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity. CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:NCommon Vulnerability Scoring System 4.0: the compact vector below is decoded into plain language.
AVNetworkAttack vector: The vulnerable component can be reached over a network.ACHighAttack complexity: Successful exploitation depends on specific conditions outside the attacker's direct control.ATPresentAttack requirements: A particular deployment or execution condition must be present.PRNonePrivileges required: The attacker does not need an account or existing privileges.UINoneUser interaction: No action by another user is required.VCLowVulnerable-system confidentiality: A successful attack can cause a limited loss.VINoneVulnerable-system integrity: No direct loss is represented by this metric.VANoneVulnerable-system availability: No direct loss is represented by this metric.SCNoneSubsequent-system confidentiality: No direct loss is represented by this metric.SINoneSubsequent-system integrity: No direct loss is represented by this metric.SANoneSubsequent-system availability: No direct loss is represented by this metric.- Post-exploitation / living off the land
- No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
03
Patch and workaround
Operational remediation based on structured source evidence.
- Status
?
Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change. - Fix availability varies by product
- Affected
- ImageMagick as a component of Red Hat Enterprise Linux 6
- ImageMagick-c++ as a component of Red Hat Enterprise Linux 6
- ImageMagick-c++-devel as a component of Red Hat Enterprise Linux 6
- ImageMagick-devel as a component of Red Hat Enterprise Linux 6
- ImageMagick-doc as a component of Red Hat Enterprise Linux 6
- ImageMagick-perl as a component of Red Hat Enterprise Linux 6
- ImageMagick.src as a component of Red Hat Enterprise Linux 6
- ImageMagick as a component of Red Hat Enterprise Linux 7
- ImageMagick-c++ as a component of Red Hat Enterprise Linux 7
- ImageMagick-c++-devel as a component of Red Hat Enterprise Linux 7
- ImageMagick-devel as a component of Red Hat Enterprise Linux 7
- ImageMagick-doc as a component of Red Hat Enterprise Linux 7
- ImageMagick-perl as a component of Red Hat Enterprise Linux 7
- ImageMagick.src as a component of Red Hat Enterprise Linux 7
- Action
- Use the product-specific evidence above. Patch only products with a verified fixed release, and keep every affected or under-investigation state without a matching fix in the remediation queue.
- Workaround
- Avoid processing untrusted PCD (Picture CD) image files with ImageMagick. Applications that utilize ImageMagick for image processing should ensure that input files originate from trusted sources or are thoroughly validated.
04
Evidence and provenance
Published 21 Jun 2026 · Last source change 22 Jun 2026, 13:20 UTC · CWE-125 · Out-of-bounds Read
CVE recordCVE.org · 5.2
CVSS sourceCNA
EPSS source FIRST · tracked since 2026-08-14
?
The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.European sourceENISA EUVD · EUVD-2026-38174
Product sourceVendor CSAF · Red Hat Product Security
Remediation sourceVendor CSAF · Red Hat Product Security
CWE sourceCNA
NVD statusNVD enriched
Core structured fields are present and their contributing authorities are shown above.
Material change intelligence
View recent updates ↗What changed after publication
No material field changes have been recorded since change tracking began. Routine source refreshes and cosmetic edits are intentionally excluded.
CVE published
Fixed release or patch reference recorded
Technical terms and abbreviations used in this report
- CVE
- Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
- CVSS
- Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
- EPSS
- Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
- CWE
- Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
- CNA
- CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
- CISA ADP
- Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
- NVD
- National Vulnerability Database: NIST's enrichment service for CVE records.
- CERT / CSIRT
- A computer security incident response team that publishes warnings or coordinates incident response.
- PoC
- Proof of concept: public material that demonstrates or helps reproduce exploitation.
- CSAF
- Common Security Advisory Framework: a machine-readable format for security advisories.
- LoTL
- Living off the land: abuse of legitimate tools or system functions during an attack.