CVE-2026-22879: vtk Improper Validation of Array Index
Vulnerability summary
CVE-2026-22879 is a high (CVSS 8.1) Improper Validation of Array Index vulnerability in vtk. EPSS estimates a 0.49% chance of exploitation in the next 30 days, higher than 42.2% of scored vulnerabilities.
Severe, CVSS 8.1 (CVE.org); no exploitation reported by the 5 checked sources; EPSS 0% (FIRST, 03-11-2026)
Source freshness unavailable
How is this decided?Timeline
- 25-06-2026PublishedVulnerability first disclosed.
- 23-09-2026Last modifiedVulnerability information updated.
Description
A heap-based buffer overflow vulnerability exists in the vtkDICOMItem::FindDataElementOrInsert functionality of vtk-dicom (version(s): 9.5.2). A specially crafted DICOM file can lead to heap-based memory corruption. An attacker can provide a malicious file to trigger this vulnerability.
CVSS metrics
4 scores · 4 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated8.1HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated8.1HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- NVDNIST8.1HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.49%
Chance of exploitation in the next 30 days
Percentile
42%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.49% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Debian1 product
- vtk-dicomAll versions (No fix recorded)
Ubuntu1 product
- vtk-dicomAll versions (No fix recorded)
Vtk1 product
- vtk9.5.2
3 vendors · 3 products
