NVD / CVE Program· CNA VulnCheck

CVE-2026-56373: ImageMagick - Use-After-Free Write in PDB Decoder

MediumCVSS 6.3 · v4.0—No exploit Fix available

Noroxi assessment

Priority: Monitor (action score 25/100)

The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
Probability of exploitation in the next 30 days: 0.23% (FIRST EPSS).
Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. Special conditions such as timing or configuration are required.
Fixed version: ImageMagick ImageMagick 6.9.13-40, 7.1.2-15.

Low priority for now. Upgrade to ImageMagick ImageMagick 6.9.13-40, 7.1.2-15 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

ImageMagick before 7.1.2-15 contains a use-after-free vulnerability in the PDB decoder that uses a stale pointer when memory allocation fails. Attackers can trigger this vulnerability by processing malicious PDB files to cause crashes or write a single zero byte to freed memory.

Published: Jul 10, 2026
Updated: Oct 29, 2026
EPSS: 0.2% · 14th percentile
CWE: CWE-416

Report tools

JSON

Action score

Monitor

Low priority for now.

CVSS: 25 / 40 · 6.3 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 0.2%

CISA SSVC decision

Exploitation: none
Automatable: no
Technical impact: partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD: —
CNA · VulnCheck: 6.3; NVD has not scored this yet; the score shown is the CNA’s.

CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

Not in KEV: no record of exploitation in the wild
No public exploit code on record
A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Is your version affected? Check it

Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

Vendor	Product	CPE
imagemagick	imagemagick	cpe:2.3:a:imagemagick:imagemagick

Versions reported by the vendor

Affected version ranges reported by the assigning authority (VulnCheck). Independent of NVD's CPE analysis and usually ahead of it.

ImageMagick ImageMagick
- 7.1.2-15, 6.9.13-40not affected
- 7.0.0 and later · before 7.1.2-15affected · semver
- before 6.9.13-40affected · semver

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

imagemagick imagemagickbefore 6.9.13-40
imagemagick imagemagick7.0.0-0 and later · before 7.1.2-15

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

Ecosystem	Package	Affected range	Fix
Debian:12	imagemagick	before 8:6.9.11.60+dfsg-1.6+deb12u12	8:6.9.11.60+dfsg-1.6+deb12u12
Debian:13	imagemagick	before 8:7.1.1.43+dfsg1-1+deb13u12	8:7.1.1.43+dfsg1-1+deb13u12
Debian:14	imagemagick	before 8:7.1.2.15+dfsg1-1	8:7.1.2.15+dfsg1-1
NuGet	Magick.NET-Q16-AnyCPU	before 14.10.3	14.10.3
NuGet	Magick.NET-Q16-arm64	before 14.10.3	14.10.3
NuGet	Magick.NET-Q16-HDRI-AnyCPU	before 14.10.3	14.10.3
NuGet	Magick.NET-Q16-HDRI-arm64	before 14.10.3	14.10.3
NuGet	Magick.NET-Q16-HDRI-OpenMP-arm64	before 14.10.3	14.10.3
NuGet	Magick.NET-Q16-HDRI-OpenMP-x64	before 14.10.3	14.10.3
NuGet	Magick.NET-Q16-HDRI-x64	before 14.10.3	14.10.3
NuGet	Magick.NET-Q16-HDRI-x86	before 14.10.3	14.10.3
NuGet	Magick.NET-Q16-OpenMP-arm64	before 14.10.3	14.10.3
NuGet	Magick.NET-Q16-OpenMP-x64	before 14.10.3	14.10.3
NuGet	Magick.NET-Q16-OpenMP-x86	before 14.10.3	14.10.3
NuGet	Magick.NET-Q16-x64	before 14.10.3	14.10.3
NuGet	Magick.NET-Q16-x86	before 14.10.3	14.10.3
NuGet	Magick.NET-Q8-AnyCPU	before 14.10.3	14.10.3
NuGet	Magick.NET-Q8-arm64	before 14.10.3	14.10.3
NuGet	Magick.NET-Q8-OpenMP-arm64	before 14.10.3	14.10.3
NuGet	Magick.NET-Q8-OpenMP-x64	before 14.10.3	14.10.3
NuGet	Magick.NET-Q8-x64	before 14.10.3	14.10.3
NuGet	Magick.NET-Q8-x86	before 14.10.3	14.10.3
openSUSE:Leap 16.0	ImageMagick	before 7.1.2.0-160000.12.1	7.1.2.0-160000.12.1
openSUSE:Tumbleweed	ImageMagick	before 7.1.2.27-2.1	7.1.2.27-2.1

Same product

imagemagick: all records

Other highest-scoring records for the same primary product.

CVE-2016-3714The (1) EPHEMERAL, (2) HTTPS, (3) MVG, (4) MSL, (5) TEXT, (6) SHOW, (7) WIN, and (8) PLT coders in ImageMagick before 6.9.3-10 and 7.x…KEV
92Now
CVE-2016-3718The (1) HTTP and (2) FTP coders in ImageMagick before 6.9.3-10 and 7.x before 7.0.1-1 allow remote attackers to conduct server-side request…KEV
75This week
CVE-2016-3715The EPHEMERAL coder in ImageMagick before 6.9.3-10 and 7.x before 7.0.1-1 allows remote attackers to delete arbitrary files via a crafted…KEV
75This week

Published before and after this one in the same product

← EarlierCVE-2026-56374Jul 8, 2026 · ImageMagick - Heap Buffer Overflow in FTXT Encoder via format Parameter
19Monitor
← EarlierCVE-2026-56366Jul 10, 2026 · ImageMagick - Memory Leak in META Reader APP1JPEG Error Path
19Monitor
Later →CVE-2026-56372Jul 11, 2026 · ImageMagick - Heap Buffer Overflow Read via Unrecognized Magnify Method
19Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / package	Fixed version	Source
ImageMagick ImageMagick	6.9.13-40	Vendor (CNA)
ImageMagick ImageMagick	7.1.2-15	Vendor (CNA)
debian:imagemagick	8:6.9.11.60+dfsg-1.6+deb12u12 · Debian:12	Package registry (OSV)
NuGet:Magick.NET-Q16-AnyCPU	14.10.3	Package registry (OSV)
NuGet:Magick.NET-Q16-arm64	14.10.3	Package registry (OSV)
NuGet:Magick.NET-Q16-HDRI-AnyCPU	14.10.3	Package registry (OSV)
NuGet:Magick.NET-Q16-HDRI-arm64	14.10.3	Package registry (OSV)
NuGet:Magick.NET-Q16-HDRI-OpenMP-arm64	14.10.3	Package registry (OSV)
NuGet:Magick.NET-Q16-HDRI-OpenMP-x64	14.10.3	Package registry (OSV)
NuGet:Magick.NET-Q16-HDRI-x64	14.10.3	Package registry (OSV)
NuGet:Magick.NET-Q16-HDRI-x86	14.10.3	Package registry (OSV)
NuGet:Magick.NET-Q16-OpenMP-arm64	14.10.3	Package registry (OSV)
NuGet:Magick.NET-Q16-OpenMP-x64	14.10.3	Package registry (OSV)
NuGet:Magick.NET-Q16-OpenMP-x86	14.10.3	Package registry (OSV)
NuGet:Magick.NET-Q16-x64	14.10.3	Package registry (OSV)
NuGet:Magick.NET-Q16-x86	14.10.3	Package registry (OSV)
NuGet:Magick.NET-Q8-AnyCPU	14.10.3	Package registry (OSV)
NuGet:Magick.NET-Q8-arm64	14.10.3	Package registry (OSV)
NuGet:Magick.NET-Q8-OpenMP-arm64	14.10.3	Package registry (OSV)
NuGet:Magick.NET-Q8-OpenMP-x64	14.10.3	Package registry (OSV)
NuGet:Magick.NET-Q8-x64	14.10.3	Package registry (OSV)
NuGet:Magick.NET-Q8-x86	14.10.3	Package registry (OSV)
opensuse:ImageMagick	7.1.2.27-2.1 · openSUSE:Tumbleweed	Package registry (OSV)
suse:ImageMagick	7.1.2.0-160000.12.1 · SUSE:Linux Enterprise Server 16.0	Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

zerojackyireporter

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

CVE-2026-25983137 days apartImageMagick has Use After Free in MSLStartElement in "coders/msl.c"
39Monitor
CVE-2026-618611 days apartImageMagick before 7.1.2-26 Use-After-Free in FormatMagickCaption
25Monitor
CVE-2026-618605 days apartImageMagick before 7.1.2-26 Use-After-Free via freetype
25Monitor
CVE-2026-5637617 days apartImageMagick - Heap Use-After-Free in Meta Coder
25Monitor
CVE-2026-10926894 days apartImageMagick before 6.9.13-57 and 7.x before 7.1.2-32 Use After Free in PDF Writer via JPEG2000
25Monitor
CVE-2026-4652330 days apartImageMagick: Use-After-Free in MSL decoder.
24Monitor

Not on record for this CVE: EPSS history · patch commit or PR link · public bounty program.

Technical details

Attack conditions

Anyone who can reach it over the internet can trigger it.
No account or password is required.
No user action is required.
Special conditions such as timing or configuration are required.

If successful

Confidentiality
Integrity
Availability

Attack vector: Network
Attack complexity: High
Privileges required: None
User interaction: None
Scope: X

Weakness class (CWE)

CWE-416 · Use After Free

CVSS vector

CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/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

nvd-secondary

Root cause

After a memory region is freed, another reference pointing to it is still used. By then, the same region may have been allocated for different data.

The bug in code

The whole CWE-416 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

1free(dev->buf);
2/* ... another thread is still running ... */
3process(dev->buf);

Fixed

1lock(&dev->lock);
2free(dev->buf);
3dev->buf = NULL;
4unlock(&dev->lock);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log (1)

Fix✗ → ✓Sep 28, 2026, 10:11 PM UTC

For records you follow, these changes also arrive as notifications. →

References

github.com/ImageMagick/ImageMagick/security/advisories/GHSA-3j4x-rwrx-xxj9

Show all references (1 more)

www.vulncheck.com/advisories/imagemagick-use-after-free-write-in-pdb-decoder

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records