CVE-2026-97059 json
DCMTK through 3.7.0 Heap Over-read via NumberOfFrames
published last mo. modified last mo. also EUVD-2026-85885
- cvss
- 8.2
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 28%
- public exploits
- 0
- none known
Summary
DCMTK through 3.7.0 contains a heap over-read vulnerability in ConcatenationLoader that copies pixel data frames without validating the PixelData buffer length against the declared NumberOfFrames. Attackers can craft malicious DICOM instances declaring more frames than the buffer contains to trigger heap over-reads that crash the application or leak adjacent heap memory.
Patch / fix
- github.com/DCMTK/dcmtk@18379d5 commit
- github.com/DCMTK/dcmtk@c337908 commit
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Check with FencerVendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
red hat product security vex CVE-2026-97059 updated cvss 8.2
dcmtk: DCMTK: Heap Over-read via malicious DICOM instances
-
Red Hat All currently supported Red Hat productsnot affected: vulnerable code not present
Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- last mo.
Exploit prediction
0.34% chance of exploitation in the next 30 days, higher than 28% of all scored CVEs (FIRST EPSS, 2026-11-11).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 8.8 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N |
| CNA | 3.1 | 8.2 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H |
| CNA | 4.0 | 8.8 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:H/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 |
Affected products
- OFFIS DCMTK
Classification
- Weakness
-
- CWE-125 Out-of-bounds Read
References
-
github.com
/DCMTK/dcmtk/commit/18379d5b8d234977cc30644e9e70d76d89c87285
patch
-
github.com
/DCMTK/dcmtk/commit/c33790827a192a598d20463af701a8b819f46ec1
patch
-
support.dcmtk.org
/redmine/issues/1281
issue-tracking
-
github.com
/DCMTK/dcmtk/blob/ccfd10b84ff3c9a40b7b331698aedf06d421fc43/dcmfg/libsrc/concatenationloader.cc#L334-L360
technical-description
-
github.com
/DCMTK/dcmtk/blob/ccfd10b84ff3c9a40b7b331698aedf06d421fc43/dcmfg/libsrc/concatenationloader.cc#L399-L430
technical-description
-
github.com
/DCMTK/dcmtk
product
-
vulncheck.com
/advisories/dcmtk-through-3.7.0-heap-over-read-via-numberofframes
third-party-advisory
Sources
- CVE List CVE-2026-97059
- NVD CVE-2026-97059
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